- 作者: Ming-Chi Chaoa, Nai-Hsin Wenga, Hai-Chou Changa, Jyh-Chiang Jiangb and Sheng Hsien Linb,c
- 中文摘要:
aDepartment of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, R.O.C.
bInstitute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, R.O.C.
cDepartment of Chemistry, National Taiwan University, Taipei 106, Taiwan, R.O.C.
The C-H---O interactions of formic acid and acetone aqueous solutions were studied under various concentrations. The infrared spectra of acetone/D2O were also measured as a function of pressure. The C-H stretching frequency of formic acid reveals a red-shift with dilution. On the other hand, upon diluting acetone with D2O, the blue-shift with dilution in C-H stretching frequency was observed. Further high-pressure study provides the experimental evidence for the enhancement of hydrophobic hydration as the sample was compressed to high-pressure ices, while C-H vibration of acetone, being transformed from liquid to high-pressure ice VII, are altered into a band located at ~2950 cm-1. The C-H---O interaction may be a distinct possibility to understand the band-shape and frequency-shift of the C-H stretching modes of formic acid/D2O and acetone/D2O. - 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --