Dechert, Sebastian

[["dc.bibliographiccitation.journal","Abstracts of Papers of the American Chemical Society"],["dc.bibliographiccitation.volume","248"],["dc.contributor.author","Schweinfurth, David"],["dc.contributor.author","Bill, Eckhard"],["dc.contributor.author","Atanasov, Mihail"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Meyer, Franc"],["dc.contributor.author","Neese, Frank"],["dc.contributor.author","Sarkar, Biprajit"],["dc.date.accessioned","2018-11-07T09:36:41Z"],["dc.date.available","2018-11-07T09:36:41Z"],["dc.date.issued","2014"],["dc.identifier.isi","000349167401162"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32675"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.publisher.place","Washington"],["dc.relation.conference","248th National Meeting of the American-Chemical-Society (ACS)"],["dc.relation.eventlocation","San Francisco, CA"],["dc.relation.issn","0065-7727"],["dc.title","Tripodal click ligands: Fine tuning of geometry and electronic structure in iron(II) complexes"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","9191"],["dc.bibliographiccitation.issue","39"],["dc.bibliographiccitation.journal","Angewandte Chemie International Edition"],["dc.bibliographiccitation.lastpage","9194"],["dc.bibliographiccitation.volume","50"],["dc.contributor.author","Albers, Antonia"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Bill, Eckhard"],["dc.contributor.author","Bothe, Eberhard"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2018-11-07T09:00:40Z"],["dc.date.available","2018-11-07T09:00:40Z"],["dc.date.issued","2011"],["dc.description.sponsorship","DFG (International Research Training Group GRK) [1422]; Cusanuswerk"],["dc.identifier.doi","10.1002/anie.201100727"],["dc.identifier.isi","000296104300035"],["dc.identifier.pmid","21919155"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24227"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1433-7851"],["dc.title","The Complete Characterization of a Reduced Biomimetic [2Fe-2S] Cluster"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1586"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","1596"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Ballmann, Joachim"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Bill, Eckhard"],["dc.contributor.author","Ryde, Ulf"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2018-11-07T11:17:13Z"],["dc.date.available","2018-11-07T11:17:13Z"],["dc.date.issued","2008"],["dc.description.abstract","A series of synthetic [2Fe-2S] complexes with terminal thiophenolate ligands and tethered ether or thioether moieties has been prepared and investigated in order to provide models for the potential interaction of additional donor atoms with the Fe atoms in biological [2Fe-2S] clusters. X-ray crystal structures have been determined for six new complexes that feature appended Et (1(C)), OMe (1(O)), or SMe (1(S)) groups, or with a methylene group (2(C)), an ether-O (2(O)), or an thioether-S (2(S)) linking two aryl group. The latter two systems provide a constrained chelate arrangement that induces secondary bonding interactions with the ether-O and thioether-S, which is confirmed by density functional theory (DFT) calculations that also reveal significant spin density on those fifth donor atoms. Structural consequences of the secondary bonding interactions are analyzed in detail, and effects on the spectroscopic and electronic properties are probed by UV-vis, Mossbauer, and (1)H NMR spectroscopy, as well by SQUID measurements and cyclic voltammetry. The potential relevance of the findings for biological [2Fe-2S] sites is considered."],["dc.identifier.doi","10.1021/ic702095a"],["dc.identifier.isi","000253428500023"],["dc.identifier.pmid","18257548"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/54757"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","0020-1669"],["dc.title","Secondary bonding interactions in biomimetic [2Fe-2S] clusters"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1134"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","JACS Au"],["dc.bibliographiccitation.lastpage","1143"],["dc.bibliographiccitation.volume","2"],["dc.contributor.author","Lohmiller, Thomas"],["dc.contributor.author","Spyra, Can-Jerome"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Bill, Eckhard"],["dc.contributor.author","Schnegg, Alexander"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2022-07-01T07:34:47Z"],["dc.date.available","2022-07-01T07:34:47Z"],["dc.date.issued","2022"],["dc.identifier.doi","10.1021/jacsau.2c00139"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112012"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-581"],["dc.relation.eissn","2691-3704"],["dc.relation.issn","2691-3704"],["dc.title","Antisymmetric Spin Exchange in a μ-1,2-Peroxodicopper(II) Complex with an Orthogonal Cu–O–O–Cu Arrangement and S = 1 Spin Ground State Characterized by THz-EPR"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","13892"],["dc.bibliographiccitation.issue","37"],["dc.bibliographiccitation.journal","Journal of the American Chemical Society"],["dc.bibliographiccitation.lastpage","13899"],["dc.bibliographiccitation.volume","135"],["dc.contributor.author","Blusch, Lina K."],["dc.contributor.author","Craigo, Kathryn E."],["dc.contributor.author","Martin-Diaconescu, Vlad"],["dc.contributor.author","McQuarters, Ashley B."],["dc.contributor.author","Bill, Eckhard"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","DeBeer, Serena"],["dc.contributor.author","Lehnert, Nicolai"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2018-11-07T09:19:51Z"],["dc.date.available","2018-11-07T09:19:51Z"],["dc.date.issued","2013"],["dc.description.abstract","The Siamese-twin porphyrin (2H(4)) is a unique pyrazole-expanded porphyrin providing two adjacent cavities each offering an {N-4} binding motif. It was previously found to form stable dicopper(II) or dinickel(II) complexes where both metal ions are nested in a porphyrin-like environment. This work addresses the rich redox chemistry of the dicopper complex 2Cu(2) that originates from the redox synergy of two proximate metal ions in combination with the potentially non-innocent expanded porphyrin ligand. Complementing previous X-ray crystallographic and SQUID data for solid material, the electronic structure of parent 2Cu(2) in solution was now investigated by MCD and EPR spectroscopy. This allowed the assignment of UV-vis absorptions and confirmed the drastic twist of the molecule with ferromagnetically coupled copper(II) ions. 2Cu(2) was found to exhibit multiple redox events in the potential range from -2.4 to +1.7 V versus Fc/Fc(+), and singly oxidized [2Cu(2)](+) as well as doubly oxidized [2Cu(2)](+) were characterized in detail by various analytical and spectroscopic methods. [2Cu(2)](+) was found by EPR spectroscopy and DFT calculations to have an S = 1/2 ground state, while [2Cu(2)](2+) is diamagnetic. Single crystal X-ray crystallography of [2Cu(2)(acetone)(2)](BF4)(2) revealed that the 2Cu(2) core is structurally invariant upon two-fold oxidation, while)(AS. measurements at the Cu K-edge for 2Cu(2) and [2Cu(2)(acetone)(2)](BF4)(2) showed that the copper ions remain in the +2 oxidation state throughout. The combined experimental and computational evidence identified the Siamese-twin porphyrin as a multi-electron redox-active ligand with hidden non-innocence. Each ligand subunit upon oxidation forms a ligand-centered radical, though the spin vanishes because of covalency and strong antiferromagnetic coupling between the ligand radical and the proximate metal ion. Complexes of the Siamese-twin porphyrin may thus serve as a valuable bioinspired platform that combines both metal-ligand and two-metal-ion cooperativities for use in multi-electron processes."],["dc.identifier.doi","10.1021/ja406176e"],["dc.identifier.isi","000330163000043"],["dc.identifier.pmid","23947544"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/28738"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","0002-7863"],["dc.title","Hidden Non-Innocence in an Expanded Porphyrin: Electronic Structure of the Siamese-Twin Porphyrin's Dicopper Complex in Different Oxidation States"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","JBIC Journal of Biological Inorganic Chemistry"],["dc.bibliographiccitation.volume","19"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Albers, Antonia"],["dc.contributor.author","Demeshko, Serhiy V."],["dc.contributor.author","Proepper, Kevin"],["dc.contributor.author","Meyer, Franc"],["dc.contributor.author","Bill, Eckhard"],["dc.date.accessioned","2018-11-07T09:43:09Z"],["dc.date.available","2018-11-07T09:43:09Z"],["dc.date.issued","2014"],["dc.identifier.isi","000332835300373"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34112"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.publisher.place","New York"],["dc.relation.conference","16th International Conference on Biological Inorganic Chemistry (ICBIC)"],["dc.relation.eventlocation","Grenoble, FRANCE"],["dc.title","Biomimetic [2Fe-2S] Clusters in Different Oxidation States"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1704"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Journal of the American Chemical Society"],["dc.bibliographiccitation.lastpage","1707"],["dc.bibliographiccitation.volume","135"],["dc.contributor.author","Albers, Antonia"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Proepper, Kevin"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Bill, Eckhard"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2018-11-07T09:28:15Z"],["dc.date.available","2018-11-07T09:28:15Z"],["dc.date.issued","2013"],["dc.description.abstract","A biomimetic [2Fe-2S] cluster has been isolated in the fully reduced diferrous form and characterized by X-ray diffraction. This completes a consistent series of synthetic analogues of protein-bound [2Fe-2S](z) redox centers (z = 2+, 1+, 0) with identical capping ligands. Fe-57 Mossbauer data of the extremely oxidation-sensitive complex compare well with those of the very few reports of all-ferrous ferredoxins and Rieske centers; they confirm the S-T = 0 ground state and establish a lower limit for the exchange coupling, -J >= 30 cm(-1)."],["dc.identifier.doi","10.1021/ja311563y"],["dc.identifier.isi","000314794400018"],["dc.identifier.pmid","23320988"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30730"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","0002-7863"],["dc.title","A Super-Reduced Diferrous [2Fe-2S] Cluster"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","10045"],["dc.bibliographiccitation.issue","40"],["dc.bibliographiccitation.journal","Angewandte Chemie International Edition"],["dc.bibliographiccitation.lastpage","10049"],["dc.bibliographiccitation.volume","51"],["dc.contributor.author","Burger, Boris"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Bill, Eckhard"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2018-11-07T09:14:55Z"],["dc.date.available","2018-11-07T09:14:55Z"],["dc.date.issued","2012"],["dc.identifier.doi","10.1002/anie.201202759"],["dc.identifier.isi","000309181700013"],["dc.identifier.pmid","22965915"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27544"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1433-7851"],["dc.title","The Carboxylate Twist: Hysteretic Bistability of a High-Spin Diiron(II) Complex Identified by Mossbauer Spectroscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","305"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Inorganic Biochemistry"],["dc.bibliographiccitation.lastpage","312"],["dc.bibliographiccitation.volume","101"],["dc.contributor.author","Ballmann, Joachim"],["dc.contributor.author","Sun, Xianru"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Bill, Eckhard"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2018-11-07T11:05:24Z"],["dc.date.available","2018-11-07T11:05:24Z"],["dc.date.issued","2007"],["dc.description.abstract","[2Fe2S] clusters with terminal N-ligation (His, Arg) and unique functions are increasingly recognized in biological systems. In this work three new [2Fe2S] clusters 1-3 with different 1,1'-dipyrrolmethane derivatives as chelating terminal ligands have been prepared and fully characterized, including by X-ray crystallography: (NEt4)(2)[L2Fe2(P-S)(2)] with L=Me2C(C4H3N)(2) (1), Ph2C(C4H3N)(2) (2), (CH2)(5)C(C4H3N)(2) (3). These systems represent rare examples of synthetic [2Fe2S] complexes with N-donor capping ligands. While geometric parameters as well as spectroscopic and electrochemical characteristics of the new complexes are as anticipated, the chelating nature of the terminal ligands in 1-3 imparts a relatively high stability that will be advantageous for reactivity studies of the [2Fe2S] core. (c) 2006 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.jinorgbio.2006.10.003"],["dc.identifier.isi","000244191400015"],["dc.identifier.pmid","17134759"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/52062"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0162-0134"],["dc.title","Relatively stable N-ligated [2Fe2S](2+) clusters with dipyrromethane capping ligands"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1738"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Angewandte Chemie International Edition"],["dc.bibliographiccitation.lastpage","1743"],["dc.bibliographiccitation.volume","54"],["dc.contributor.author","Kindermann, Nicole"],["dc.contributor.author","Bill, Eckhard"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Reijerse, Edward J."],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2018-11-07T10:01:06Z"],["dc.date.available","2018-11-07T10:01:06Z"],["dc.date.issued","2015"],["dc.description.abstract","Copper enzymes play important roles in the binding and activation of dioxygen in biological systems. Key copper/dioxygen intermediates have been identified and studied in synthetic analogues of the metalloprotein active sites, including the -(2):(2)-peroxodicopper(II) motif relevant to typeIII dicopper proteins. Herein, we report the synthesis and characterization of a bioinspired dicopper system that forms a stable -(1):(1)-peroxo complex whose Cu-O-O-Cu torsion is constrained to around 90 degrees by ligand design. This results in sizeable ferromagnetic coupling between the copper(II) ions, which is detected by magnetic measurements and HF-EPR spectroscopy. The new dicopper peroxo system is the first with a triplet ground state, and it represents a snapshot of the initial stages of O-2 binding at typeIII dicopper sites."],["dc.identifier.doi","10.1002/anie.201409709"],["dc.identifier.isi","000349209200007"],["dc.identifier.pmid","25529360"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/37944"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1521-3773"],["dc.relation.issn","1433-7851"],["dc.title","A Ferromagnetically Coupled (S=1) Peroxodicopper(II) Complex"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]