Raman spectroscopic investigations of DL-serine and DL-valine under pressure

被引:51
作者
Murli, Chitra [1 ]
Vasanthi, R. [1 ]
Sharma, Surinder M. [1 ]
机构
[1] Bhabha Atom Res Ctr, High Pressure Phys Div, Bombay 400085, Maharashtra, India
关键词
DL-serine; DL-valine; Raman spectroscopy; high pressure; hydrogen bond;
D O I
10.1016/j.chemphys.2006.09.030
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Raman spectroscopic studies of DL-serine and DL-valine under static high pressures have been carried out tip to 8 and 7 GPa, respectively to understand the behaviour of hydrogen bonds in these compounds. The discontinuous changes in the pressure dependence of some of the Raman Modes of DL-serine at 1.5 GPa are interpreted to be due to molecular rearrangements brought about by changes in the hydrogen bonding interactions. Our results of the pressure dependence of N-H center dot center dot center dot O librational modes in DL-valine at 3 GPa suggest changes in the nature of hydrogen bonding interactions across this pressure. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:77 / 84
页数:8
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