@article{40998,
  abstract     = {{Covalent organic frameworks (COFs) offer vast structural and chemical diversity enabling a wide and growing range of applications. While COFs are well-established as heterogeneous catalysts, so far, their high and ordered porosity has scarcely been utilized to its full potential when it comes to spatially confined reactions in COF pores to alter the outcome of reactions. Here, we present a highly porous and crystalline, large-pore COF as catalytic support in α,ω-diene ring-closing metathesis reactions, leading to increased macrocyclization selectivity. COF pore-wall modification by immobilization of a Grubbs-Hoveyda-type catalyst via a mild silylation reaction provides a molecularly precise heterogeneous olefin metathesis catalyst. An increased macro(mono)cyclization (MMC) selectivity over oligomerization (O) for the heterogeneous COF-catalyst (MMC:O=1.35) of up to 51 % compared to the homogeneous catalyst (MMC:O=0.90) was observed along with a substrate-size dependency in selectivity, pointing to diffusion limitations induced by the pore confinement.}},
  author       = {{Emmerling, Sebastian T. and Ziegler, Felix and Fischer, Felix R. and Schoch, Roland and Bauer, Matthias and Plietker, Bernd and Buchmeiser, Michael R. and Lotsch, Bettina V.}},
  issn         = {{0947-6539}},
  journal      = {{Chemistry – A European Journal}},
  keywords     = {{General Chemistry, Catalysis, Organic Chemistry}},
  number       = {{8}},
  publisher    = {{Wiley}},
  title        = {{{Olefin Metathesis in Confinement: Towards Covalent Organic Framework Scaffolds for Increased Macrocyclization Selectivity}}},
  doi          = {{10.1002/chem.202104108}},
  volume       = {{28}},
  year         = {{2021}},
}

@article{41003,
  abstract     = {{Combining strong σ-donating N-heterocyclic carbene ligands and π-accepting pyridine ligands with a high octahedricity in rigid iron(II) complexes increases the 3MLCT lifetime from 0.15 ps in the prototypical [Fe(tpy)2]2+ complex to 9.2 ps in [Fe(dpmi)2]2+12+. The tripodal CNN ligand dpmi (di(pyridine-2-yl)(3-methylimidazol-2-yl)methane) forms six-membered chelate rings with the iron(II) centre leading to close to 90° bite angles and enhanced iron-ligand orbital overlap}},
  author       = {{Reuter, Thomas and Kruse, Ayla and Schoch, Roland and Lochbrunner, Stefan and Bauer, Matthias and Heinze, Katja}},
  issn         = {{1359-7345}},
  journal      = {{Chemical Communications}},
  keywords     = {{Materials Chemistry, Metals and Alloys, Surfaces, Coatings and Films, General Chemistry, Ceramics and Composites, Electronic, Optical and Magnetic Materials, Catalysis}},
  number       = {{61}},
  pages        = {{7541--7544}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Higher MLCT lifetime of carbene iron(<scp>ii</scp>) complexes by chelate ring expansion}}},
  doi          = {{10.1039/d1cc02173g}},
  volume       = {{57}},
  year         = {{2021}},
}

@article{40997,
  abstract     = {{On transition metals such as iron rests lots of hope to replace precious metal catalysts in the field of photochemistry for a more sustainable future. Indeed, significant progress has been made in recent years in terms of lifetime extension and emerging applications in catalysis. For this reason, recent synthetic strategies of new photoactive iron compounds, which have proved to show particularly promising properties, are reviewed here. The lifetime of the excited state serves as a key parameter for comparison with the standard ruthenium complex, [Ru(bpy)3]2+, to discuss the potential and performance of the iron complexes. This approach is complemented by a more holistic examination of the sustainability of such a substitution strategy in order to answer the question: when or at which point can we assume that iron represents a more sustainable alternative for noble metals in photochemical applications?}},
  author       = {{Dierks, Philipp and Vukadinovic, Yannik and Bauer, Matthias}},
  issn         = {{2052-1553}},
  journal      = {{Inorganic Chemistry Frontiers}},
  keywords     = {{Inorganic Chemistry}},
  number       = {{2}},
  pages        = {{206--220}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Photoactive iron complexes: more sustainable, but still a challenge}}},
  doi          = {{10.1039/d1qi01112j}},
  volume       = {{9}},
  year         = {{2021}},
}

@article{41000,
  abstract     = {{Metal-catalyzed C−H activations are environmentally and economically attractive synthetic strategies for the construction of functional molecules as they obviate the need for pre-functionalized substrates and minimize waste generation. Great challenges reside in the control of selectivities, the utilization of unbiased hydrocarbons, and the operation of atom-economical dehydrocoupling mechanisms. An especially mild borylation of benzylic CH bonds was developed with the ligand-free pre-catalyst Co[N(SiMe3)2]2 and the bench-stable and inexpensive borylation reagent B2pin2 that produces H2 as the only by-product. A full set of kinetic, spectroscopic, and preparative mechanistic studies are indicative of a tandem catalysis mechanism of CH-borylation and dehydrocoupling via molecular CoI catalysts.}},
  author       = {{Ghosh, Pradip and Schoch, Roland and Bauer, Matthias and Jacobi von Wangelin, Axel}},
  issn         = {{1433-7851}},
  journal      = {{Angewandte Chemie International Edition}},
  keywords     = {{General Chemistry, Catalysis}},
  number       = {{1}},
  publisher    = {{Wiley}},
  title        = {{{Selective Benzylic CH‐Borylations by Tandem Cobalt Catalysis}}},
  doi          = {{10.1002/anie.202110821}},
  volume       = {{61}},
  year         = {{2021}},
}

@article{41013,
  abstract     = {{Within this article, it is shown that an electrochemical defluorination and additional fluorination of Ruddlesden–Popper-type La2NiO3F2 is possible within all-solid-state fluoride-ion batteries. Structural changes within the reduced and oxidized phases have been examined by X-ray diffraction studies at different states of charging and discharging. The synthesis of the oxidized phase La2NiO3F2+x proved to be successful by structural analysis using both X-ray powder diffraction and automated electron diffraction tomography techniques. The structural reversibility on re-fluorinating and re-defluorinating is also demonstrated. Moreover, the influence of different sequences of consecutive reduction and oxidation steps on the formed phases has been investigated. The observed structural changes have been compared to changes in phases obtained via other topochemical modification approaches such as hydride-based reduction and oxidative fluorination using F2 gas, highlighting the potential of such electrochemical reactions as alternative synthesis routes. Furthermore, the electrochemical routes represent safe and controllable synthesis approaches for novel phases, which cannot be synthesized via other topochemical methods. Additionally, side reactions, occurring alongside the desired electrochemical reactions, have been addressed and the cycling performance has been studied.}},
  author       = {{Wissel, Kerstin and Schoch, Roland and Vogel, Tobias and Donzelli, Manuel and Matveeva, Galina and Kolb, Ute and Bauer, Matthias and Slater, Peter R. and Clemens, Oliver}},
  issn         = {{0897-4756}},
  journal      = {{Chemistry of Materials}},
  keywords     = {{Materials Chemistry, General Chemical Engineering, General Chemistry}},
  number       = {{2}},
  pages        = {{499--512}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Electrochemical Reduction and Oxidation of Ruddlesden–Popper-Type La<sub>2</sub>NiO<sub>3</sub>F<sub>2</sub> within Fluoride-Ion Batteries}}},
  doi          = {{10.1021/acs.chemmater.0c01762}},
  volume       = {{33}},
  year         = {{2021}},
}

@article{41010,
  abstract     = {{We present the η3-coordination of the 2-phosphaethynthiolate anion in the complex (PN)2La(SCP) (2) [PN=N-(2-(diisopropylphosphanyl)-4-methylphenyl)-2,4,6-trimethylanilide)]. Structural comparison with dinuclear thiocyanate-bridged (PN)2La(μ-1,3-SCN)2La(PN)2 (3) and azide-bridged (PN)2La(μ-1,3-N3)2La(PN)2 (4) complexes indicates that the [SCP]− coordination mode is mainly governed by electronic, rather than steric factors. Quantum mechanical investigations reveal large contributions of the antibonding π*-orbital of the [SCP]− ligand to the LUMO of complex 2, rendering it the ideal precursor for the first functionalization of the [SCP]− anion. Complex 2 was therefore reacted with CAACs which induced a selective rearrangement of the [SCP]− ligand to form the first CAAC stabilized group 15–group 16 fulminate-type complexes (PN)2La{SPC(RCAAC)} (5 a,b, R=Ad, Me). A detailed reaction mechanism for the SCP-to-SPC isomerization is proposed based on DFT calculations.}},
  author       = {{Watt, Fabian A. and Burkhardt, Lukas and Schoch, Roland and Mitzinger, Stefan and Bauer, Matthias and Weigend, Florian and Goicoechea, Jose M. and Tambornino, Frank and Hohloch, Stephan}},
  issn         = {{1433-7851}},
  journal      = {{Angewandte Chemie International Edition}},
  keywords     = {{General Chemistry, Catalysis}},
  number       = {{17}},
  pages        = {{9534--9539}},
  publisher    = {{Wiley}},
  title        = {{{η            <sup>3</sup>            ‐Coordination and Functionalization of the 2‐Phosphaethynthiolate Anion at Lanthanum(III)**}}},
  doi          = {{10.1002/anie.202100559}},
  volume       = {{60}},
  year         = {{2021}},
}

@article{41012,
  abstract     = {{Here we explore the electronic structure of the diiron complex [(dppf)Fe(CO)3]0/+ [10/+; dppf = 1,1′-bis(diphenylphosphino)ferrocene] in two oxidation states by an advanced multitechnique experimental approach. A combination of magnetic circular dichroism, X-ray absorption and emission, high-frequency electron paramagnetic resonance (EPR), and Mössbauer spectroscopies is used to establish that oxidation of 10 occurs on the carbonyl iron ion, resulting in a low-spin iron(I) ion. It is shown that an unequivocal result is obtained by combining several methods. Compound 1+ displays slow spin dynamics, which is used here to study its geometric structure by means of pulsed EPR methods. Surprisingly, these data show an association of the tetrakis[3,5-bis(trifluoromethylphenyl)]borate counterion with 1+.}},
  author       = {{Winkler, Mario and Schnierle, Marc and Ehrlich, Felix and Mehnert, Kim-Isabelle and Hunger, David and Sheveleva, Alena M. and Burkhardt, Lukas and Bauer, Matthias and Tuna, Floriana and Ringenberg, Mark R. and van Slageren, Joris}},
  issn         = {{0020-1669}},
  journal      = {{Inorganic Chemistry}},
  keywords     = {{Inorganic Chemistry, Physical and Theoretical Chemistry}},
  number       = {{5}},
  pages        = {{2856--2865}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Electronic Structure of a Diiron Complex: A Multitechnique Experimental Study of [(dppf)Fe(CO) <sub>3</sub>]<sup>+/0</sup>}}},
  doi          = {{10.1021/acs.inorgchem.0c03259}},
  volume       = {{60}},
  year         = {{2021}},
}

@article{41011,
  abstract     = {{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.}},
  author       = {{Chakraborty, Uttam and Bügel, Patrick and Fritsch, Lorena and Weigend, Florian and Bauer, Matthias and Jacobi von Wangelin, Axel}},
  issn         = {{2191-1363}},
  journal      = {{ChemistryOpen}},
  keywords     = {{General Chemistry}},
  number       = {{2}},
  pages        = {{265--271}},
  publisher    = {{Wiley}},
  title        = {{{Planar Iron Hydride Nanoclusters: Combined Spectroscopic and Theoretical Insights into Structures and Building Principles}}},
  doi          = {{10.1002/open.202000307}},
  volume       = {{10}},
  year         = {{2021}},
}

@book{40920,
  editor       = {{Standke, Jan and Topalovic, Elvira}},
  issn         = {{0418-9426}},
  keywords     = {{General Earth and Planetary Sciences, General Environmental Science}},
  publisher    = {{Vandenhoeck & Ruprecht GmbH & Co, KG, Göttingen}},
  title        = {{{In Krisen erzählen – von Krisen erzählen. Sprachliche, literarische und mediale Dimensionen.}}},
  doi          = {{10.14220/mdge.2021.68.2.0}},
  volume       = {{68}},
  year         = {{2021}},
}

@inbook{40494,
  author       = {{Sackel, Johanna and Wöbse, Anna-Katharina}},
  booktitle    = {{A Cultural History of the Sea in the Global Age}},
  editor       = {{Torma, Franziska}},
  isbn         = {{9781474299107}},
  publisher    = {{Bloomsbury Academic}},
  title        = {{{Networks}}},
  volume       = {{6}},
  year         = {{2021}},
}

@book{37092,
  editor       = {{Plien, Christian and Topalovic, Elvira}},
  issn         = {{0418-9426}},
  keywords     = {{General Earth and Planetary Sciences, General Environmental Science}},
  publisher    = {{Vandenhoeck & Ruprecht GmbH & Co, KG, Göttingen}},
  title        = {{{Mehrdeutigkeiten}}},
  doi          = {{10.14220/mdge.2021.68.4.0}},
  volume       = {{68}},
  year         = {{2021}},
}

@inproceedings{23992,
  author       = {{Adelt, Peer and Koppelmann, Bastian and Müller, Wolfgang and Scheytt, Christoph}},
  booktitle    = {{Workshop Methoden und Beschreibungssprachen zur Modellierung und Verifikation von Schaltungen und Systemen (MBMV 2021)}},
  title        = {{{Register and Instruction Coverage Analysis for Different RISC-V ISA Modules}}},
  year         = {{2021}},
}

@article{37185,
  abstract     = {{<jats:p>Social robots have emerged as a new digital technology that is increasingly being implemented in the educational landscape. While social robots could be deployed to assist young children with their learning in a variety of different ways, the typical approach in educational practices is to supplement the learning process rather than to replace the human caregiver, e.g., the teacher, parent, educator or therapist. When functioning in the role of an educational assistant, social robots will likely constitute a part of a triadic interaction with the child and the human caregiver. Surprisingly, there is little research that systematically investigates the role of the caregiver by examining the ways in which children involve or check in with them during their interaction with another partner<jats:bold>—</jats:bold>a phenomenon that is known as social referencing. In the present study, we investigated social referencing in the context of a dyadic child–robot interaction. Over the course of four sessions within our longitudinal language-learning study, we observed how 20 pre-school children aged 4–5 years checked in with their accompanying caregivers who were not actively involved in the language-learning procedure. The children participating in the study were randomly assigned to either an interaction with a social robot or a human partner. Our results revealed that all children across both conditions utilized social referencing behaviors to address their caregiver. However, we found that the children who interacted with the social robot did so significantly more frequently in each of the four sessions than those who interacted with the human partner. Further analyses showed that no significant change in their behavior over the course of the sessions could be observed. Findings are discussed with regard to the caregiver's role during children's interactions with social robots and the implications for future interaction design.</jats:p>}},
  author       = {{Tolksdorf, Nils F. and Crawshaw, Camilla E. and Rohlfing, Katharina}},
  issn         = {{2504-284X}},
  journal      = {{Frontiers in Education}},
  keywords     = {{Education}},
  publisher    = {{Frontiers Media SA}},
  title        = {{{Comparing the Effects of a Different Social Partner (Social Robot vs. Human) on Children's Social Referencing in Interaction}}},
  doi          = {{10.3389/feduc.2020.569615}},
  volume       = {{5}},
  year         = {{2021}},
}

@article{37184,
  author       = {{Rohlfing, Katharina and Mertens, Ulrich}},
  journal      = {{Frontiers in Psychology}},
  title        = {{{Progressive Reduction of Iconic Gestures Contributes to School-Aged Children’s Increased Word Production}}},
  doi          = {{10.3389/fpsyg.2021.651725}},
  year         = {{2021}},
}

@inbook{41464,
  author       = {{Pinsch, Jan Christian}},
  booktitle    = {{Musik als Lebensmittel. Kulturwissenschaftlich-theologische Rationen für ein Jahr}},
  editor       = {{Keuchen, Marion and Janus, Richard}},
  pages        = {{222 -- 226}},
  title        = {{{"Gib mir was zu trinken, ich habe Durst..." Laientheologie nach Harald Schroeter-Wittke bei den Toten Hosen}}},
  volume       = {{8}},
  year         = {{2021}},
}

@misc{41469,
  author       = {{Pinsch, Jan Christian and Lerke, Stephanie}},
  booktitle    = {{Paderborner Historische Mitteilungen}},
  pages        = {{114 -- 117}},
  title        = {{{Rezension zu Oliver Arnold, „Entjudung“ von Theologie und Kirche. Das Eisenacher „Institut zur Erforschung und Beseitigung des jüdischen Einflusses“ auf das deutsche kirchliche Leben 1939-1945, Bd. 6 Christentum und Zeitgeschichte, Leipzig 2020}}},
  volume       = {{34}},
  year         = {{2021}},
}

@article{41466,
  author       = {{Pinsch, Jan Christian}},
  journal      = {{Paderborner Historische Mitteilungen}},
  pages        = {{38 -- 53}},
  title        = {{{Viel Lärm um die Stille. Die Geschichte des Raums der Stille an der Universität Paderborn im Spannungsfeld zwischen Religionsfreiheit und weltanschaulicher Neutralität}}},
  volume       = {{34}},
  year         = {{2021}},
}

@inbook{41480,
  author       = {{Jacke, Christoph}},
  booktitle    = {{Medienkultur als kritische Gesellschaftsanalyse. Festschrift für Rainer Winter.}},
  editor       = {{Wieser, Matthias and Pilipets, Elena}},
  title        = {{{'Keine Gefangenen' oder 'Hyper Hyper' - Kommunikationen, Medien und Kulturen als Motoren gesellschaftlicher Transformationen.}}},
  year         = {{2021}},
}

@inbook{41483,
  author       = {{Jacke, Christoph}},
  booktitle    = {{Gehört „deutsche“ Popmusik ins Museum? Materialien zu und von der Fünften Pop-Dekadentagung}},
  editor       = {{Jogschies, Rainer}},
  title        = {{{‚Deutsche’ Pop-Rezeption – zwischen journalistischen Trivialitäten und nationalen Eigenarten? }}},
  year         = {{2021}},
}

@article{22770,
  author       = {{Gil López, Jano and Santandrea, Matteo and Roland, Ganaël and Brecht, Benjamin and Eigner, Christof and Ricken, Raimund and Quiring, Viktor and Silberhorn, Christine}},
  issn         = {{1367-2630}},
  journal      = {{New Journal of Physics}},
  title        = {{{Improved non-linear devices for quantum applications}}},
  doi          = {{10.1088/1367-2630/ac09fd}},
  year         = {{2021}},
}