Low temperature Raman spectra of KHCO3 single crystal
Low temperature Raman spectra of KHCO3 single crystal
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KHCO3单晶的低温拉曼光谱
DOI：
10.1002/jrs.1250010607
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发表时间：
1973
影响因子：
2.5
通讯作者：
A. Novak
中科院分区：
文献类型：
--
作者：
G. Lucazeau;A. Novak
在4000-5 cm-1范围内研究了300 K和30 K下KHCO 3单晶的拉曼光谱。还获得了多晶KHCO 3的远红外光谱（300-60 cm-1）。观察到15个拉曼和5个红外活性晶格模，分别来自18个和15个预期的晶格模。根据因子群对称性、转动、平移和氢键振动，给出了一个分配。氢键强度，OH伸缩带的形状和结构进行了讨论，组合带主要涉及OH弯曲的基本原理被认为是负责的主要子带功能。
The KHCO3 single crystal Raman spectra at 300K and 30K have been investigated in the 4000–5 cm−1 range. The far infrared spectrum (300–60 cm−1) of polycrystalline KHCO3 has also been obtained. Fifteen Raman and five infrared active lattice modes from respectively eighteen and fifteen expected ones have been observed. An assignment in terms of factor group symmetry species, rotational, translational and hydrogen bond vibrations is given. Hydrogen bond strength, OH stretching band shape and structure are discussed; combination bands involving mostly OH bending fundamentals are believed to be responsible for the main subband features.