Synthesis, Crystal Structure and Thermal Stability of (Diacetylacetone)(diimidazole)Nickel(II) Complex

被引：0

作者：

JIAN FangFang PANG Lei XIAO HaiLian SUN PingPing New Materials Function Coordination Chemistry Laboratory Qingdao University of Science and Technology Qingdao China ^{[266042
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机构：

来源：

结构化学 | 2004年 / 09期

关键词：

nickel(II) complex; crystal structure; thermal property; acetylacetone ligand;

D O I：

10.14102/j.cnki.0254-5861.2004.09.001

中图分类号：

O627 [元素有机化合物];

学科分类号：

070303 ; 081704 ;

摘要：

The title compound, [Ni(acac)2(Im)2] (acac = acetylacetone), has been obtained by the reaction of Ni(acac)2 with imidazole ligand in the ethanol solvent. The blue crystal is of triclinic, space group Pi with a = 7.472(2), b = 9.456(2), c = 13.823(3) ? a = 85.55(3), = 89.03(3), ? = 80.63(3)o, C16H22N4NiO4, Mr = 393.09, V = 960.7(3) 3, Z = 2, Dc = 1.359 g/cm3, F(000) = 412, = 1.036 mm-1, R = 0.0549 and wR = 0.1615. The crystal structure consists of two disconnected structural units. Each Ni atom coordinated by two N atoms from two imidazole ligands and four O atoms from two acetylactone ligands adopts a slightly distorted octahedron. The structure characterization was performed by means of IR, UV, TG, elemental analysis and single-crystal X-ray analysis. The thermal gravity (TG) data indicate that thermal decomposition of the title compound takes place in two steps, and the residue is NiO.

引用

页码：975 / 978

页数：4