POLARIZED RAMAN AND INFRARED-SPECTRA OF (NH3)2(CH2)2HPO4, (NH3)2(CH2)2HASO4

被引:26
作者
PHILIP, D [1 ]
ARULDHAS, G [1 ]
机构
[1] UNIV KERALA,DEPT PHYS,TRIVANDRUM 695581,INDIA
关键词
D O I
10.1002/jrs.1250210310
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Polarized Raman and IR spectra of (NH3)2(CH2)2HPO4 and (NH3)2(CH2)2 HAsO4 have been recorded and analysed. Crystal field effects are found to be stronger in the phosphate than in the arsenate and the symmetry of the anion is reduced from C3v to C1. In the arsenate the ethylenediammonium groups are identical whereas in the phosphate they are crystallographically different. The effects of strong vibrational coupling between PO(H) stretching and POH out‐of‐plane bending modes are observed in the phosphate. It is found that the HAsO 42− has a greater angular distortion. Copyright © 1990 John Wiley & Sons, Ltd.
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页码:211 / 214
页数:4
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