--- _id: '60600' abstract: - lang: eng text: In the search for noble metal free photocatalytic systems, iron is the dream candidate. To increase excited state lifetimes of iron complexes, the multichromophoric approach is promising, combining organic chromophores with photoactive iron complexes, potentially enabling a reservoir effect. We present a series of chromophore-functionalized complexes based on the parental FeIII complex [Fe(ImP)2][PF6] (HImP = 1,1′-(1,3-phenylene)bis(3-methyl-1-imidazole-2-ylidene)). The four organic chromophores benzene, naphthalene, anthracene, and pyrene are attached to the ImP-ligand in para-position to the coordination site to systematically investigate the influence of the steric demand and electronic properties of the chromophore on charge transfer lifetimes as well as photodynamics. A thorough ground state characterization was conducted in addition to investigations of the excited state dynamics by transient absorption spectroscopy and streak camera emission measurements. The conclusions drawn are supported by extensive DFT calculations. The emission coefficients could be significantly improved by the addition of chromophores. After excitation of the complexes with larger chromophores, coplanarization of the backbone and complex motif occurs to stabilize the formal charge. This results in population of a superligand state that exhibits a much faster radiationless relaxation to the ground state compared to the parent complex, hindering a reservoir effect. article_number: acs.inorgchem.5c00526 author: - first_name: Lennart full_name: Schmitz, Lennart id: '53140' last_name: Schmitz - first_name: Miguel A. full_name: Argüello Cordero, Miguel A. last_name: Argüello Cordero - first_name: Mohammed J. full_name: Al-Marri, Mohammed J. last_name: Al-Marri - first_name: Roland full_name: Schoch, Roland id: '48467' last_name: Schoch orcid: 0000-0003-2061-7289 - first_name: Hans full_name: Egold, Hans id: '101' last_name: Egold - first_name: Adam full_name: Neuba, Adam last_name: Neuba - first_name: Jakob full_name: Steube, Jakob id: '40342' last_name: Steube orcid: 0000-0003-3178-4429 - first_name: Bastian Johannes full_name: Bracht, Bastian Johannes id: '86707' last_name: Bracht - first_name: Olga S. full_name: Bokareva, Olga S. last_name: Bokareva - 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: Schmitz L, Argüello Cordero MA, Al-Marri MJ, et al. Chromophore Induced Effects in Iron(III) Complexes. Inorganic Chemistry. Published online 2025. doi:10.1021/acs.inorgchem.5c00526 apa: Schmitz, L., Argüello Cordero, M. A., Al-Marri, M. J., Schoch, R., Egold, H., Neuba, A., Steube, J., Bracht, B. J., Bokareva, O. S., Lochbrunner, S., & Bauer, M. (2025). Chromophore Induced Effects in Iron(III) Complexes. Inorganic Chemistry, Article acs. inorgchem.5c00526. https://doi.org/10.1021/acs.inorgchem.5c00526 bibtex: '@article{Schmitz_Argüello Cordero_Al-Marri_Schoch_Egold_Neuba_Steube_Bracht_Bokareva_Lochbrunner_et al._2025, title={Chromophore Induced Effects in Iron(III) Complexes}, DOI={10.1021/acs.inorgchem.5c00526}, number={acs. inorgchem.5c00526}, journal={Inorganic Chemistry}, publisher={American Chemical Society (ACS)}, author={Schmitz, Lennart and Argüello Cordero, Miguel A. and Al-Marri, Mohammed J. and Schoch, Roland and Egold, Hans and Neuba, Adam and Steube, Jakob and Bracht, Bastian Johannes and Bokareva, Olga S. and Lochbrunner, Stefan and et al.}, year={2025} }' chicago: Schmitz, Lennart, Miguel A. Argüello Cordero, Mohammed J. Al-Marri, Roland Schoch, Hans Egold, Adam Neuba, Jakob Steube, et al. “Chromophore Induced Effects in Iron(III) Complexes.” Inorganic Chemistry, 2025. https://doi.org/10.1021/acs.inorgchem.5c00526. ieee: 'L. Schmitz et al., “Chromophore Induced Effects in Iron(III) Complexes,” Inorganic Chemistry, Art. no. acs. inorgchem.5c00526, 2025, doi: 10.1021/acs.inorgchem.5c00526.' mla: Schmitz, Lennart, et al. “Chromophore Induced Effects in Iron(III) Complexes.” Inorganic Chemistry, acs. inorgchem.5c00526, American Chemical Society (ACS), 2025, doi:10.1021/acs.inorgchem.5c00526. short: L. Schmitz, M.A. Argüello Cordero, M.J. Al-Marri, R. Schoch, H. Egold, A. Neuba, J. Steube, B.J. Bracht, O.S. Bokareva, S. Lochbrunner, M. Bauer, Inorganic Chemistry (2025). date_created: 2025-07-14T08:49:25Z date_updated: 2025-08-15T12:18:08Z department: - _id: '306' doi: 10.1021/acs.inorgchem.5c00526 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: Chromophore Induced Effects in Iron(III) Complexes type: journal_article user_id: '48467' year: '2025' ... --- _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: '56074' abstract: - lang: eng text: Effective photoinduced charge transfer makes molecular bimetallic assemblies attractive for applications as active light‐induced proton reduction systems. Developing competitive base metal dyads is mandatory for a more sustainable future. However, the electron transfer mechanisms from the photosensitizer to the proton reduction catalyst in base metal dyads remain so far unexplored. A Fe─Co dyad that exhibits photocatalytic H2 production activity is studied using femtosecond X‐ray emission spectroscopy, complemented by ultrafast optical spectroscopy and theoretical time‐dependent DFT calculations, to understand the electronic and structural dynamics after photoexcitation and during the subsequent charge transfer process from the Fe(II) photosensitizer to the cobaloxime catalyst. This novel approach enables the simultaneous measurement of the transient X‐ray emission at the iron and cobalt K‐edges in a two‐color experiment. With this methodology, the excited state dynamics are correlated to the electron transfer processes, and evidence of the Fe→Co electron transfer as an initial step of proton reduction activity is unraveled. author: - first_name: Michał full_name: Nowakowski, Michał id: '78878' last_name: Nowakowski orcid: 0000-0002-3734-7011 - first_name: Marina full_name: Huber‐Gedert, Marina last_name: Huber‐Gedert - first_name: Hossam full_name: Elgabarty, Hossam id: '60250' last_name: Elgabarty orcid: 0000-0002-4945-1481 - first_name: Aleksandr full_name: Kalinko, Aleksandr last_name: Kalinko - first_name: Jacek full_name: Kubicki, Jacek last_name: Kubicki - first_name: Ahmet full_name: Kertmen, Ahmet last_name: Kertmen - first_name: Natalia full_name: Lindner, Natalia last_name: Lindner - first_name: Dmitry full_name: Khakhulin, Dmitry last_name: Khakhulin - first_name: Frederico A. full_name: Lima, Frederico A. last_name: Lima - first_name: Tae‐Kyu full_name: Choi, Tae‐Kyu last_name: Choi - first_name: Mykola full_name: Biednov, Mykola last_name: Biednov - first_name: Lennart full_name: Schmitz, Lennart id: '53140' last_name: Schmitz - first_name: Natalia full_name: Piergies, Natalia last_name: Piergies - first_name: Peter full_name: Zalden, Peter last_name: Zalden - first_name: Katerina full_name: Kubicek, Katerina last_name: Kubicek - first_name: Angel full_name: Rodriguez‐Fernandez, Angel last_name: Rodriguez‐Fernandez - first_name: Mohammad Alaraby full_name: Salem, Mohammad Alaraby last_name: Salem - first_name: Sophie E. full_name: Canton, Sophie E. last_name: Canton - first_name: Christian full_name: Bressler, Christian last_name: Bressler - first_name: Thomas D. full_name: Kühne, Thomas D. last_name: Kühne - first_name: Wojciech full_name: Gawelda, Wojciech last_name: Gawelda - first_name: Matthias full_name: Bauer, Matthias id: '47241' last_name: Bauer orcid: 0000-0002-9294-6076 citation: ama: Nowakowski M, Huber‐Gedert M, Elgabarty H, et al. Ultrafast Two‐Color X‐Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad. Advanced Science. Published online 2024. doi:10.1002/advs.202404348 apa: Nowakowski, M., Huber‐Gedert, M., Elgabarty, H., Kalinko, A., Kubicki, J., Kertmen, A., Lindner, N., Khakhulin, D., Lima, F. A., Choi, T., Biednov, M., Schmitz, L., Piergies, N., Zalden, P., Kubicek, K., Rodriguez‐Fernandez, A., Salem, M. A., Canton, S. E., Bressler, C., … Bauer, M. (2024). Ultrafast Two‐Color X‐Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad. Advanced Science. https://doi.org/10.1002/advs.202404348 bibtex: '@article{Nowakowski_Huber‐Gedert_Elgabarty_Kalinko_Kubicki_Kertmen_Lindner_Khakhulin_Lima_Choi_et al._2024, title={Ultrafast Two‐Color X‐Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad}, DOI={10.1002/advs.202404348}, journal={Advanced Science}, publisher={Wiley}, author={Nowakowski, Michał and Huber‐Gedert, Marina and Elgabarty, Hossam and Kalinko, Aleksandr and Kubicki, Jacek and Kertmen, Ahmet and Lindner, Natalia and Khakhulin, Dmitry and Lima, Frederico A. and Choi, Tae‐Kyu and et al.}, year={2024} }' chicago: Nowakowski, Michał, Marina Huber‐Gedert, Hossam Elgabarty, Aleksandr Kalinko, Jacek Kubicki, Ahmet Kertmen, Natalia Lindner, et al. “Ultrafast Two‐Color X‐Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad.” Advanced Science, 2024. https://doi.org/10.1002/advs.202404348. ieee: 'M. Nowakowski et al., “Ultrafast Two‐Color X‐Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad,” Advanced Science, 2024, doi: 10.1002/advs.202404348.' mla: Nowakowski, Michał, et al. “Ultrafast Two‐Color X‐Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad.” Advanced Science, Wiley, 2024, doi:10.1002/advs.202404348. short: M. Nowakowski, M. Huber‐Gedert, H. Elgabarty, A. Kalinko, J. Kubicki, A. Kertmen, N. Lindner, D. Khakhulin, F.A. Lima, T. Choi, M. Biednov, L. Schmitz, N. Piergies, P. Zalden, K. Kubicek, A. Rodriguez‐Fernandez, M.A. Salem, S.E. Canton, C. Bressler, T.D. Kühne, W. Gawelda, M. Bauer, Advanced Science (2024). date_created: 2024-09-05T11:31:30Z date_updated: 2025-08-15T12:49:56Z department: - _id: '306' doi: 10.1002/advs.202404348 keyword: - Photo - Xray language: - iso: eng publication: Advanced Science publication_identifier: issn: - 2198-3844 - 2198-3844 publication_status: published publisher: Wiley status: public title: Ultrafast Two‐Color X‐Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad type: journal_article user_id: '48467' year: '2024' ... --- _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' ...