Synthesis and characterization of bis(1,10-phenanthroline) tri(trans-2, 3-dimethylacrylato) lanthanide(III) dinuclear complexes

被引：0

作者：

Lu, WM ^{[1
]}

Wu, B ^{[1
]}

Wang, LN ^{[1
]}

机构：

[1] Hangzhou Univ, Inst Catalysis, Hangzhou 310028, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2001年 / 22卷 / 04期

关键词：

rare earth metal; trans-2,3-dimethylacrylic acid; 1,10-phenanthroline; crystal structure;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel dinuclear lanthanide complexes, [REL3(phen)](2)(RE = La, Ce, Pr, Nd, Sm, Eu; L = trans-2, 3-dimethylacrylate, phen = phenanthroline), have been synthesized and characterized by IR, NMR, UV spectroscopy and elemental analysis. The single crystal of [LaL(3)phen](2) has been determined by X-ray crystallography, which crystallizes in the monoclinic, space group P2(1)/n with Z = 2, cell dimensions a = 1.296 2(4) nm, b = 1.328 3(4) nm, c = 1.548 5(5) nmr beta = 95.45(2)degrees. The structure was refined to R = 0.033 for observed 3 112 reflections and consists of centrosymmetric dinuclear molecule. Lanthanum atoms are bridged by two bidenate and two terdentate carboxylato groups with La . . . La separation of 0.409 4 nm. Each Lanthanum atom is nine coordinate and exhibits a distorted tricapped trigonal prism. The La-O and La-N bond distances are in the range of 0.246 0-0.275 6 and 0.271 8-0.276 0 nmr respectively.

引用

页码：535 / 538

页数：4

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