Photoionization of (H2)2 and the clusters of O2 molecules
Photoionization of (H2)2 and the clusters of O2 molecules
复制标题
(H2)2 和 O2 分子簇的光电离
DOI：
10.1063/1.440010
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发表时间：
1980
影响因子：
4.4
通讯作者：
Yongjin Lee
中科院分区：
文献类型：
--
作者：
S. Anderson;T. Hirooka;P. Tiedemann;B. Mahan;Yongjin Lee
在分子束实验中研究了(H2)2和O2团簇的光致电离。没有发现稳定的(H2)2+存在的证据。(H2)2→hυH3++H+e的光致电离光谱与(H2) hν→H2++e的光致电离光谱非常相似，但光谱特征的显著差异表明，振动激发的(H2)2的自电离和振动预解离之间存在竞争。从(O2)n的光致电离阈值，n=1-5得出结论：(O2)2+被0.26±0.02 eV束缚，但较高的O2+团簇的附加结合能要小得多，与电荷诱导的偶极相互作用的结果差不多。
Photoionization of (H2)2 and clusters of O2 was investigated in a molecular beam experiment. No evidence was found for the existence of stable (H2)2+. Photoionization spectra of (H2)2 →hυ H3++H+e is quite similar to that of (H2) hν→H2++e, yet the appreciable differences in some features of spectra suggest that there is a competition between the autoionization and vibrational predissociation of vibronically excited (H2)2. From the photoionization thresholds of (O2)n, n=1–5, it is concluded that (O2)2+ is bound by 0.26±0.02 eV, but the additional binding energies for higher clusters of O2+ are much smaller; just about what one would expect from a charge induced dipole interaction.