Copper(I) Chelation by Tetradentate NSSN Donor Ligands: Reversible Oxidation but no Oxygenation

0361650 - ÚFCH JH 2012 RIV DE eng J - Journal Article
Schnödt, J. - Sieger, M. - Sarkar, B. - Fiedler, Jan - Manzur, J. - Su, Ch. Y. - Kaim, W.
Copper(I) Chelation by Tetradentate NSSN Donor Ligands: Reversible Oxidation but no Oxygenation.
Zeitschrift für anorganische und allgemeine Chemie. Roč. 637, 7-8 (2011), s. 930-934. ISSN 0044-2313. E-ISSN 1521-3749
R&D Projects: GA ČR GA203/09/0705
Institutional research plan: CEZ:AV0Z40400503
Keywords : benzimidazole ligands * coordination geometry * copper
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 1.249, year: 2011

The copper(I) complexes [Cu(L(4))](ClO(4)), L(4) = 1,6-bis(N-methyl-1H-benzimidazol-2-yl)-2,5-dithiahexane (bmbdh) or 1,7-bis(N-methyl-1H-benzimidazol-2-yl)-2,6-dithiaheptane (bmdhp) were obtained and investigated through structure analysis (bmdhp compounds), cyclic voltammetry, UV/Vis/NIR and EPR spectroelectrochemistry. Structure comparison of the complexes [Cu(bmdhp)](ClO(4)) (1) and [Cu(bmdhp)](SO(3)CF(3)) (2) with the previously reported [Cu(I)(bdhp)(H(2)O)](PF(6))(0.66)(BF(4))(0.34) (4), bdhp = 1,7-bis(1H-benzimidazol-2-yl)-2,6-dithiaheptane, with the related [Cu(I)(mmb)(2)](BF(4)) (5), mmb = 1-methyl-2-methylthiomethyl-1H-benzimidazole, with the oxidised [Cu(II)(bmdhp)(H(2)O)](ClO(4))(2) (7), and with the zinc(II) species [Zn(bmbdh)(H(2)O)(SO(3)CF(3))](SO(3)CF(3)) (8) and {[Zn(mu-bmdhp)(H(2)O)(SO(3)CF(3))](2)}(SO(3)CF(3)) (9) reveal a variety of coordination numbers, L(4) ligand coordination modes, M-N bond lengths and especially N-M-N angles...
Permanent Link: http://hdl.handle.net/11104/0198916