A Novel Binuclear Cu(II) Complex with Nitroxide Radicals Exhibiting Ferromagnetic Interactions

作者：Liu Shang Yuan; Chen Yi Wen; Gao Dong Zhao^*

来源：Chinese Journal of Structural Chemistry, 2012, 31(1): 39-44.

• Cu(II) complex
• nitroxide radical
• crystal structure
• ferromagnetic interaction

A new binuclear Cu(II) complex with nitronyl nitroxide radicals [Cu(NIT3Py)(2)Cl-2](2) (NIT3Py = 2-(3'-pyridinyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) has been synthesized and structurally characterized by X-ray diffraction analysis. It crystallizes in monoclinic, space group C2/c with a = 38.483(4), b = 7.2450(8), c = 27.559(3) angstrom, beta = 134.0180(10)degrees, V = 5525.6(10) angstrom(3), C48H64Cl4Cu2N12O8, M-r = 1206.00, Z = 4, D-c = 1.450 g/cm(3), mu(MoK alpha) = 1.025 mm(-1), F(000) = 2504, S = 1.066, the final R = 0.0471 and wR = 0.1121 for 3286 observed reflections (I> 2 sigma(I)). The title complex consists of centrosymmetric dinuclear units [Cu(NIT3Py)(2)Cl-2](2), in which the copper ions are square-pyramidally coordinated by two pyridyl nitrogen atoms of two radical ligands and three chlorine anions, two of which bridge the copper ions. The magnetic measurements show ferromagnetic interactions between the copper ions and the radical ligands.

• 出版日期2012
• 单位天津师范大学