INFRARED AND RAMAN-SPECTRA OF ZN(NH3)(2)BR-2 WITH N-15 AND H-2 ISOTOPIC-SUBSTITUTION

被引:10
|
作者
ISHIKAWA, DN
TELLEZ, CA
机构
[1] UNIV NACL AUTONOMA MEXICO,INST QUIM,COYOACAN 04510,DF,MEXICO
[2] PONTIFICIA UNIV CATOLICA RIO DE JANEIRO,DEPT QUIM,BR-22453 RIO JANEIRO,BRAZIL
关键词
INFRARED SPECTROMETRY; RAMAN SPECTROMETRY; AMMINE COMPLEXES; ISOTOPIC SUBSTITUTION; NORMAL COORDINATE ANALYSIS; ZINC;
D O I
10.1016/0924-2031(94)00014-8
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The infrared and Raman spectra of the Zn(NH3)(2)Br-2 complex in the higher and lowest infrared region (600-40 cm(-1)) have been assigned by using N-15 and H-2 isotopic substitution and were compared with the analogous Zn(NH3)(2)Cl-2 complex. The principal nu(s)(ZnN) (alpha(1)), nu(as)(ZnN) (b(1)), nu(s)(ZnBr) (alpha(1)) and nu(as)(ZnBr) (b(2)) stretching and the delta(NZnBr) bending modes were observed. A normal coordinate analysis for the three isotopic compounds has been carried out based on a local symmetry force field (LSFF). The results support the experimental assignments.
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页码:87 / 95
页数:9
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