Now showing 1 - 10 of 43
  • 2012Journal Article
    [["dc.bibliographiccitation.firstpage","51"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Zeitschrift für Hochschulentwicklung"],["dc.bibliographiccitation.lastpage","59"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Blank, Jennifer"],["dc.contributor.author","Waitz, Thomas"],["dc.contributor.author","Würtele, Christian"],["dc.date.accessioned","2019-07-10T08:14:06Z"],["dc.date.available","2019-07-10T08:14:06Z"],["dc.date.issued","2012"],["dc.description.abstract","Seit Beginn des Bologna-Prozesses werden noch immer Modulpläne in verschiedenen universitären Fächern neu strukturiert und weiterentwickelt. Im Master-Studiengang Chemie an der Justus-Liebig-Universität Gießen wurde so das Projekt zum kompetenzorientierten Lernen durch Lehren in der Bioanorganik als neues Lehrformat etabliert. Die Lehrveranstaltung wurde erstmals im Sommersemester 2010 durchgeführt und bereits 2011 mit dem Hessischen Hochschulpreis für Exzellenz in der Lehre ausgezeichnet. Das besondere Merkmal des Projekts ist die Ausrichtung eines bioanorganischen Schülersymposiums, das eigenverantwortlich von den Studierenden des 2. Semesters im Master-Studiengang Chemie organisiert und durchgeführt wird. Zu diesem Symposium werden Leistungskurse Chemie und Biologie eingeladen. Durch das Prinzip des „shift from teaching to learning“ wird eine kooperative und konstruktive Auseinandersetzung mit den fachlichen Inhalten gewährleistet."],["dc.identifier.fs","593304"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/9518"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61435"],["dc.language.iso","de"],["dc.notes.intern","Merged from goescholar"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","CC BY-NC-ND 3.0"],["dc.rights.uri","http://creativecommons.org/licenses/by-nc-nd/3.0"],["dc.subject.ddc","540"],["dc.title","Das „bioanorganische Schülersymposium“: Lernen durch Lehren an der Hochschule"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2018Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","7922"],["dc.bibliographiccitation.issue","25"],["dc.bibliographiccitation.journal","Journal of the American Chemical Society"],["dc.bibliographiccitation.lastpage","7935"],["dc.bibliographiccitation.volume","140"],["dc.contributor.author","Lindley, Brian M."],["dc.contributor.author","van Alten, Richt S."],["dc.contributor.author","Finger, Markus"],["dc.contributor.author","Schendzielorz, Florian S."],["dc.contributor.author","Würtele, Christian"],["dc.contributor.author","Miller, Alexander J. M."],["dc.contributor.author","Siewert, Inke"],["dc.contributor.author","Schneider, Sven"],["dc.date.accessioned","2019-10-28T10:12:34Z"],["dc.date.available","2019-10-28T10:12:34Z"],["dc.date.issued","2018"],["dc.description.abstract","A comprehensive mechanistic study of N2 activation and splitting into terminal nitride ligands upon reduction of the rhenium dichloride complex [ReCl2(PNP)] is presented (PNP- = N(CH2CH2P tBu2)2-). Low-temperature studies using chemical reductants enabled full characterization of the N2-bridged intermediate [{(PNP)ClRe}2(N2)] and kinetic analysis of the N-N bond scission process. Controlled potential electrolysis at room temperature also resulted in formation of the nitride product [Re(N)Cl(PNP)]. This first example of molecular electrochemical N2 splitting into nitride complexes enabled the use of cyclic voltammetry (CV) methods to establish the mechanism of reductive N2 activation to form the N2-bridged intermediate. CV data was acquired under Ar and N2, and with varying chloride concentration, rhenium concentration, and N2 pressure. A series of kinetic models was vetted against the CV data using digital simulations, leading to the assignment of an ECCEC mechanism (where \"E\" is an electrochemical step and \"C\" is a chemical step) for N2 activation that proceeds via initial reduction to ReII, N2 binding, chloride dissociation, and further reduction to ReI before formation of the N2-bridged, dinuclear intermediate by comproportionation with the ReIII precursor. Experimental kinetic data for all individual steps could be obtained. The mechanism is supported by density functional theory computations, which provide further insight into the electronic structure requirements for N2 splitting in the tetragonal frameworks enforced by rigid pincer ligands."],["dc.identifier.doi","10.1021/jacs.8b03755"],["dc.identifier.pmid","29856611"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15622"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/62532"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.eissn","1520-5126"],["dc.relation.issn","0002-7863"],["dc.relation.issn","1520-5126"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.gro","cellular biophysics"],["dc.title","Mechanism of Chemical and Electrochemical N2 Splitting by a Rhenium Pincer Complex"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2016Journal Article
    [["dc.bibliographiccitation.firstpage","10411"],["dc.bibliographiccitation.issue","68"],["dc.bibliographiccitation.journal","Chemical Communications"],["dc.bibliographiccitation.lastpage","10414"],["dc.bibliographiccitation.volume","52"],["dc.contributor.author","Krick, Marcel"],["dc.contributor.author","Holstein, Julian"],["dc.contributor.author","Wuertele, Christian"],["dc.contributor.author","Clever, Guido H."],["dc.date.accessioned","2018-11-07T10:20:07Z"],["dc.date.available","2018-11-07T10:20:07Z"],["dc.date.issued","2016"],["dc.description.abstract","A series of [Pd2L4] coordination cages featuring endohedral functionalities in central backbone positions was synthesized. Although attached via C=C double bonds, the substituents behave as molecular rotors. This is explained by their pronounced donor-acceptor character which lowers rotational barriers and allows for electronic control over the spinning rates inside the cage. The dynamic behaviour of the free ligands, assembled cages and host-guest complexes is compared with the aid of NMR experiments, X-ray structure analysis and molecular modelling."],["dc.description.sponsorship","DFG [CL 489/2-1, SPP 1807, IRTG 1422]"],["dc.identifier.doi","10.1039/c6cc04155h"],["dc.identifier.isi","000382119600021"],["dc.identifier.pmid","27484435"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13745"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41811"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","1364-548X"],["dc.relation.issn","1359-7345"],["dc.rights.access","openAccess"],["dc.title","Endohedral dynamics of push-pull rotor-functionalized cages"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2018Journal Article
    [["dc.bibliographiccitation.firstpage","759"],["dc.bibliographiccitation.issue","14"],["dc.bibliographiccitation.journal","Zeitschrift für anorganische und allgemeine Chemie"],["dc.bibliographiccitation.lastpage","762"],["dc.bibliographiccitation.volume","644"],["dc.contributor.author","Alexopoulou, Konstantina I."],["dc.contributor.author","Schneider, Lars"],["dc.contributor.author","Miska, Andreas"],["dc.contributor.author","Würtele, Christian"],["dc.contributor.author","Schindler, Siegfried"],["dc.date.accessioned","2020-12-10T14:07:17Z"],["dc.date.available","2020-12-10T14:07:17Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1002/zaac.201800081"],["dc.identifier.issn","0044-2313"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/70164"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Template Synthesis of an Iron(II) Complex with a New Tridentate Macrocyclic Ligand Containing an Additional Pendant Arm"],["dc.title.alternative","Template Synthesis of an Iron(II) Complex with a New Tridentate Macrocyclic Ligand Containing an Additional Pendant Arm"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2019Journal Article
    [["dc.bibliographiccitation.firstpage","10444"],["dc.bibliographiccitation.issue","16"],["dc.bibliographiccitation.journal","Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","10453"],["dc.bibliographiccitation.volume","58"],["dc.contributor.author","Fokin, Igor"],["dc.contributor.author","Denisiuk, Alisa"],["dc.contributor.author","Würtele, Christian"],["dc.contributor.author","Siewert, Inke"],["dc.date.accessioned","2019-10-28T10:04:51Z"],["dc.date.available","2019-10-28T10:04:51Z"],["dc.date.issued","2019"],["dc.description.abstract","Herein, we describe the redox chemistry of bi- and mononuclear α-diimine-Mn(CO)3 complexes with an internal proton source in close proximity to the metal centers and their catalytic activity in the electrochemically driven CO2 reduction reactions. In order to address the impact of the two metal sites and of the proton source, we investigate a binuclear complex with phenol moiety, 1, a binuclear Mn complex with methoxyphenol unit instead, 2, and the mononuclear analogue with a phenol unit, 3. Spectroelectrochemical investigation of the complexes in dmf under a nitrogen atmosphere indicates that 1 and 3 undergo a reductive H2 formation forming [Mn2(H-1L1)(CO)6Br] and [Mn(H-1L3)(CO)3], respectively, which is redox neutral for the complex and equivalent to a deprotonation of the phenol unit. The reaction likely proceeds via internal proton transfer from the phenol moiety to the reduced metal center forming a Mn-H species. 2 dimerizes during reduction, forming [Mn2(L2)(CO)6]2, but 1 and 3 do not. Reduction of 1, 2, and 3 is accompanied by bromide loss, and the final species represent [Mn2(H-1L1)(CO)6]3-, [Mn2(L2)(CO)6]2-, and [Mn(H-1L3)(CO)3]2-, respectively. 1 and 2 are active catalysts in the electrochemical CO2 reduction reaction, whereas 3 decomposes quickly under an applied potential. Thus, the second redox active unit is crucial for enhanced stability. The proton relay in 1 alters the kinetics for the 2H+/2e- reduced products of CO2 in dmf/water mixtures. For 2, CO is the only product, whereas formate and CO are formed in similar amounts, 40% and 50%, respectively, in the presence of 1. Thus, the reaction rate for the internal proton transfer from the phenol moiety to the metal center forming the putative Mn-H species and subsequent CO2 insertion as well as the reaction rate of the reduced metal center with CO2 forming CO are similar. The overpotential with regard to the standard redox potential of CO2 to CO and the observed overall rate constant for catalysis at scan rates of 0.1 V s-1 are higher with 1 than with 2, that is, the OH group is beneficial for catalysis due to the internal proton transfer."],["dc.identifier.doi","10.1021/acs.inorgchem.9b00992"],["dc.identifier.pmid","31268703"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/62528"],["dc.language.iso","en"],["dc.relation.eissn","1520-510X"],["dc.relation.issn","0020-1669"],["dc.relation.issn","1520-510X"],["dc.title","The Impact of a Proton Relay in Binuclear α-Diimine-Mn(CO)3 Complexes on the CO2 Reduction Catalysis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2019Journal Article
    [["dc.bibliographiccitation.firstpage","4427"],["dc.bibliographiccitation.issue","30"],["dc.bibliographiccitation.journal","Chemical Communications"],["dc.bibliographiccitation.lastpage","4430"],["dc.bibliographiccitation.volume","55"],["dc.contributor.author","Bete, Sarah C."],["dc.contributor.author","Würtele, Christian"],["dc.contributor.author","Otte, Matthias"],["dc.date.accessioned","2021-06-01T10:50:51Z"],["dc.date.available","2021-06-01T10:50:51Z"],["dc.date.issued","2019"],["dc.description.abstract","An imidazole-functionalised cage is synthesised that can coordinate to Cu( i ). X-ray analysis reveals a T-shaped coordination of copper by the imidazole ligands reminiscent of the coordination geometry found in enzymatic active sites. This cage complex can catalyse the oxidation of benzylic alcohols to benzaldehydes utilizing oxygen as the terminal oxidant."],["dc.identifier.doi","10.1039/C9CC00437H"],["dc.identifier.eissn","1364-548X"],["dc.identifier.issn","1359-7345"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16218"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/86807"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.notes.intern","Merged from goescholar"],["dc.relation.eissn","1364-548X"],["dc.relation.issn","1359-7345"],["dc.rights","CC BY 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/3.0"],["dc.title","A bio-inspired imidazole-functionalised copper cage complex"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2021Journal Article
    [["dc.bibliographiccitation.artnumber","chem.202101705"],["dc.bibliographiccitation.journal","Chemistry: a European Journal"],["dc.contributor.author","Sang, Sier"],["dc.contributor.author","Unruh, Tobias"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Domenianni, Luis"],["dc.contributor.author","van Leest, Nicolaas"],["dc.contributor.author","Marquetand, Philipp"],["dc.contributor.author","Schneck, Felix"],["dc.contributor.author","Würtele, Christian"],["dc.contributor.author","de Zwaart, Felix"],["dc.contributor.author","Schneider, Sven"],["dc.date.accessioned","2021-07-05T14:57:19Z"],["dc.date.available","2021-07-05T14:57:19Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1002/chem.202101705"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/87620"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-441"],["dc.relation.eissn","1521-3765"],["dc.relation.issn","0947-6539"],["dc.title","Photo‐Initiated Cobalt Catalyzed Radical Olefin Hydrogenation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2017Journal Article
    [["dc.bibliographiccitation.firstpage","5511"],["dc.bibliographiccitation.issue","40"],["dc.bibliographiccitation.journal","Chemical Communications"],["dc.bibliographiccitation.lastpage","5514"],["dc.bibliographiccitation.volume","53"],["dc.contributor.author","Abbenseth, Josh"],["dc.contributor.author","Diefenbach, Martin"],["dc.contributor.author","Bete, Sarah C."],["dc.contributor.author","Würtele, Christian"],["dc.contributor.author","Volkmann, Christian"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Holthausen, Max C."],["dc.contributor.author","Schneider, Sven"],["dc.date.accessioned","2018-08-17T09:33:43Z"],["dc.date.accessioned","2021-10-27T13:12:42Z"],["dc.date.available","2018-08-17T09:33:43Z"],["dc.date.available","2021-10-27T13:12:42Z"],["dc.date.issued","2017"],["dc.description.abstract","Reduction of the pincer complex [OsIIICl2(PNP)] (PNP = N(CHCHPtBu2)2) affords the isolation and full characterization of an osmium(II) complex with square-planar coordination geometry, i.e. [OsIICl(PNP)]. Spectroscopic, structural and magnetic data in combination with multireference computations indicate strong temperature independent paramagnetism, which arises from an energetically well separated ground state that mixes with excited states through spin-orbit coupling."],["dc.identifier.doi","10.1039/C7CC01569K"],["dc.identifier.isi","000401602900006"],["dc.identifier.pmid","28405639"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15307"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91714"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.notes.intern","In goescholar not merged with http://resolver.sub.uni-goettingen.de/purl?gs-1/15078 but duplicate"],["dc.relation","info:eu-repo/grantAgreement/EC/H2020/646747/EU//N2FEED"],["dc.relation.eissn","1364-548X"],["dc.relation.issn","1359-7345"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject","Complex; Square-Planar; Osmium(II)"],["dc.subject.ddc","540"],["dc.title","A Square-Planar Osmium(II) Complex"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","submitted_version"],["dspace.entity.type","Publication"]]
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  • 2022Journal Article
    [["dc.bibliographiccitation.firstpage","11581"],["dc.bibliographiccitation.issue","30"],["dc.bibliographiccitation.journal","Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","11591"],["dc.bibliographiccitation.volume","61"],["dc.contributor.author","van Alten, Richt S."],["dc.contributor.author","Wieser, Philipp A."],["dc.contributor.author","Finger, Markus"],["dc.contributor.author","Abbenseth, Josh"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Würtele, Christian"],["dc.contributor.author","Siewert, Inke"],["dc.contributor.author","Schneider, Sven"],["dc.date.accessioned","2022-09-01T09:49:54Z"],["dc.date.available","2022-09-01T09:49:54Z"],["dc.date.issued","2022"],["dc.identifier.doi","10.1021/acs.inorgchem.2c00973"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/113570"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-597"],["dc.relation.eissn","1520-510X"],["dc.relation.issn","0020-1669"],["dc.title","Halide Effects in Reductive Splitting of Dinitrogen with Rhenium Pincer Complexes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2019Journal Article
    [["dc.bibliographiccitation.firstpage","448"],["dc.bibliographiccitation.journal","Polyhedron"],["dc.bibliographiccitation.lastpage","454"],["dc.bibliographiccitation.volume","171"],["dc.contributor.author","Will, Janine"],["dc.contributor.author","Würtele, Christian"],["dc.contributor.author","Becker, Jonathan"],["dc.contributor.author","Walter, Olaf"],["dc.contributor.author","Schindler, Siegfried"],["dc.date.accessioned","2020-12-10T15:20:54Z"],["dc.date.available","2020-12-10T15:20:54Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1016/j.poly.2019.07.007"],["dc.identifier.issn","0277-5387"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72845"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Synthesis, crystal structures and reactivity towards dioxygen of copper(I) complexes with tripodal aliphatic amine ligands"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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