The rotational and vibrational spectra, structure and dipole moment of 1,3-dioxole-2-thione
作者:Khalid Iqbal、Noel L. Owen、John Sheridan
DOI:10.1016/0022-2860(80)80123-2
日期:1980.5
Abstract Rotational and centrifugal distortion constants are determined for the ground state and several excited states of the lowest vibrational mode of l,3-dioxole-2-thione, the “envelope” ring-bending mode. The structure of the molecule is planar. The A-constant is 1% larger than that of 1,3-dioxole-2-one (vinylene carbonate), which indicates small changes in ring-geometry on substituting CS for
摘要 确定了 l,3-dioxole-2-thione 最低振动模式的基态和几个激发态的旋转和离心畸变常数,即“包络”环弯曲模式。分子的结构是平面的。A 常数比 1,3-dioxole-2-one(碳酸亚乙烯酯)大 1%,这表明在用 CS 代替 CO 时环几何结构的变化很小。从斯塔克效应测量推导出的 1,3-dioxole-2-thione 的偶极矩为 (1.60 ± 0.02) × 10 -29 Cm (4.81 ± 0.06 D)。IR 和拉曼光谱导致对正常振动模式的完整分析,部分基于正常坐标计算。