Determination of the transition moment and the geometry of tryptamine by rotationally resolved electronic spectroscopy
Determination of the transition moment and the geometry of tryptamine by rotationally resolved electronic spectroscopy
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通过旋转分辨电子光谱测定色胺的转变矩和几何形状
DOI：
10.1021/j100412a009
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
D. Levy
中科院分区：
文献类型：
--
作者：
L. Philips;D. Levy
本文测量了色胺34918 cm ~（-1）电子跃迁的旋转分辨光谱。光谱的分析将跃迁矩方向定位在相对于A轴的28处，这与将最低激发电子态指定为 * Lb态一致。参与过渡的构象异构体的几何形状也已确定。的构象的几何形状是类似的，由分子力学预测的色氨酸两性离子在溶液中的一个双构象。
The rotationally resolved spectrum of the electronic transition at 34918 cm" 1 in tryptamine has been measured. Analysis of the spectrum locates the transition moment direction at 28 with respect to the A axis, which is consistent with assignment of the lowest excited electronic state as the* Lb state. The geometry of the conformer involved in the transition has also been determined. The geometry of the conformer is similar to that predicted by molecular mechanics for one of the ß conformers of the tryptophan zwitterion in solution.