3d-and 4d-metal(II) complexes of a tris(pyridyl)ethane-derived N-4 ligand – a structural study and reactivity remarks
| dc.contributor.author | Wiedemann, Dennis | |
| dc.contributor.author | Grohmann, Andreas | |
| dc.date.accessioned | 2016-09-13T12:02:44Z | |
| dc.date.available | 2016-09-13T12:02:44Z | |
| dc.date.issued | 2014 | |
| dc.description.abstract | A 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.sponsorship | DFG, SFB 658, Elementarprozesse in molekularen Schaltern auf Oberflächen | en |
| dc.identifier.eissn | 1521-3749 | |
| dc.identifier.issn | 0044-2313 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/5893 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-5486 | |
| dc.language.iso | en | |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject.ddc | 540 Chemie und zugeordnete Wissenschaften | de |
| dc.subject.other | N ligands | en |
| dc.subject.other | coordinative strain | en |
| dc.subject.other | tetradentate ligands | en |
| dc.subject.other | 3d-metal complexes | en |
| dc.subject.other | x-ray diffraction | en |
| dc.title | 3d-and 4d-metal(II) complexes of a tris(pyridyl)ethane-derived N-4 ligand – a structural study and reactivity remarks | en |
| dc.type | Article | en |
| dc.type.version | acceptedVersion | en |
| dcterms.bibliographicCitation.doi | 10.1002/zaac.201400047 | |
| dcterms.bibliographicCitation.issue | 8-9 | |
| dcterms.bibliographicCitation.journaltitle | Zeitschrift für anorganische und allgemeine Chemie | en |
| dcterms.bibliographicCitation.originalpublishername | Wiley-VCH | en |
| dcterms.bibliographicCitation.originalpublisherplace | Weinheim | en |
| dcterms.bibliographicCitation.pageend | 1640 | |
| dcterms.bibliographicCitation.pagestart | 1632 | |
| dcterms.bibliographicCitation.volume | 640 | |
| tub.accessrights.dnb | domain | |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Anorganische Chemie - Festkörper- und Materialchemie | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.group | FG Anorganische Chemie - Festkörper- und Materialchemie | de |
| tub.affiliation.institute | Inst. Chemie | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin |
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