Klaus T, Belov SP, Winnewisser G
I. Physikalisches Institut, Universitat zu Koln, Zulpicher Str. 77, Koln, D-50937, Germany
J Mol Spectrosc. 1997 Dec;186(2):416-21. doi: 10.1006/jmsp.1997.7450.
Pure rotational transitions of the sulfur monoxide isotopomers 32S16O, 34S16O, and 32S18O were measured in different vibrational states of the electronic states a1Delta and b1Sigma+ with the Cologne terahertz spectrometer in the submillimeter-wave region between 300 and 1070 GHz. The new lines were analyzed together with previous results from the literature in a global fit yielding isotopically invariant rotational parameters for both states. The measurements reported here allowed for the first time the determination of the parameters U01S and U01O to correct for the breakdown of the Born-Oppenheimer approximation analogously to the X3Sigma- state. Precise equilibrium bond lengths re are given for all states concerned. Copyright 1997 Academic Press. Copyright 1997Academic Press
使用科隆太赫兹光谱仪，在300至1070吉赫兹的亚毫米波区域，测量了一氧化硫同位素异构体32S16O、34S16O和32S18O在电子态a1Δ和b1Σ+的不同振动状态下的纯转动跃迁。将新谱线与文献中的先前结果一起进行全局拟合，得到了这两个态的同位素不变转动参数。此处报道的测量首次使得能够确定参数U01S和U01O，以便类似于X3Σ-态那样校正玻恩-奥本海默近似的失效。给出了所有相关态的精确平衡键长re。版权所有1997年学术出版社。版权所有1997年学术出版社
