---
_id: '58180'
abstract:
- lang: eng
text: 'A series of CoIII complexes [Co(RImP)2][PF6], with HMeImP = 1,1′-(1,3-phenylene)bis(3-methyl-1-imidazole-2-ylidene))
and R = Me, Et, iPr, nBu, is presented in this work. The influence of the strong
donor ligand on the ground and excited-state photophysical properties was investigated
in the context of different alkyl substituents at the imidazole nitrogen. X-ray
diffraction revealed no significant alterations of the structures and all differences
in the series emerge from the electronic structures. These were probed via cyclic
voltammetry and UV–vis spectroscopy, detailing the influence of the different
alkyl substituents on the ground-state properties. All complexes are emissive
at 77 K from a 3MC state, which exhibits lifetimes in the range of 1–5 ns at room
temperature, depending on the alkyl substituent. Therefore, it is clearly shown
that even small differences in the electronic structure have a large impact on
the details of the excited state landscape. The observed behavior was rationalized
by a detailed DFT analysis, which shows that the minimum-energy crossing point
to the ground-state is located only slightly above the MC energy: Consequently,
nonradiative decay to the ground state at room temperature is enabled, while at
77 K this path is prohibited, leading to low-temperature 3MC emission.'
author:
- first_name: Athul
full_name: Krishna, Athul
last_name: Krishna
- first_name: Lorena
full_name: Fritsch, Lorena
id: '44418'
last_name: Fritsch
- first_name: Jakob
full_name: Steube, Jakob
id: '40342'
last_name: Steube
orcid: 0000-0003-3178-4429
- first_name: Miguel A.
full_name: Argüello Cordero, Miguel A.
last_name: Argüello Cordero
- first_name: Roland
full_name: Schoch, Roland
id: '48467'
last_name: Schoch
orcid: 0000-0003-2061-7289
- first_name: Adam
full_name: Neuba, Adam
last_name: Neuba
- first_name: Stefan
full_name: Lochbrunner, Stefan
last_name: Lochbrunner
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
citation:
ama: Krishna A, Fritsch L, Steube J, et al. Low Temperature Emissive Cyclometalated
Cobalt(III) Complexes. Inorganic Chemistry. Published online 2025. doi:10.1021/acs.inorgchem.4c04479
apa: Krishna, A., Fritsch, L., Steube, J., Argüello Cordero, M. A., Schoch, R.,
Neuba, A., Lochbrunner, S., & Bauer, M. (2025). Low Temperature Emissive Cyclometalated
Cobalt(III) Complexes. Inorganic Chemistry. https://doi.org/10.1021/acs.inorgchem.4c04479
bibtex: '@article{Krishna_Fritsch_Steube_Argüello Cordero_Schoch_Neuba_Lochbrunner_Bauer_2025,
title={Low Temperature Emissive Cyclometalated Cobalt(III) Complexes}, DOI={10.1021/acs.inorgchem.4c04479},
journal={Inorganic Chemistry}, publisher={American Chemical Society (ACS)}, author={Krishna,
Athul and Fritsch, Lorena and Steube, Jakob and Argüello Cordero, Miguel A. and
Schoch, Roland and Neuba, Adam and Lochbrunner, Stefan and Bauer, Matthias}, year={2025}
}'
chicago: Krishna, Athul, Lorena Fritsch, Jakob Steube, Miguel A. Argüello Cordero,
Roland Schoch, Adam Neuba, Stefan Lochbrunner, and Matthias Bauer. “Low Temperature
Emissive Cyclometalated Cobalt(III) Complexes.” Inorganic Chemistry, 2025.
https://doi.org/10.1021/acs.inorgchem.4c04479.
ieee: 'A. Krishna et al., “Low Temperature Emissive Cyclometalated Cobalt(III)
Complexes,” Inorganic Chemistry, 2025, doi: 10.1021/acs.inorgchem.4c04479.'
mla: Krishna, Athul, et al. “Low Temperature Emissive Cyclometalated Cobalt(III)
Complexes.” Inorganic Chemistry, American Chemical Society (ACS), 2025,
doi:10.1021/acs.inorgchem.4c04479.
short: A. Krishna, L. Fritsch, J. Steube, M.A. Argüello Cordero, R. Schoch, A. Neuba,
S. Lochbrunner, M. Bauer, Inorganic Chemistry (2025).
date_created: 2025-01-15T08:29:21Z
date_updated: 2025-08-15T12:30:18Z
department:
- _id: '306'
doi: 10.1021/acs.inorgchem.4c04479
keyword:
- Photo
language:
- iso: eng
publication: Inorganic Chemistry
publication_identifier:
issn:
- 0020-1669
- 1520-510X
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Low Temperature Emissive Cyclometalated Cobalt(III) Complexes
type: journal_article
user_id: '48467'
year: '2025'
...
---
_id: '56075'
abstract:
- lang: eng
text: An isostructural series of FeII, FeIII, and Fe(IV)complexes [Fe(ImP)2]0/+/2+
utilizing the ImP 1,1′-(1,3-phenylene)-bis(3-methyl-1-imidazol-2-ylidene) ligand,
combining N-heterocy-clic carbenes and cyclometalating functions, is presented.
The strong donor motif stabilizes the high-valent Fe(IV) oxidation state yet keeps
the FeII oxidation state accessible from the parent Fe(III)compound. Chemical
oxidation of [Fe(ImP)2]+ yields stable [FeIV(ImP)2]2+. In contrast, [FeII(ImP)2]0,
obtained by reduction,is highly sensitive toward oxygen. Exhaustive ground state
characterization by single-crystal X-ray diffraction, 1H NMR,Mössbauer spectroscopy,
temperature-dependent magnetic measurements, a combination of X-ray absorption
near edge structureand valence-to-core, as well as core-to-core X-ray emission
spectroscopy, complemented by detailed density functional theory (DFT) analysis,
reveals that the three complexes[Fe(ImP)2]0/+/2+ can be unequivocally attributed
to low-spin d6, d5, and d4 complexes. The excited state landscape of the Fe(II)
and Fe(IV) complexes is characterized by short-lived 3MLCT and 3LMCT states, with
lifetimes of 5.1 and 1.4 ps, respectively. In the FeII-compound, an energetically
low-lying MC state leads to fast deactivation of the MLCT state. The distorted
square-pyramidal state, where one carbene is dissociated, can not only relax into
the ground state, but also into a singlet dissociated state. Its formation was
investigated with time-dependent optical spectroscopy, while insights into its
structure were gained by NMR spectroscopy.
author:
- first_name: Jakob
full_name: Steube, Jakob
id: '40342'
last_name: Steube
orcid: 0000-0003-3178-4429
- first_name: Lorena
full_name: Fritsch, Lorena
id: '44418'
last_name: Fritsch
- first_name: Ayla
full_name: Kruse, Ayla
last_name: Kruse
- first_name: Olga S.
full_name: Bokareva, Olga S.
last_name: Bokareva
- first_name: Serhiy
full_name: Demeshko, Serhiy
last_name: Demeshko
- first_name: Hossam
full_name: Elgabarty, Hossam
id: '60250'
last_name: Elgabarty
orcid: 0000-0002-4945-1481
- first_name: Roland
full_name: Schoch, Roland
id: '48467'
last_name: Schoch
orcid: 0000-0003-2061-7289
- first_name: Mohammad
full_name: Alaraby, Mohammad
last_name: Alaraby
- first_name: Hans
full_name: Egold, Hans
id: '101'
last_name: Egold
- first_name: Bastian Johannes
full_name: Bracht, Bastian Johannes
id: '86707'
last_name: Bracht
- first_name: Lennart
full_name: Schmitz, Lennart
id: '53140'
last_name: Schmitz
- first_name: Stephan
full_name: Hohloch, Stephan
last_name: Hohloch
- first_name: Thomas D.
full_name: Kühne, Thomas D.
last_name: Kühne
- first_name: Franc
full_name: Meyer, Franc
last_name: Meyer
- first_name: Oliver
full_name: Kühn, Oliver
last_name: Kühn
- first_name: Stefan
full_name: Lochbrunner, Stefan
last_name: Lochbrunner
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
citation:
ama: Steube J, Fritsch L, Kruse A, et al. Isostructural Series of a Cyclometalated
Iron Complex in Three Oxidation States. Inorganic Chemistry. Published
online 2024. doi:10.1021/acs.inorgchem.4c02576
apa: Steube, J., Fritsch, L., Kruse, A., Bokareva, O. S., Demeshko, S., Elgabarty,
H., Schoch, R., Alaraby, M., Egold, H., Bracht, B. J., Schmitz, L., Hohloch, S.,
Kühne, T. D., Meyer, F., Kühn, O., Lochbrunner, S., & Bauer, M. (2024). Isostructural
Series of a Cyclometalated Iron Complex in Three Oxidation States. Inorganic
Chemistry. https://doi.org/10.1021/acs.inorgchem.4c02576
bibtex: '@article{Steube_Fritsch_Kruse_Bokareva_Demeshko_Elgabarty_Schoch_Alaraby_Egold_Bracht_et
al._2024, title={Isostructural Series of a Cyclometalated Iron Complex in Three
Oxidation States}, DOI={10.1021/acs.inorgchem.4c02576},
journal={Inorganic Chemistry}, publisher={American Chemical Society (ACS)}, author={Steube,
Jakob and Fritsch, Lorena and Kruse, Ayla and Bokareva, Olga S. and Demeshko,
Serhiy and Elgabarty, Hossam and Schoch, Roland and Alaraby, Mohammad and Egold,
Hans and Bracht, Bastian Johannes and et al.}, year={2024} }'
chicago: Steube, Jakob, Lorena Fritsch, Ayla Kruse, Olga S. Bokareva, Serhiy Demeshko,
Hossam Elgabarty, Roland Schoch, et al. “Isostructural Series of a Cyclometalated
Iron Complex in Three Oxidation States.” Inorganic Chemistry, 2024. https://doi.org/10.1021/acs.inorgchem.4c02576.
ieee: 'J. Steube et al., “Isostructural Series of a Cyclometalated Iron Complex
in Three Oxidation States,” Inorganic Chemistry, 2024, doi: 10.1021/acs.inorgchem.4c02576.'
mla: Steube, Jakob, et al. “Isostructural Series of a Cyclometalated Iron Complex
in Three Oxidation States.” Inorganic Chemistry, American Chemical Society
(ACS), 2024, doi:10.1021/acs.inorgchem.4c02576.
short: J. Steube, L. Fritsch, A. Kruse, O.S. Bokareva, S. Demeshko, H. Elgabarty,
R. Schoch, M. Alaraby, H. Egold, B.J. Bracht, L. Schmitz, S. Hohloch, T.D. Kühne,
F. Meyer, O. Kühn, S. Lochbrunner, M. Bauer, Inorganic Chemistry (2024).
date_created: 2024-09-05T11:34:20Z
date_updated: 2025-08-15T12:17:35Z
department:
- _id: '306'
doi: 10.1021/acs.inorgchem.4c02576
keyword:
- Photo
language:
- iso: eng
publication: Inorganic Chemistry
publication_identifier:
issn:
- 0020-1669
- 1520-510X
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Isostructural Series of a Cyclometalated Iron Complex in Three Oxidation States
type: journal_article
user_id: '48467'
year: '2024'
...
---
_id: '54024'
abstract:
- lang: eng
text: Transition metal complexes, particularly copper hydrides, play an important
role in various catalytic processes and molecular inorganic chemistry. This study
employs synchrotron hard X‐ray spectroscopy to gain insights into the geometric
and electronic properties of copper hydrides as potential catalysts for CO2 hydrogenation.
The potential of high energy resolution X‐ray absorption near‐edge structure (HERFD‐XANES)
and valence‐to‐core X‐ray emission (VtC‐XES) is demonstrated with measurement
on Stryker's reagent (Cu6H6) and [Cu3(μ3‐H)(dpmppe)2](PF6)2 (Cu3H), alongside
a non‐hydride copper compound (Cu‐I). The XANES analysis reveals that coordination
geometries strongly influence the spectra, providing only indirect details about
hydride coordination. The VtC‐XES analysis exhibits a distinct signal around 8975
eV, offering a diagnostic tool to identify hydride ligands. Theoretical calculations
support and extend these findings by comparing hydride‐containing complexes with
their hydride‐free counterparts.
article_type: original
author:
- first_name: Lorena
full_name: Fritsch, Lorena
id: '44418'
last_name: Fritsch
- first_name: Pia
full_name: Rehsies, Pia
id: '46959'
last_name: Rehsies
- first_name: Wael
full_name: Barakat, Wael
last_name: Barakat
- first_name: Deven P.
full_name: Estes, Deven P.
last_name: Estes
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
citation:
ama: Fritsch L, Rehsies P, Barakat W, Estes DP, Bauer M. Detection and Characterization
of Hydride Ligands in Copper Complexes by Hard X‐ray Spectroscopy. Chemistry
– A European Journal. 2024;30(36). doi:10.1002/chem.202400357
apa: Fritsch, L., Rehsies, P., Barakat, W., Estes, D. P., & Bauer, M. (2024).
Detection and Characterization of Hydride Ligands in Copper Complexes by Hard
X‐ray Spectroscopy. Chemistry – A European Journal, 30(36). https://doi.org/10.1002/chem.202400357
bibtex: '@article{Fritsch_Rehsies_Barakat_Estes_Bauer_2024, title={Detection and
Characterization of Hydride Ligands in Copper Complexes by Hard X‐ray Spectroscopy},
volume={30}, DOI={10.1002/chem.202400357},
number={36}, journal={Chemistry – A European Journal}, publisher={Wiley}, author={Fritsch,
Lorena and Rehsies, Pia and Barakat, Wael and Estes, Deven P. and Bauer, Matthias},
year={2024} }'
chicago: Fritsch, Lorena, Pia Rehsies, Wael Barakat, Deven P. Estes, and Matthias
Bauer. “Detection and Characterization of Hydride Ligands in Copper Complexes
by Hard X‐ray Spectroscopy.” Chemistry – A European Journal 30, no. 36
(2024). https://doi.org/10.1002/chem.202400357.
ieee: 'L. Fritsch, P. Rehsies, W. Barakat, D. P. Estes, and M. Bauer, “Detection
and Characterization of Hydride Ligands in Copper Complexes by Hard X‐ray Spectroscopy,”
Chemistry – A European Journal, vol. 30, no. 36, 2024, doi: 10.1002/chem.202400357.'
mla: Fritsch, Lorena, et al. “Detection and Characterization of Hydride Ligands
in Copper Complexes by Hard X‐ray Spectroscopy.” Chemistry – A European Journal,
vol. 30, no. 36, Wiley, 2024, doi:10.1002/chem.202400357.
short: L. Fritsch, P. Rehsies, W. Barakat, D.P. Estes, M. Bauer, Chemistry – A European
Journal 30 (2024).
date_created: 2024-05-07T08:41:11Z
date_updated: 2025-08-15T12:51:10Z
department:
- _id: '306'
doi: 10.1002/chem.202400357
intvolume: ' 30'
issue: '36'
keyword:
- Xray
language:
- iso: eng
publication: Chemistry – A European Journal
publication_identifier:
issn:
- 0947-6539
- 1521-3765
publication_status: published
publisher: Wiley
status: public
title: Detection and Characterization of Hydride Ligands in Copper Complexes by Hard
X‐ray Spectroscopy
type: journal_article
user_id: '48467'
volume: 30
year: '2024'
...
---
_id: '46547'
author:
- first_name: Andrea
full_name: Rogolino, Andrea
last_name: Rogolino
- first_name: José B. G.
full_name: Filho, José B. G.
last_name: Filho
- first_name: Lorena
full_name: Fritsch, Lorena
id: '44418'
last_name: Fritsch
- first_name: José D.
full_name: Ardisson, José D.
last_name: Ardisson
- first_name: Marcos A. R.
full_name: da Silva, Marcos A. R.
last_name: da Silva
- first_name: Gabriel Ali
full_name: Atta Diab, Gabriel Ali
last_name: Atta Diab
- first_name: Ingrid Fernandes
full_name: Silva, Ingrid Fernandes
last_name: Silva
- first_name: Carlos André Ferreira
full_name: Moraes, Carlos André Ferreira
last_name: Moraes
- first_name: Moacir Rossi
full_name: Forim, Moacir Rossi
last_name: Forim
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Thomas D.
full_name: Kühne, Thomas D.
last_name: Kühne
- first_name: Markus
full_name: Antonietti, Markus
last_name: Antonietti
- first_name: Ivo F.
full_name: Teixeira, Ivo F.
last_name: Teixeira
citation:
ama: Rogolino A, Filho JBG, Fritsch L, et al. Direct Synthesis of Acetone by Aerobic
Propane Oxidation Promoted by Photoactive Iron(III) Chloride under Mild Conditions.
ACS Catalysis. 2023;13(13):8662-8669. doi:10.1021/acscatal.3c02092
apa: Rogolino, A., Filho, J. B. G., Fritsch, L., Ardisson, J. D., da Silva, M. A.
R., Atta Diab, G. A., Silva, I. F., Moraes, C. A. F., Forim, M. R., Bauer, M.,
Kühne, T. D., Antonietti, M., & Teixeira, I. F. (2023). Direct Synthesis of
Acetone by Aerobic Propane Oxidation Promoted by Photoactive Iron(III) Chloride
under Mild Conditions. ACS Catalysis, 13(13), 8662–8669. https://doi.org/10.1021/acscatal.3c02092
bibtex: '@article{Rogolino_Filho_Fritsch_Ardisson_da Silva_Atta Diab_Silva_Moraes_Forim_Bauer_et
al._2023, title={Direct Synthesis of Acetone by Aerobic Propane Oxidation Promoted
by Photoactive Iron(III) Chloride under Mild Conditions}, volume={13}, DOI={10.1021/acscatal.3c02092},
number={13}, journal={ACS Catalysis}, publisher={American Chemical Society (ACS)},
author={Rogolino, Andrea and Filho, José B. G. and Fritsch, Lorena and Ardisson,
José D. and da Silva, Marcos A. R. and Atta Diab, Gabriel Ali and Silva, Ingrid
Fernandes and Moraes, Carlos André Ferreira and Forim, Moacir Rossi and Bauer,
Matthias and et al.}, year={2023}, pages={8662–8669} }'
chicago: 'Rogolino, Andrea, José B. G. Filho, Lorena Fritsch, José D. Ardisson,
Marcos A. R. da Silva, Gabriel Ali Atta Diab, Ingrid Fernandes Silva, et al. “Direct
Synthesis of Acetone by Aerobic Propane Oxidation Promoted by Photoactive Iron(III)
Chloride under Mild Conditions.” ACS Catalysis 13, no. 13 (2023): 8662–69.
https://doi.org/10.1021/acscatal.3c02092.'
ieee: 'A. Rogolino et al., “Direct Synthesis of Acetone by Aerobic Propane
Oxidation Promoted by Photoactive Iron(III) Chloride under Mild Conditions,” ACS
Catalysis, vol. 13, no. 13, pp. 8662–8669, 2023, doi: 10.1021/acscatal.3c02092.'
mla: Rogolino, Andrea, et al. “Direct Synthesis of Acetone by Aerobic Propane Oxidation
Promoted by Photoactive Iron(III) Chloride under Mild Conditions.” ACS Catalysis,
vol. 13, no. 13, American Chemical Society (ACS), 2023, pp. 8662–69, doi:10.1021/acscatal.3c02092.
short: A. Rogolino, J.B.G. Filho, L. Fritsch, J.D. Ardisson, M.A.R. da Silva, G.A.
Atta Diab, I.F. Silva, C.A.F. Moraes, M.R. Forim, M. Bauer, T.D. Kühne, M. Antonietti,
I.F. Teixeira, ACS Catalysis 13 (2023) 8662–8669.
date_created: 2023-08-16T14:44:11Z
date_updated: 2024-03-07T09:34:41Z
doi: 10.1021/acscatal.3c02092
intvolume: ' 13'
issue: '13'
keyword:
- Catalysis
- General Chemistry
- pc2-ressources
- Computing Resources Provided by the Paderborn Center for Parallel Computing
language:
- iso: eng
page: 8662-8669
publication: ACS Catalysis
publication_identifier:
issn:
- 2155-5435
- 2155-5435
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Direct Synthesis of Acetone by Aerobic Propane Oxidation Promoted by Photoactive
Iron(III) Chloride under Mild Conditions
type: journal_article
user_id: '44418'
volume: 13
year: '2023'
...
---
_id: '49608'
abstract:
- lang: eng
text: The effects of backbone amine functionalization in three new homoleptic
C^N^C type ruthenium(II) complexes bearing a tridentate bis‐imidazole‐2‐ylidene
pyridine ligand framework are characterized and studied by single crystal diffraction,
electrochemistry, optical spectroscopy and transient absorption spectroscopy in
combination with ab initio DFT calculations. Functionalization by dimethylamine
groups in 4‐position of the pyridine backbone significantly influences the properties
of the complexes as revealed by comparison with the unfunctionalized references.
As a result of the amine functionalization, a higher molar absorption coefficient
of the MLCT bands, a decreased photoluminescence quantum yield at room temperature
together with a shortened excited state lifetime but an improved photostability
is observed. Introduction of electron donating and withdrawing groups at the NHC
unit modifies the electronic and optical properties, such as the oxidation potential,
absorption and emission properties, and the lifetimes of the excited states.
author:
- first_name: Lorena
full_name: Fritsch, Lorena
id: '44418'
last_name: Fritsch
- first_name: Yannik
full_name: Vukadinovic, Yannik
last_name: Vukadinovic
- first_name: Moritz
full_name: Lang, Moritz
last_name: Lang
- first_name: Robert
full_name: Naumann, Robert
last_name: Naumann
- first_name: Maria-Sophie
full_name: Bertrams, Maria-Sophie
last_name: Bertrams
- first_name: Ayla
full_name: Kruse, Ayla
last_name: Kruse
- first_name: Roland
full_name: Schoch, Roland
id: '48467'
last_name: Schoch
orcid: 0000-0003-2061-7289
- first_name: Patrick
full_name: Müller, Patrick
id: '54037'
last_name: Müller
orcid: 0000-0003-1103-4073
- first_name: Adam
full_name: Neuba, Adam
last_name: Neuba
- first_name: Philipp
full_name: Dierks, Philipp
last_name: Dierks
- first_name: Stefan
full_name: Lochbrunner, Stefan
last_name: Lochbrunner
- first_name: Christoph
full_name: Kerzig, Christoph
last_name: Kerzig
- first_name: Katja
full_name: Heinze, Katja
last_name: Heinze
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
citation:
ama: Fritsch L, Vukadinovic Y, Lang M, et al. Chemical and photophysical properties
of amine functionalized bis‐NHC‐pyridine‐Ru(II) complexes. ChemPhotoChem.
Published online 2023. doi:10.1002/cptc.202300281
apa: Fritsch, L., Vukadinovic, Y., Lang, M., Naumann, R., Bertrams, M.-S., Kruse,
A., Schoch, R., Müller, P., Neuba, A., Dierks, P., Lochbrunner, S., Kerzig, C.,
Heinze, K., & Bauer, M. (2023). Chemical and photophysical properties of amine
functionalized bis‐NHC‐pyridine‐Ru(II) complexes. ChemPhotoChem. https://doi.org/10.1002/cptc.202300281
bibtex: '@article{Fritsch_Vukadinovic_Lang_Naumann_Bertrams_Kruse_Schoch_Müller_Neuba_Dierks_et
al._2023, title={Chemical and photophysical properties of amine functionalized
bis‐NHC‐pyridine‐Ru(II) complexes}, DOI={10.1002/cptc.202300281},
journal={ChemPhotoChem}, publisher={Wiley}, author={Fritsch, Lorena and Vukadinovic,
Yannik and Lang, Moritz and Naumann, Robert and Bertrams, Maria-Sophie and Kruse,
Ayla and Schoch, Roland and Müller, Patrick and Neuba, Adam and Dierks, Philipp
and et al.}, year={2023} }'
chicago: Fritsch, Lorena, Yannik Vukadinovic, Moritz Lang, Robert Naumann, Maria-Sophie
Bertrams, Ayla Kruse, Roland Schoch, et al. “Chemical and Photophysical Properties
of Amine Functionalized Bis‐NHC‐pyridine‐Ru(II) Complexes.” ChemPhotoChem,
2023. https://doi.org/10.1002/cptc.202300281.
ieee: 'L. Fritsch et al., “Chemical and photophysical properties of amine
functionalized bis‐NHC‐pyridine‐Ru(II) complexes,” ChemPhotoChem, 2023,
doi: 10.1002/cptc.202300281.'
mla: Fritsch, Lorena, et al. “Chemical and Photophysical Properties of Amine Functionalized
Bis‐NHC‐pyridine‐Ru(II) Complexes.” ChemPhotoChem, Wiley, 2023, doi:10.1002/cptc.202300281.
short: L. Fritsch, Y. Vukadinovic, M. Lang, R. Naumann, M.-S. Bertrams, A. Kruse,
R. Schoch, P. Müller, A. Neuba, P. Dierks, S. Lochbrunner, C. Kerzig, K. Heinze,
M. Bauer, ChemPhotoChem (2023).
date_created: 2023-12-13T15:09:09Z
date_updated: 2025-08-15T13:00:34Z
department:
- _id: '306'
doi: 10.1002/cptc.202300281
keyword:
- Photo
language:
- iso: eng
publication: ChemPhotoChem
publication_identifier:
issn:
- 2367-0932
- 2367-0932
publication_status: published
publisher: Wiley
status: public
title: Chemical and photophysical properties of amine functionalized bis‐NHC‐pyridine‐Ru(II)
complexes
type: journal_article
user_id: '48467'
year: '2023'
...
---
_id: '46548'
abstract:
- lang: eng
text: The use of iron as a replacement for noble metals in photochemical
and photophysical applications is challenging due to the typically fast deactivation
of short-lived catalytically active states. Recent success of a cyclometalated
iron(III) complex utilizing a bis-tridentate ligand motif inspired the use of
phenyl-1H-pyrazole as a bidentate ligand. Five complexes using the tris(1-phenylpyrazolato-N,C2)iron(III)
complex scaffold are presented. In addition to the parent complex, four derivatives
with functionalization in the meta-position of the phenyl ring are thoroughly
investigated by single crystal diffractometry, UV-Vis-spectroscopy, and cyclic
voltammetry. Advanced X-ray spectroscopy in the form of X-ray absorption and emission
spectroscopy allows unique insights into the electronic structure as well as DFT
calculations. The ligand design leads to overlapping MLCT and LMCT absorption
bands, and emissive behavior is suppressed by low-lying MC states.
article_number: '282'
author:
- first_name: Tanja
full_name: Hirschhausen, Tanja
last_name: Hirschhausen
- first_name: Lorena
full_name: Fritsch, Lorena
id: '44418'
last_name: Fritsch
- first_name: Franziska
full_name: Lux, Franziska
last_name: Lux
- first_name: Jakob
full_name: Steube, Jakob
id: '40342'
last_name: Steube
orcid: 0000-0003-3178-4429
- first_name: Roland
full_name: Schoch, Roland
id: '48467'
last_name: Schoch
orcid: 0000-0003-2061-7289
- first_name: Adam
full_name: Neuba, Adam
last_name: Neuba
- first_name: Hans
full_name: Egold, Hans
id: '101'
last_name: Egold
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
citation:
ama: Hirschhausen T, Fritsch L, Lux F, et al. Iron(III)-Complexes with N-Phenylpyrazole-Based
Ligands. Inorganics. 2023;11(7). doi:10.3390/inorganics11070282
apa: Hirschhausen, T., Fritsch, L., Lux, F., Steube, J., Schoch, R., Neuba, A.,
Egold, H., & Bauer, M. (2023). Iron(III)-Complexes with N-Phenylpyrazole-Based
Ligands. Inorganics, 11(7), Article 282. https://doi.org/10.3390/inorganics11070282
bibtex: '@article{Hirschhausen_Fritsch_Lux_Steube_Schoch_Neuba_Egold_Bauer_2023,
title={Iron(III)-Complexes with N-Phenylpyrazole-Based Ligands}, volume={11},
DOI={10.3390/inorganics11070282},
number={7282}, journal={Inorganics}, publisher={MDPI AG}, author={Hirschhausen,
Tanja and Fritsch, Lorena and Lux, Franziska and Steube, Jakob and Schoch, Roland
and Neuba, Adam and Egold, Hans and Bauer, Matthias}, year={2023} }'
chicago: Hirschhausen, Tanja, Lorena Fritsch, Franziska Lux, Jakob Steube, Roland
Schoch, Adam Neuba, Hans Egold, and Matthias Bauer. “Iron(III)-Complexes with
N-Phenylpyrazole-Based Ligands.” Inorganics 11, no. 7 (2023). https://doi.org/10.3390/inorganics11070282.
ieee: 'T. Hirschhausen et al., “Iron(III)-Complexes with N-Phenylpyrazole-Based
Ligands,” Inorganics, vol. 11, no. 7, Art. no. 282, 2023, doi: 10.3390/inorganics11070282.'
mla: Hirschhausen, Tanja, et al. “Iron(III)-Complexes with N-Phenylpyrazole-Based
Ligands.” Inorganics, vol. 11, no. 7, 282, MDPI AG, 2023, doi:10.3390/inorganics11070282.
short: T. Hirschhausen, L. Fritsch, F. Lux, J. Steube, R. Schoch, A. Neuba, H. Egold,
M. Bauer, Inorganics 11 (2023).
date_created: 2023-08-16T14:44:37Z
date_updated: 2025-08-15T12:54:21Z
doi: 10.3390/inorganics11070282
intvolume: ' 11'
issue: '7'
keyword:
- Photo
language:
- iso: eng
publication: Inorganics
publication_identifier:
issn:
- 2304-6740
publication_status: published
publisher: MDPI AG
status: public
title: Iron(III)-Complexes with N-Phenylpyrazole-Based Ligands
type: journal_article
user_id: '48467'
volume: 11
year: '2023'
...
---
_id: '41011'
abstract:
- lang: eng
text: The controlled assembly of well-defined planar nanoclusters from molecular
precursors is synthetically challenging and often plagued by the predominant formation
of 3D-structures and nanoparticles. Herein, we report planar iron hydride nanoclusters
from reactions of main group element hydrides with iron(II) bis(hexamethyldisilazide).
The structures and properties of isolated Fe4, Fe6, and Fe7 nanoplatelets and
calculated intermediates enable an unprecedented insight into the underlying building
principle and growth mechanism of iron clusters, metal monolayers, and nanoparticles.
article_type: original
author:
- first_name: Uttam
full_name: Chakraborty, Uttam
last_name: Chakraborty
- first_name: Patrick
full_name: Bügel, Patrick
last_name: Bügel
- first_name: Lorena
full_name: Fritsch, Lorena
id: '44418'
last_name: Fritsch
- first_name: Florian
full_name: Weigend, Florian
last_name: Weigend
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Axel
full_name: Jacobi von Wangelin, Axel
last_name: Jacobi von Wangelin
citation:
ama: 'Chakraborty U, Bügel P, Fritsch L, Weigend F, Bauer M, Jacobi von Wangelin
A. Planar Iron Hydride Nanoclusters: Combined Spectroscopic and Theoretical Insights
into Structures and Building Principles. ChemistryOpen. 2021;10(2):265-271.
doi:10.1002/open.202000307'
apa: 'Chakraborty, U., Bügel, P., Fritsch, L., Weigend, F., Bauer, M., & Jacobi
von Wangelin, A. (2021). Planar Iron Hydride Nanoclusters: Combined Spectroscopic
and Theoretical Insights into Structures and Building Principles. ChemistryOpen,
10(2), 265–271. https://doi.org/10.1002/open.202000307'
bibtex: '@article{Chakraborty_Bügel_Fritsch_Weigend_Bauer_Jacobi von Wangelin_2021,
title={Planar Iron Hydride Nanoclusters: Combined Spectroscopic and Theoretical
Insights into Structures and Building Principles}, volume={10}, DOI={10.1002/open.202000307},
number={2}, journal={ChemistryOpen}, publisher={Wiley}, author={Chakraborty, Uttam
and Bügel, Patrick and Fritsch, Lorena and Weigend, Florian and Bauer, Matthias
and Jacobi von Wangelin, Axel}, year={2021}, pages={265–271} }'
chicago: 'Chakraborty, Uttam, Patrick Bügel, Lorena Fritsch, Florian Weigend, Matthias
Bauer, and Axel Jacobi von Wangelin. “Planar Iron Hydride Nanoclusters: Combined
Spectroscopic and Theoretical Insights into Structures and Building Principles.”
ChemistryOpen 10, no. 2 (2021): 265–71. https://doi.org/10.1002/open.202000307.'
ieee: 'U. Chakraborty, P. Bügel, L. Fritsch, F. Weigend, M. Bauer, and A. Jacobi
von Wangelin, “Planar Iron Hydride Nanoclusters: Combined Spectroscopic and Theoretical
Insights into Structures and Building Principles,” ChemistryOpen, vol.
10, no. 2, pp. 265–271, 2021, doi: 10.1002/open.202000307.'
mla: 'Chakraborty, Uttam, et al. “Planar Iron Hydride Nanoclusters: Combined Spectroscopic
and Theoretical Insights into Structures and Building Principles.” ChemistryOpen,
vol. 10, no. 2, Wiley, 2021, pp. 265–71, doi:10.1002/open.202000307.'
short: U. Chakraborty, P. Bügel, L. Fritsch, F. Weigend, M. Bauer, A. Jacobi von
Wangelin, ChemistryOpen 10 (2021) 265–271.
date_created: 2023-01-30T17:00:36Z
date_updated: 2023-01-31T08:07:01Z
department:
- _id: '35'
- _id: '306'
doi: 10.1002/open.202000307
intvolume: ' 10'
issue: '2'
keyword:
- General Chemistry
language:
- iso: eng
page: 265-271
publication: ChemistryOpen
publication_identifier:
issn:
- 2191-1363
- 2191-1363
publication_status: published
publisher: Wiley
status: public
title: 'Planar Iron Hydride Nanoclusters: Combined Spectroscopic and Theoretical Insights
into Structures and Building Principles'
type: journal_article
user_id: '48467'
volume: 10
year: '2021'
...
---
_id: '46546'
author:
- first_name: Yannik
full_name: Vukadinovic, Yannik
last_name: Vukadinovic
- first_name: Lukas
full_name: Burkhardt, Lukas
id: '54038'
last_name: Burkhardt
orcid: 0000-0003-0747-9811
- first_name: Ayla
full_name: Päpcke, Ayla
last_name: Päpcke
- first_name: Anabel
full_name: Miletic, Anabel
last_name: Miletic
- first_name: Lorena
full_name: Fritsch, Lorena
id: '44418'
last_name: Fritsch
- first_name: Björn
full_name: Altenburger, Björn
last_name: Altenburger
- first_name: Roland
full_name: Schoch, Roland
id: '48467'
last_name: Schoch
orcid: 0000-0003-2061-7289
- first_name: Adam
full_name: Neuba, Adam
last_name: Neuba
- first_name: Stefan
full_name: Lochbrunner, Stefan
last_name: Lochbrunner
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
citation:
ama: 'Vukadinovic Y, Burkhardt L, Päpcke A, et al. When Donors Turn into Acceptors:
Ground and Excited State Properties of FeII Complexes with Amine-Substituted
Tridentate Bis-imidazole-2-ylidene Pyridine Ligands. Inorganic Chemistry.
2020;59(13):8762-8774. doi:10.1021/acs.inorgchem.0c00393'
apa: 'Vukadinovic, Y., Burkhardt, L., Päpcke, A., Miletic, A., Fritsch, L., Altenburger,
B., Schoch, R., Neuba, A., Lochbrunner, S., & Bauer, M. (2020). When Donors
Turn into Acceptors: Ground and Excited State Properties of FeII Complexes
with Amine-Substituted Tridentate Bis-imidazole-2-ylidene Pyridine Ligands. Inorganic
Chemistry, 59(13), 8762–8774. https://doi.org/10.1021/acs.inorgchem.0c00393'
bibtex: '@article{Vukadinovic_Burkhardt_Päpcke_Miletic_Fritsch_Altenburger_Schoch_Neuba_Lochbrunner_Bauer_2020,
title={When Donors Turn into Acceptors: Ground and Excited State Properties of
FeII Complexes with Amine-Substituted Tridentate Bis-imidazole-2-ylidene
Pyridine Ligands}, volume={59}, DOI={10.1021/acs.inorgchem.0c00393},
number={13}, journal={Inorganic Chemistry}, publisher={American Chemical Society
(ACS)}, author={Vukadinovic, Yannik and Burkhardt, Lukas and Päpcke, Ayla and
Miletic, Anabel and Fritsch, Lorena and Altenburger, Björn and Schoch, Roland
and Neuba, Adam and Lochbrunner, Stefan and Bauer, Matthias}, year={2020}, pages={8762–8774}
}'
chicago: 'Vukadinovic, Yannik, Lukas Burkhardt, Ayla Päpcke, Anabel Miletic, Lorena
Fritsch, Björn Altenburger, Roland Schoch, Adam Neuba, Stefan Lochbrunner, and
Matthias Bauer. “When Donors Turn into Acceptors: Ground and Excited State Properties
of FeII Complexes with Amine-Substituted Tridentate Bis-Imidazole-2-Ylidene
Pyridine Ligands.” Inorganic Chemistry 59, no. 13 (2020): 8762–74. https://doi.org/10.1021/acs.inorgchem.0c00393.'
ieee: 'Y. Vukadinovic et al., “When Donors Turn into Acceptors: Ground and
Excited State Properties of FeII Complexes with Amine-Substituted Tridentate
Bis-imidazole-2-ylidene Pyridine Ligands,” Inorganic Chemistry, vol. 59,
no. 13, pp. 8762–8774, 2020, doi: 10.1021/acs.inorgchem.0c00393.'
mla: 'Vukadinovic, Yannik, et al. “When Donors Turn into Acceptors: Ground and Excited
State Properties of FeII Complexes with Amine-Substituted Tridentate
Bis-Imidazole-2-Ylidene Pyridine Ligands.” Inorganic Chemistry, vol. 59,
no. 13, American Chemical Society (ACS), 2020, pp. 8762–74, doi:10.1021/acs.inorgchem.0c00393.'
short: Y. Vukadinovic, L. Burkhardt, A. Päpcke, A. Miletic, L. Fritsch, B. Altenburger,
R. Schoch, A. Neuba, S. Lochbrunner, M. Bauer, Inorganic Chemistry 59 (2020) 8762–8774.
date_created: 2023-08-16T14:43:12Z
date_updated: 2024-03-07T09:40:08Z
doi: 10.1021/acs.inorgchem.0c00393
intvolume: ' 59'
issue: '13'
keyword:
- Inorganic Chemistry
- Physical and Theoretical Chemistry
language:
- iso: eng
page: 8762-8774
publication: Inorganic Chemistry
publication_identifier:
issn:
- 0020-1669
- 1520-510X
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: 'When Donors Turn into Acceptors: Ground and Excited State Properties of FeII
Complexes with Amine-Substituted Tridentate Bis-imidazole-2-ylidene Pyridine Ligands'
type: journal_article
user_id: '48467'
volume: 59
year: '2020'
...
---
_id: '41032'
author:
- first_name: Bernhard J.
full_name: Gregori, Bernhard J.
last_name: Gregori
- first_name: Felix
full_name: Schwarzhuber, Felix
last_name: Schwarzhuber
- first_name: Simon
full_name: Pöllath, Simon
last_name: Pöllath
- first_name: Josef
full_name: Zweck, Josef
last_name: Zweck
- first_name: Lorena
full_name: Fritsch, Lorena
id: '44418'
last_name: Fritsch
- first_name: Roland
full_name: Schoch, Roland
id: '48467'
last_name: Schoch
orcid: 0000-0003-2061-7289
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
- first_name: Axel
full_name: Jacobi von Wangelin, Axel
last_name: Jacobi von Wangelin
citation:
ama: Gregori BJ, Schwarzhuber F, Pöllath S, et al. Stereoselective Alkyne Hydrogenation
by using a Simple Iron Catalyst. ChemSusChem. 2019;12(16):3864-3870. doi:10.1002/cssc.201900926
apa: Gregori, B. J., Schwarzhuber, F., Pöllath, S., Zweck, J., Fritsch, L., Schoch,
R., Bauer, M., & Jacobi von Wangelin, A. (2019). Stereoselective Alkyne Hydrogenation
by using a Simple Iron Catalyst. ChemSusChem, 12(16), 3864–3870.
https://doi.org/10.1002/cssc.201900926
bibtex: '@article{Gregori_Schwarzhuber_Pöllath_Zweck_Fritsch_Schoch_Bauer_Jacobi von Wangelin_2019,
title={Stereoselective Alkyne Hydrogenation by using a Simple Iron Catalyst},
volume={12}, DOI={10.1002/cssc.201900926},
number={16}, journal={ChemSusChem}, publisher={Wiley}, author={Gregori, Bernhard
J. and Schwarzhuber, Felix and Pöllath, Simon and Zweck, Josef and Fritsch, Lorena
and Schoch, Roland and Bauer, Matthias and Jacobi von Wangelin, Axel}, year={2019},
pages={3864–3870} }'
chicago: 'Gregori, Bernhard J., Felix Schwarzhuber, Simon Pöllath, Josef Zweck,
Lorena Fritsch, Roland Schoch, Matthias Bauer, and Axel Jacobi von Wangelin. “Stereoselective
Alkyne Hydrogenation by Using a Simple Iron Catalyst.” ChemSusChem 12,
no. 16 (2019): 3864–70. https://doi.org/10.1002/cssc.201900926.'
ieee: 'B. J. Gregori et al., “Stereoselective Alkyne Hydrogenation by using
a Simple Iron Catalyst,” ChemSusChem, vol. 12, no. 16, pp. 3864–3870, 2019,
doi: 10.1002/cssc.201900926.'
mla: Gregori, Bernhard J., et al. “Stereoselective Alkyne Hydrogenation by Using
a Simple Iron Catalyst.” ChemSusChem, vol. 12, no. 16, Wiley, 2019, pp.
3864–70, doi:10.1002/cssc.201900926.
short: B.J. Gregori, F. Schwarzhuber, S. Pöllath, J. Zweck, L. Fritsch, R. Schoch,
M. Bauer, A. Jacobi von Wangelin, ChemSusChem 12 (2019) 3864–3870.
date_created: 2023-01-30T17:56:44Z
date_updated: 2023-12-13T15:12:41Z
department:
- _id: '35'
- _id: '306'
doi: 10.1002/cssc.201900926
intvolume: ' 12'
issue: '16'
keyword:
- General Energy
- General Materials Science
- General Chemical Engineering
- Environmental Chemistry
language:
- iso: eng
page: 3864-3870
publication: ChemSusChem
publication_identifier:
issn:
- 1864-5631
- 1864-564X
publication_status: published
publisher: Wiley
status: public
title: Stereoselective Alkyne Hydrogenation by using a Simple Iron Catalyst
type: journal_article
user_id: '44418'
volume: 12
year: '2019'
...