3d-and 4d-metal(II) complexes of a tris(pyridyl)ethane-derived N-4 ligand – a structural study and reactivity remarks

dc.contributor.authorWiedemann, Dennis
dc.contributor.authorGrohmann, Andreas
dc.date.accessioned2016-09-13T12:02:44Z
dc.date.available2016-09-13T12:02:44Z
dc.date.issued2014
dc.description.abstractA series of complexes of the new N-4 chelate ligand L (L = 1-{6-[1,1-bis(pyridin-2-yl) ethyl] pyridin-2-yl}-N, N-dimethylmethanamine) with intermediate to late divalent transition metal ions M was obtained by the reaction between L and the respective chloride salt or similar precursor in methanol: [MCl2L] (M = Mn, Fe, Co, Ni, Zn; Ru) and [CuClL]Cl. The stereochemical characteristics of the chelate ligand were studied by means of single-crystal X-ray diffraction, and quantified on the basis of several geometric parameters, including the tetragonal distortion Sigma and the continuous symmetry measure S(O-h). The overall distortion of the coordination environment is predomi-nantly determined by the steric demand of the central ion, while electronic or other subtler influences essentially contribute to the distortion of the ligand L. Unlike similar complexes, [(MnCl2L)-Cl-II] cannot be oxidized to a manganese(III) complex by dioxygen, hydrogen peroxide, or iodosylbenzene. In [(RuCl2L)-Cl-II], one chlorido ligand can be exchanged against small p-accepting molecules such as acetonitrile or dinitrogen. L offers an environment ideal for small metal ions (0.4-0.6 angstrom), such as low-spin iron(II), which rationalizes the late onset of thermal spin crossover in the complex [(FeL)-L-II(NCS)(2)].en
dc.description.sponsorshipDFG, SFB 658, Elementarprozesse in molekularen Schaltern auf Oberflächenen
dc.identifier.eissn1521-3749
dc.identifier.issn0044-2313
dc.identifier.urihttp://depositonce.tu-berlin.de/handle/11303/5893
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-5486
dc.language.isoen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftende
dc.subject.otherN ligandsen
dc.subject.othercoordinative strainen
dc.subject.othertetradentate ligandsen
dc.subject.other3d-metal complexesen
dc.subject.otherx-ray diffractionen
dc.title3d-and 4d-metal(II) complexes of a tris(pyridyl)ethane-derived N-4 ligand – a structural study and reactivity remarksen
dc.typeArticleen
dc.type.versionacceptedVersionen
dcterms.bibliographicCitation.doi10.1002/zaac.201400047
dcterms.bibliographicCitation.issue8-9
dcterms.bibliographicCitation.journaltitleZeitschrift für anorganische und allgemeine Chemieen
dcterms.bibliographicCitation.originalpublishernameWiley-VCHen
dcterms.bibliographicCitation.originalpublisherplaceWeinheimen
dcterms.bibliographicCitation.pageend1640
dcterms.bibliographicCitation.pagestart1632
dcterms.bibliographicCitation.volume640
tub.accessrights.dnbdomain
tub.affiliationFak. 2 Mathematik und Naturwissenschaften>Inst. Chemie>FG Anorganische Chemie - Festkörper- und Materialchemiede
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Anorganische Chemie - Festkörper- und Materialchemiede
tub.affiliation.instituteInst. Chemiede
tub.publisher.universityorinstitutionTechnische Universität Berlin
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