Microwave Spectra of Molecules Exhibiting Internal Rotation. III. Trimethylamine
Microwave Spectra of Molecules Exhibiting Internal Rotation. III. Trimethylamine
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表现出内旋转的分子的微波光谱。
DOI：
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发表时间：
1957
期刊：
影响因子：
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通讯作者：
D. E. Mann
中科院分区：
文献类型：
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作者：
D. Lide;D. E. Mann
本文研究了甲基丙二烯CH_3CH：C：CH_2在16-33 kmc范围内的微波光谱，测量了J=1→2，2→3，3→4跃迁。大多数观察到的谱线由于内部旋转而略微分裂。用Hecht和Dennison的方法分析分裂，得到内部势垒为556.0±2 cm-1或1589±6 cal/mole。主惯性矩（单位为amu A2）为14.93、120.321和128.713。电偶极矩为0.401 D，与a主轴成10°8′角。
The microwave spectrum of methylallene, CH3CH:C:CH2, has been investigated in the region 16–33 kmc, and the J=1→2, 2→3, and 3→4 transitions measured. Most of the observed lines are split slightly as a result of internal rotation. Analysis of the splittings by the methods of Hecht and Dennison leads to an internal potential barrier of 556.0±2 cm—1 or 1589±6 cal/mole. The principal moments of inertia (in units of amu A2) are 14.93, 120.321, and 128.713. The electric dipole moment is 0.401 D and makes an angle of 10°8′ with the a principal axis.