Vibrational Frequencies of the Isotopic Water Molecules; Equilibria with the Isotopic Hydrogens
摘要:
The fundamental frequencies, anharmonicities, and vibrational modes for the molecules HDO, HTO, DTO, and T2O are calculated on the basis of Dennison's and Darling's recent analysis of the vibrational spectrum of the H2O molecule. The equilibrium constants for nine equilibria involving these molecules are given. Experimental values for the reactions HD+H2O=H2+HDO and HT+H2O=H2+HTO are compared with those calculated. It is concluded that the vibrational potential function is essentially unaltered by isotopic substitution.
Vibrational Frequencies of the Isotopic Water Molecules; Equilibria with the Isotopic Hydrogens
摘要:
The fundamental frequencies, anharmonicities, and vibrational modes for the molecules HDO, HTO, DTO, and T2O are calculated on the basis of Dennison's and Darling's recent analysis of the vibrational spectrum of the H2O molecule. The equilibrium constants for nine equilibria involving these molecules are given. Experimental values for the reactions HD+H2O=H2+HDO and HT+H2O=H2+HTO are compared with those calculated. It is concluded that the vibrational potential function is essentially unaltered by isotopic substitution.
Radiolysis of water vapor and a surface-catalyzed isotope-exchange reaction
作者:Helen W. Richter、R. F. Firestone
DOI:10.1021/ja00407a033
日期:1981.8
produced D atoms. However, the experimental results of the present investigation demonstrate conclusively that when H/sub2/ is used as a radical scavenger there are two pathways for HD formation: (1) homogeneous scavenging of the radiolytically produced D atoms by H/sub2/, as expected, and (2) heterogeneous combination of H atoms produced in the scavenging reaction (D + H/sub2/ ..-->.. HD + H) with
已经使用氚、过丙烷或这两者的混合物作为自由基清除剂来检查氧化氘蒸气的稳态辐射分解。氚水用作内部辐射源,并使用玻璃辐照容器。D 原子是在 D/sub 2/O 的辐射分解中产生的,而 HD 是通过该物种与添加的自由基清除剂的反应形成的。以前假设 HD 分子的产量可以与辐射分解产生的 D 原子的产量相等。然而,本研究的实验结果最终表明,当 H/sub 2/ 用作自由基清除剂时,HD 形成有两种途径:(1)H/sub 2/ 均匀清除辐射产生的 D 原子,正如预期的那样,(2) 清除反应 (D + H/sub 2/ ..-->.. HD + H) 中产生的 H 原子与吸附在容器表面的 D 原子的异质组合,其中吸附的 D 原子由从体积中吸附的 H 原子与 D/sub 2/O 之间的表面催化同位素交换反应。从这项调查的结果来看,D/sub 2/O 的辐射分解中产生的 D 原子的产量似乎是 G/sub D/
Jackson, D. P., Chemical Abstracts, AECL-3382 (1969) 1/19, 1970, vol. 72, p. 49965
作者:Jackson, D. P.
DOI:——
日期:——
Andreev, B. M.; Zel'venskii, Ya. D.; Uborskii, V. V., Atomnaya Energiya, 1978, vol. 44, p. 266 - 271
作者:Andreev, B. M.、Zel'venskii, Ya. D.、Uborskii, V. V.