| A Cu(Ⅱ) Complex with IM-MeImz-к2 N,O Mode in [Cu(IM-MeImz)2]·(SCN)2: Synthesis, Crystal Structure and Magnetic Properties |
| |
| 作者单位： | WANG Yu-Fang（College of Chemistry and Chemical Engineering, Luoyang Normal University,Luoyang 471022, China） ;
WANG Li-Ya（College of Chemistry and Chemical Engineering, Luoyang Normal University,Luoyang 471022, China;New Materials and Function Coordination Chemistry laboratory, Qingdao University of Science and Technology, Qingdao, 266042,China） ; |
| |
| 基金项目： | This work was supported by the N N S F of China (No. 20471026) and the Natural Science Foundation of Henan Province (No. 0311021200) |
| |
| 摘 要： | A new copper(Ⅱ) compound with imino nitroxide radicals Cu(IM-MeImz)2]·(SCN)2 (IM-meImz =2-(5-methylimidazol-4-yl)-4,4,5,5-tetramethyl-2-imidazoline-1-oxyl) has been synthesized and characterized structurally and magnetically. It crystallizes in monoclinic, space group P21/c with a = 9.3604(7), b = 10.3012(7), c = 16.6684(12) (A), β = 105.0290(10)°, V = 1552.25(19)(A)3, C24H34CuN10O2S2, Mr = 622.27, Z = 2, Dc = 1.331 g/cm3, μ(MoKα) = 0.876 mm-1, F(000) =650, the final R = 0.0374 and wR = 0.1079. X-ray analysis demonstrates that the IM-MeImz ligand is coordinated to the copper(Ⅱ) ion as an unusual didentate chelate with a κ2 N(MeImz),O(IM) mode in the complex. The square-planar coordination sites at Cu(Ⅱ) are occupied by two O and two N atoms from the imino nitroxide radicals. The complex molecules are connected as a onedimensional polymer structure by intermolecular interactions. Magnetic measurements show that there are intramolecular antiferromagnetic interactions between the Cu(Ⅱ) ion and radicals.
|
| 关 键 词： | copper(Ⅱ) complex nitronyl nitroxide radical κ2-N O unusual mode antiferromagnetic interactions |
| 本文献已被 万方数据 等数据库收录！ |
|
