Synthesis and crystal structure of oxalato-bridged dicopper(II) complex with reduced imino nitroxide radicals
2001; Elsevier BV; Volume: 569; Issue: 1-3 Linguagem: Inglês
10.1016/s0022-2860(01)00434-3
ISSN1872-8014
AutoresLicun Li, Dai‐Zheng Liao, Lingjun Bai, Zong‐Hui Jiang, Shi‐Ping Yan,
Tópico(s)Metal complexes synthesis and properties
ResumoA new oxalato-bridged dicopper(II) complex [Cu2(μ-C2O4)(Him2-py)2(NO3)2]CH3OH has been synthesized and its crystal structure determined by X-ray diffraction methods. The imino nitroxide 2-(2′-pyridyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxyl(im2-py) is reduced in the reaction to yield 2-(2′-pyridyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-hydroxy(Him2-py). The structure consists of centrosymmetric [Cu2(μ-C2O4)(Him2-py)2(NO3)2] and one solvent methanol molecule. Each Cu(II) ion is in a distorted tetragonal pyramid environment: two nitrogen atoms from Him2-py, two oxygen atoms from the oxalate ion in the basal plane and one oxygen atom from the nitrato group in the axial position.
Referência(s)