Kinetic isotope effects of proton transfer reaction for amines by ultrasonic relaxation methods: Unexpected evidence from the results in ethylamine solutions
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:44页码:8799-8802 |
| 关键词 | HETEROCYCLIC AMINES AQUEOUS-SOLUTIONS ABSORPTION |
| ISSN号 | 1089-5639 |
| 通讯作者 | nishikawa s |
| 中文摘要 | ultrasonic absorption coefficients for ethylamine in heavy water (d2o) and in light water (h2o) have been measured in the frequency range from 0.8 to 220 mhz at 25 degrees c. a single relaxational process has been observed in these two kinds of solutions. from the concentration dependence of the ultrasonic relaxation parameters, and following the reaction mechanism proposed by eigen et al. for ethylamine in h2o, the causes of the relaxations have been attributed to a perturbation of an equilibrium associated with a deuteron or proton transfer reaction. the rate and equilibrium constants have been estimated from deuterioxide or hydroxide ion concentration dependence of the relaxation frequency, and the kinetic isotope effects have been determined. in addition, the standard volume changes of the reactions have been calculated from the concentration dependence of the maximum absorption per wavelength, and the adiabatic compressibility has also been determined from the density and sound velocity for ethylamine in d2o and in h2o, respectively. these results are compared with those for propylamine and butylamine and are discussed in relation to the different kinetic properties between d2o and h2o, the reaction radii derived by debye theory, and the structural properties of the reaction intermediate. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000083763900007 |
| 公开日期 | 2010-11-04 |
| 源URL | [http://202.98.16.49/handle/322003/21529]  |
| 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. Kinetic isotope effects of proton transfer reaction for amines by ultrasonic relaxation methods: Unexpected evidence from the results in ethylamine solutions[J]. journal of physical chemistry a,1999,103(44):8799-8802. |
| APA | Huang H,Nishikawa S,&Dong SJ.(1999).Kinetic isotope effects of proton transfer reaction for amines by ultrasonic relaxation methods: Unexpected evidence from the results in ethylamine solutions.journal of physical chemistry a,103(44),8799-8802. |
| MLA | Huang H,et al."Kinetic isotope effects of proton transfer reaction for amines by ultrasonic relaxation methods: Unexpected evidence from the results in ethylamine solutions".journal of physical chemistry a 103.44(1999):8799-8802. |
入库方式： OAI收割
来源：长春应用化学研究所
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