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