Synthesis, Crystal Structure and Optical Properties of a New Nd(III) Nitronyl Nitroxide Complex [Nd(NIT2Py)_2(NO_3)_3]  

作　　者：LI Dong-Jiao GAO Dong-Zhao LI Li-Cun LIAO Dai-Zheng JIANG Zong-Hui YAN Shi-Ping 

机构地区：[1]Department of Chemistry, Nankai University, China,Tianjin 300071 [2]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, China,Fuzhou Fujian 350002

出　　处：《Chinese Journal of Structural Chemistry》2005年第8期905-908,共4页结构化学（英文）

基　　金：This work was supported by the National Natural Science Foundation of China (No. 20331010) and Natural Science Foundation of Tianjin (No. 033602011)

摘　　要：A new Nd（Ⅲ） nitronyl nitroxide complex [Nd（NIT2Py）2（NO3）3] （NIT2Py = 2-（2＇-pyridyl）-4,4,5,5-tetramethylimidazoline-l-oxyl-3-oxide） has been synthesized and structurally characterized by X-ray diffraction. It crystallizes in monoclinic, space group P21/n with a = 12.396（4）, b =11.134（4）, c = 23.360（7） A°, β = 98.178（6）°, V= 3191.2（18） A°^3, C24H32N9NdO13, Mr = 798.83, Dc =1.663 g/cm^3, μ（MoKa） = 1.704 mm^-1, F（000） = 1612, Z = 4, the final R = 0.0425 and wR = 0.0957 for 6532 independentreflections with Rint = 0.0642 and 4552 observed reflections （I 〉 2σ（I））. The complex exists as discrete mononuclear molecules and the neodymium（Ⅲ） ion is ten-coordinated with three bidentate nitrate anions and two radical ligands （NIT2Py） via bidentate chelating mode.The optical properties of the complex are discussed.A new Nd（Ⅲ） nitronyl nitroxide complex [Nd（NIT2Py）2（NO3）3] （NIT2Py = 2-（2＇-pyridyl）-4,4,5,5-tetramethylimidazoline-l-oxyl-3-oxide） has been synthesized and structurally characterized by X-ray diffraction. It crystallizes in monoclinic, space group P21/n with a = 12.396（4）, b =11.134（4）, c = 23.360（7） A°, β = 98.178（6）°, V= 3191.2（18） A°^3, C24H32N9NdO13, Mr = 798.83, Dc =1.663 g/cm^3, μ（MoKa） = 1.704 mm^-1, F（000） = 1612, Z = 4, the final R = 0.0425 and wR = 0.0957 for 6532 independentreflections with Rint = 0.0642 and 4552 observed reflections （I 〉 2σ（I））. The complex exists as discrete mononuclear molecules and the neodymium（Ⅲ） ion is ten-coordinated with three bidentate nitrate anions and two radical ligands （NIT2Py） via bidentate chelating mode.The optical properties of the complex are discussed.

关 键 词：neodymium（Ⅲ）complex nitronyl nitroxide radical crystal structure optical properties 

分 类 号：O614.335[理学—无机化学] O641.4[理学—化学]