SYNTHESIS AND CRYSTAL-STRUCTURE OF 2 STEREOCHEMICAL ISOMERS OF THE TRANS-DICHLORO(1,4,8,11-TETRAAZACYCLOTETRA-DECANE)CHROMIUM(III) CATION

被引:19
作者
FLORESVELEZ, LM
SOSARIVADENEYRA, J
SOSATORRES, ME [1 ]
ROSALESHOZ, MJ
TOSCANO, RA
机构
[1] NATL AUTONOMOUS UNIV MEXICO,FAC QUIM,DIV ESTUDIOS POSGRAD,CIUDAD UNIV,MEXICO CITY 04510,DF,MEXICO
[2] NATL AUTONOMOUS UNIV MEXICO,INST QUIM,MEXICO CITY 04510,DF,MEXICO
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1991年 / 12期
关键词
D O I
10.1039/dt9910003243
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Two stereoisomers of the cationic trans-[Cr(cyclam)Cl2]+ complex (cyclam = 1,4,8,11-tetraazacyclotetradecane) were prepared and isolated as the nitrate and tetrachlorozincate salts and their structures determined by X-ray diffraction studies of the monoclinic crystals of the nitrate salt, a = 6.480(2), b = 18.862(12), c = 13.628(6) angstrom, beta = 100.28(3)-degrees, and tetragonal crystals for the tetrachlorozincate salt, a = 16.377(4), c = 6.821(2) angstrom. The two complexes show an octahedral geometry about the metal atoms with the RSSR configuration but with differences in the conformations of the six-membered rings.
引用
收藏
页码:3243 / 3247
页数:5
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