Synthesis and Crystal Structure of a New Zn(II) Nitronyl Nitroxide Complex [Zn(NIT4Py)(PDA)(H_2O)_3]

作     者：GAO Dong-Zhao WANG Shu-Ping CHEN Jin LI Li-Cun LIAO Dai-Zheng JIANG Zong-Hui YAN Shi-Ping 

作者机构：Department of Chemistry Nankai University Tianjin 300071 China State Key Laboratory of Structural Chemistry Fujian Institute of Researchon the Structure of Matter The Chinese Academy of Sciences Fuzhou 350002 China 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学（英文）)

年 卷 期：2006年第25卷第2期

页      面：224-228页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070304[理学-物理化学(含∶化学物理)] 0703[理学-化学] 070301[理学-无机化学] 

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

主　　题：zinc(Ⅱ) complex nitronyl nitroxide radical crystal structure intermolecularinteraction 

摘      要：A new Zn（Ⅱ） nitronyl nitroxide complex [Zn（NIT4Py）（PDA）（HzO）3] （NIT4Py = 2-（4＇-pyridyl）-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide, H2PDA = pyridine-2,5-dicarboxylic acid） has been synthesized and structurally characterized by X-ray diffraction. It crystallizes in monoclinic, space group P2 1/c with a = 16.881（8）, b = 7.356（4）, c = 18.857（9） A°,β = 108.616（6）°, V = 2219.1 （19）A°^3 ,C 19H25N4O9Zn, Mr = 518.80, Dc = 1.553 g/cm^3, μ（MoKa） = 1.165 mm^-1, F（000） = 1076, Z = 4, the final R = 0.0269 and wR = 0.0715 for 3193 observed reflections with I 〉 2σ（I）. The complex exists as discrete mononuclear molecules and the zinc（Ⅱ） ion is six-coordinated with one radical ligand （NIT4Py）, one bidentate pyridine-2,5-dicarboxylate anion and three water molecules. A three-dimensional network structure is formed through the intermolecular interactions.