Ultrasonic relaxation kinetics on fast deuteron transfer reaction
文献类型：期刊论文
| 作者 | Huang H ; Nishikawa S ; Dong SJ |
| 刊名 | journal of physical chemistry a
 |
| 出版日期 | 1999 |
| 卷号 | 103期号:20页码:3804-3808 |
| 关键词 | PROTON-TRANSFER REACTION ABSORPTION METHOD HETEROCYCLIC AMINES AQUEOUS-SOLUTIONS WATER |
| ISSN号 | 1089-5639 |
| 通讯作者 | nishikawa s |
| 中文摘要 | propylamine has been selected to investigate the isotope effect of a fast deuteron transfer reaction by ultrasonic relaxation method. ultrasonic absorption coefficients of propylamine in heavy water (d2o) at 25 degrees c in the concentration range from 0.0107 to 0.6300 mol dm(-3) have been measured by pulse and resonance methods over the frequency range from 0.8 to 220 mhz. a debye-type single relaxation absorption has been observed in the solution. from the dependence of the ultrasonic relaxation parameters on the concentration and solution ph, the source of the observed relaxation has been attributed to a perturbation of the chemical equilibrium associated with the deuteron transfer reaction. the rate and equilibrium constants have been determined by the measurement of the deuteroxyl ion concentration dependence of the relaxation frequency. also the standard volume change of the reaction has been determined from the concentration dependence of the maximum absorption per wavelength and the adiabatic compressibility has been calculated from the density and the sound velocity in the solution. these results have then been compared with those obtained for propylamine in light water (h2o). the forward rate constant is greater and the reverse rate constant is smaller in do than in h2o. the standard volume change for deuteron transfer is greater than that for proton transfer reaction, and the adiabatic compressibility shows a similar trend. these data support an argument that there exists a stronger hydrogen bond in d2o than in h2o. the difference of the stability in the intermediate states, r-nd3+... od- and r-nh3+... oh-, has also been considered from the results of the isotope effects. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000080565300003 |
| 公开日期 | 2010-11-04 |
| 源URL | [http://202.98.16.49/handle/322003/21833]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Huang H,Nishikawa S,Dong SJ. Ultrasonic relaxation kinetics on fast deuteron transfer reaction[J]. journal of physical chemistry a,1999,103(20):3804-3808. |
| APA | Huang H,Nishikawa S,&Dong SJ.(1999).Ultrasonic relaxation kinetics on fast deuteron transfer reaction.journal of physical chemistry a,103(20),3804-3808. |
| MLA | Huang H,et al."Ultrasonic relaxation kinetics on fast deuteron transfer reaction".journal of physical chemistry a 103.20(1999):3804-3808. |
入库方式： OAI收割
来源：长春应用化学研究所
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