ENERGY AND ANGULAR-DEPENDENCE OF H-(D-) IONS PRODUCED BY DISSOCIATIVE ELECTRON-ATTACHMENT TO H2O(D2O)
ENERGY AND ANGULAR-DEPENDENCE OF H-(D-) IONS PRODUCED BY DISSOCIATIVE ELECTRON-ATTACHMENT TO H2O(D2O)
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DOI：
10.1088/0022-3700/14/1/017
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发表时间：
1981-01-01
影响因子：
1.6
通讯作者：
HALL, RI
中科院分区：
文献类型：
--
作者：
BELIC, DS;LANDAU, M;HALL, RI
在6.5、8.6和11.8 eV范围内观测到了H-(D-)离子在H_2O(D_2O)中解离附着形成的能量和角分布。角行为表明，引起这些过程的共振态的对称性分别为2B1、2A1和2B2。这三个过程的H-(D-)离子的能量分布表明，大部分离解能以平移的形式存在，而且每个过程和同位素的分布是相似的。这种相似性表明，H2O-态的势面和自脱宽度也大致相同，这支持Jungen、Vogt和Staemmler(1979)的建议和计算，他们预测这三个态是由3SA1轨道上的两个电子与H2O+核结合而形成的，其中1b1、3a1和1b2轨道上有一个空位。
Energy and angular distributions of H-(D-) ions formed by dissociative attachment in H 2 O (D 2 O) have been observed for the processes situated in the region of 6.5, 8.6 and 11.8 eV. The angular behaviour would indicate that the symmetries of the resonant states responsible for these processes are 2 B 1, 2 A 1 and 2 B 2, respectively. The energy distributions of the H-(D-) ions for all three processes show that most of the dissociation energy is in the form of translation and furthermore the distributions for each process and isotope are similar. This similarity would indicate that the potential surfaces and the autodetachment widths of the H 2 O-states are also about the same which would support the proposals and calculations of Jungen, Vogt and Staemmler (1979) who predict that these three states are formed by two electrons in 3sa 1 orbitals bound to an H 2 O+ core with a vacancy in the 1b 1, 3a 1 and 1b 2 orbitals, respectively.