ZN(II) COMPLEXES WITH THIOPYRIMIDINE DERIVATIVES - SOLUTION STUDY, SYNTHESIS AND CRYSTAL-STRUCTURE OF A ZIGZAG CHAIN ZINC(II) COMPLEX WITH THE LIGAND 4,6-DIMETHYL-2-THIOPYRIMIDINE

被引：43

作者：

GODINOSALIDO, ML

GUTIERREZVALERO, MD

LOPEZGARZON, R

MORENOSANCHEZ, JM

机构：

[1] FAC CIENCIAS EXPTL JAEN,DEPT QUIM INORGAN,E-23071 JAEN,SPAIN

[2] UNIV GRANADA,FAC CIENCIAS,DEPT QUIM INORGAN,E-18071 GRANADA,SPAIN

来源：

INORGANICA CHIMICA ACTA | 1994年 / 221卷 / 1-2期

关键词：

CRYSTAL STRUCTURES; ZINC COMPLEXES; THIOPYRIMIDINE COMPLEXES; SOLUTION STUDY;

D O I：

10.1016/0020-1693(94)03965-8

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The acid-base properties of the pyrimidine derivative 4,6-dimethyl-2-thiopyrimidine (HL) have been determined. The protonation constants of anionic L and neutral HL and the stability constants of the Zn(II) complexes formed with this ligand were determined by potentiometric measurements at 25-degrees-C and 0.1 M KCl ionic strength. The molecular structure of the solid complex [ZnL2]n has been established by single-crystal X-ray diffraction. The crystals of the compound are orthorhombic, of space group P2(1)2(1)2(1), with cell constants a = 7.984(1), b = 13.476(2), c = 13.709(2) angstrom, Z = 4 and D(c) = 1.548 g cm-3. The structure was solved and refined to R = 0.055 (R(w) = 0.051) and consists of infinite zig-zag chains running along the a axis. The geometry of each ZnN3S2 chromophore is almost an ideal trigonal bipyramid.

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页码：177 / 181

页数：5

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