SYNTHESIS AND CRYSTAL-STRUCTURE OF [NA(12-CROWN-4)2]2[HG(SE4)2] CENTER-DOT 1.5 DMF

被引：10

作者：

AHLE, A

DEHNICKE, K

MACZEK, K

FENSKE, D

机构：

[1] UNIV MARBURG,FACHBEREICH CHEM,HANS MEERWEIN STR,D-35032 MARBURG,GERMANY

[2] UNIV KARLSRUHE,INST ANORGAN CHEM,W-7500 KARLSRUHE,GERMANY

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1993年 / 619卷 / 10期

关键词：

POLYSELENIDO COMPLEX OF MERCURY; SYNTHESIS; CRYSTAL STRUCTURE;

D O I：

10.1002/zaac.19936191012

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The title compound has been prepared by the reaction of Na2Se4 with mercury acetate in DMF solution in the presence of 15-crown-5, forming dark red crystal needles. [Na(12-crown-4)2]2[Hg(Se4(2] . 1.5 DMF crystallizes in the space group C2/c with eight formula units per unit cell. The structure was determined with 3 824 observed unique reflections, R = 0.085. Lattice dimensions at -70-degrees-C: a = 2884(2), b = 1 407.7(7), c = 2 843(2) pm, beta = 93.93(5)degrees. The structure consists of [Na(12-crown-4)2]+ ions with a sandwichlike coordination of the crown ether molecules, and of [Hg(Se4)2]2-ions, in which the mercury atom is coordinated by two tetraselenido ions in a chelating fashion. The [Hg(Se4)2]2- ions are arranged to infinite chains via Se...Se contacts.

引用

页码：1699 / 1703

页数：5

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