DINUCLEAR AND TRINUCLEAR NICKEL(II) CHELATES OF BIS-BIDENTATE N-ACYLSELENOUREAS

被引：7

作者：

KOHLER, R

BEYER, L

RICHTER, R

SIELER, J

STACH, J

机构：

[1] TH LEIPZIG,SEKT NAT WISSENSCH,KARL LIEBKNECHT STR 132,O-7030 LEIPZIG,GERMANY

[2] KARL MARX UNIV,SEKT CHEM,O-7010 LEIPZIG,GERMANY

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1991年 / 600卷 / 09期

关键词：

NICKEL(II) CHELATES; SYNTHESES; CRYSTAL STRUCTURES; FAB MASS SPECTRA;

D O I：

10.1002/zaac.19916000111

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Bis-bidentate isophthaloyl-bis(selenoureas) form with nickel(II) ions under deprotonating conditions macrocyclic dinuclear metal chelates. This was confirmed by X-ray crystal structure analysis of the cyclo- di[nickel-mu-[1,1,1',1'-tetraisobutyl-3,3'-iso-phthaloyl-bis-selenoureato(2-)-Se,0:0',Se']], 2. The compound 2 crystallizes in the monoclinic space group P 2(1)/c with a = 11.673 (1); b = 19.834 (2); c = 13.606 (1) angstrom; beta = 107.45 (1)-degrees and Z = 2. The final R value was R = 0.081 for 3 049 observed reflections. Bis-bidentate terephthaloyl-bis(selenoureas) give under the same conditions macrocyclic trinuclear nickel(II) chelates. Both types of the complexes are characterized by FAB mass spectra.

引用

页码：73 / 81

页数：9

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