SYNTHESIS AND STRUCTURE OF DINUCLEAR COMPLEXES OF TERBIUM(III) WITH 4-ACETYLBISPYRAZOLONE

被引：13

作者：

YANG, LQ ^{[1
]}

YANG, RD ^{[1
]}

机构：

[1] LANZHOU UNIV,DEPT CHEM,LANZHOU 730000,PEOPLES R CHINA

来源：

JOURNAL OF COORDINATION CHEMISTRY | 1994年 / 33卷 / 04期

关键词：

PYRAZOLONE; TETRAKETONE; DINUCLEAR COMPLEX; TERBIUM; X-RAY STRUCTURE;

D O I：

10.1080/00958979408024290

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two novel dinuclear complexes of terbium(III) with 1,5-bis(1'-phenyl-3'-methyl-5'-pyrazolone-4')-1,5-pentanedione (H(2)L), Tb(2)L(3).6H(2)), Tb(2)L(3).5DMF, have been synthesized. The crystal structure of Tb(2)L(3).5DMF was determined by X-ray diffraction methods. Crystals are triclinic, space group P ($) over bar 1 with a = 16.957(5), b = 17.877(7), c = 18.269(2)Angstrom, alpha = 110.35(2), beta = 101.29(2), gamma = 111.00(2)degrees, V = 4511(6)Angstrom(3), Mr = 2010.76, Z = 2, Dx = 1.48 g cm(-3), mu = 16.45 cm(-1), F(000) = 2,052, R = 0.058 with 6574 reflections used in refinement. In the complex, L acts as a bridging ligand and bonds two terbium atoms with its two P-diketone groups. Each terbium ion bonds to two DMF solvent molecules. The coordination number of the two terbium ions is eight. The eight oxygen atoms around the terbium make a distorted square antiprismatic coordination polyhedron.

引用

页码：303 / 310

页数：8