| Pressure-dependent studies on hydration of the C–H group in formic acid | |
|---|---|
| 學年 | 90 |
| 學期 | 1 |
| 出版（發表）日期 | 2001-11-01 |
| 作品名稱 | Pressure-dependent studies on hydration of the C–H group in formic acid |
| 作品名稱（其他語言） | |
| 著者 | Chang, Hai-chou; Jiang, Jyh-chiang; Chao, Ming-chi; Lin, Ming-shan; Lin, Sheng-hsien; Chen, Hsin-yen; 薛宏中; Hsueh, Hung-chung |
| 單位 | 淡江大學物理學系 |
| 出版者 | American Institute of Physics (AIP) |
| 著錄名稱、卷期、頁數 | Journal of chemical physics 115(17), pp.8032-8037 |
| 摘要 | The infrared spectroscopic profiles of HCOOD/D2O mixtures were measured as a function of pressure and concentration. The C–H bond of HCOOD shortens as the pressure is elevated, while the increase in C–H bond length upon diluting HCOOD with D2O was observed. Based on the experimental results, the shift in frequency of C–H stretching band is concluded to relate to the mechanism of the hydration of the C–H group and the water structure in the vicinity of the C–H group. The pressure-dependent results can be attributed to the strengthening of C–H---O electrostatic/dispersion interaction upon increasing pressure. The observations are in accord with ab initio calculation forecasting a blueshift of the C–H stretching mode via C–H---O interaction in HCOOD-water/~HCOOD!2-~D2O! complexes relative to the noninteracting monomer/dimer. Hydrogen-bonding nonadditivity and the size of water clusters are suggested to be responsible to cause the redshift in C–H stretching mode upon dilution HCOOD with D2O. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 0021-9606 |
| 期刊性質 | 國內 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | |
| 國別 | |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27564 ) |
| SDGS | 優質教育 |
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