SYNTHESIS AND CRYSTAL-STRUCTURE OF [NA(12-CROWN-4)2]2[CU4(SE4)3]

被引：0
|
作者：
FENSKE, D
AHLE, A
DEHNICKE, K
机构：
[1] UNIV MARBURG,FACHBEREICH CHEM,HANS MEERWEIN STR,W-3550 MARBURG,GERMANY
[2] UNIV KARLSRUHE,FACHBEREICH CHEM,W-7500 KARLSRUHE,GERMANY
来源：
CHEMIKER-ZEITUNG | 1991年 / 115卷 / 09期
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D O I：
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中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
[Na(12-crown-4)2]2[Cu4(Se4)3] has been prepared by the reaction of a sodium polyselenide solution in DMF with copper(I)chloride in the presence of 12-crown-4, forming black crystal needles. They were characterized by IR-spectroscopy as well as by an X-ray structure determination. Space group P2(1)/c, Z = 8, 11389 observed independent reflections, R = 0.076. Lattice dimensions at -90-degrees-C: a = 1674(1), b = 2820(2), c = 2425(1) pm, beta = 91.58(4)-degrees. The compound consists of cations [Na(12-crown-4)2]+, in which the Na+- ions are coordinated sandwichlike by the eight oxygen atoms of the crown either molecules, and cluster anions [Cu4(Se4)3]2-, which are associated forming a chain of anions.
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页码：249 / 253
页数：5
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