@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 La2NiO3F2 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 3 ‐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) 3]+/0}}}, doi = {{10.1021/acs.inorgchem.0c03259}}, volume = {{60}}, year = {{2021}}, } @article{41009, abstract = {{Platinum hydride species catalyze a number of interesting organic reactions. However, their reactions typically involve the use of high loadings of noble metal and are difficult to recycle, making them somewhat unsustainable. We have synthesized surface-immobilized Pt–H species via oxidative addition of surface OH groups to Pt(PtBu3)2 (1), a rarely used immobilization technique in surface organometallic chemistry. The hydride species thus made were characterized by infrared, magic-angle spinning nuclear magnetic resonance, and X-ray absorption spectroscopies and catalyzed both olefin isomerization and cycloisomerization of a 1,6 enyne (5) with a high selectivity and low Pt loading.}}, author = {{Maier, Sarah and Cronin, Steve P. and Vu Dinh, Manh-Anh and Li, Zheng and Dyballa, Michael and Nowakowski, Michal and Bauer, Matthias and Estes, Deven P.}}, issn = {{0276-7333}}, journal = {{Organometallics}}, keywords = {{Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry}}, number = {{11}}, pages = {{1751--1757}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Immobilized Platinum Hydride Species as Catalysts for Olefin Isomerizations and Enyne Cycloisomerizations}}}, doi = {{10.1021/acs.organomet.1c00216}}, volume = {{40}}, 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{41313, author = {{Steinhoff, Lena and Zondag, Marcellis M.}}, issn = {{0148-2963}}, journal = {{Journal of Business Research}}, keywords = {{Marketing}}, pages = {{70--82}}, publisher = {{Elsevier BV}}, title = {{{Loyalty programs as travel companions: Complementary service features across customer journey stages}}}, doi = {{10.1016/j.jbusres.2021.02.016}}, volume = {{129}}, year = {{2021}}, } @book{41333, editor = {{Bürgel, Christoph and Koch, Corinna and Schlaak, Claudia and Visser, Judith and Heiderich, Jens}}, publisher = {{ibidem}}, title = {{{ Zeitschrift für Romanische Sprachen und ihre Didaktik}}}, year = {{2021}}, } @misc{41283, pages = {{7--15}}, publisher = {{Stauffenburg}}, title = {{{Konstruktionen und Konstruktionslernen}}}, year = {{2021}}, } @book{41332, editor = {{Bürgel, Christoph and Koch, Corinna and Schlaak, Claudia and Visser, Judith }}, publisher = {{ibidem}}, title = {{{ Zeitschrift für Romanische Sprachen und ihre Didaktik}}}, year = {{2021}}, } @inproceedings{23995, author = {{Kruse, Stephan and Bahmanian, Meysam and Kneuper, Pascal and Kress, Christian and Kurz, Heiko G. and Schneider, Thomas and Scheytt, Christoph}}, booktitle = {{The 17th European Radar Conference}}, title = {{{Phase Noise Investigation for a Radar System with Optical Clock Distribution }}}, year = {{2021}}, } @article{41326, author = {{Wojtaszek, Klaudia and Błachucki, Wojciech and Tyrała, Krzysztof and Nowakowski, Michał and Zaja̧c, Marcin and Stȩpień, Joanna and Jagodziński, Paweł and Banaś, Dariusz and Stańczyk, Wiktoria and Czapla-Masztafiak, Joanna and Kwiatek, Wojciech M. and Szlachetko, Jakub and Wach, Anna}}, issn = {{1089-5639}}, journal = {{The Journal of Physical Chemistry A}}, keywords = {{Physical and Theoretical Chemistry}}, number = {{1}}, pages = {{50--56}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Determination of Crystal-Field Splitting Induced by Thermal Oxidation of Titanium}}}, doi = {{10.1021/acs.jpca.0c07955}}, volume = {{125}}, year = {{2021}}, } @article{37185, abstract = {{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 partnera 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.}}, 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}}, } @article{24899, abstract = {{Temperamental traits can decisively influence how children enter into social interaction with their environment. Yet, in the field of child–robot interaction, little is known about how individual differences such as shyness impact on how children interact with social robots in educational settings. The present study systematically assessed the temperament of 28 preschool children aged 4–5 years in order to investigate the role of shyness within a dyadic child–robot interaction. Over the course of four consecutive sessions, we observed how shy compared to nonshy children interacted with a social robot during a word-learning educational setting and how shyness influenced children’s learning outcomes. Overall, results suggested that shy children not only interacted differently with a robot compared to nonshy children, but also changed their behavior over the course of the sessions. Critically, shy children interacted less expressively with the robot in general. With regard to children’s language learning outcomes, shy children scored lower on an initial posttest, but were able to close this gap on a later test, resulting in all children retrieving the learned words on a similar level. When intertest learning gain was considered, regression analyses even confirmed a positive predictive role of shyness on language learning gains. Findings are discussed with regard to the role of shyness in educational settings with social robots and the implications for future interaction design.}}, author = {{Tolksdorf, Nils Frederik and Viertel, Franziska E. and Rohlfing, Katharina J.}}, issn = {{2296-9144}}, journal = {{Frontiers in Robotics and AI}}, title = {{{Do Shy Preschoolers Interact Differently When Learning Language With a Social Robot? An Analysis of Interactional Behavior and Word Learning}}}, doi = {{10.3389/frobt.2021.676123}}, year = {{2021}}, } @inbook{41375, author = {{Heidgen, Michael}}, booktitle = {{Metzler Lexikon literarischer Symbole}}, title = {{{Wurzel}}}, year = {{2021}}, } @inbook{41428, author = {{Uppenkamp, Vera and Neumann, Anna and Kammeyer, Katharina}}, booktitle = {{Musik als Lebensmittel. Kulturwissenschaftlich-theologische Rationen für ein Jahr}}, editor = {{Keuchen, Marion and Janus, Richard}}, isbn = {{978-3-643-15025-7}}, pages = {{139--147}}, publisher = {{LIT}}, title = {{{This is my Fight Song}}}, volume = {{8}}, year = {{2021}}, }