β-三苯锗基丙酸及β-三苯锗基丁酸的拉曼及红外光谱

Raman and FT-IR Spectroscopic Characterization of β-Triphenylgermyl Propanoic Acid and β-Triphenylgermyl Butanoic Acid

我们合成了有机锗化合物的一类重要中间体β-三苯锗基丙酸和β-三苯锗基丁酸 ,测量了该化合物的拉曼光谱和红外光谱 ,经光谱分析 ,指认了主要波数所对应的分子振动。在这两种化合物的拉曼光谱中 ,30 50 cm- 1( m)、1 0 2 5cm- 1( m)和 61 8cm- 1( m)分属于 Ph- H的伸缩振动、面内弯曲振动和面外扭曲振动。饱和 Ge- C键的振动分别在 594cm- 1和 587cm- 1,同时指出了 Ph- Ge的几种振动所对应的振动频率。在红外光谱中 ,C=O的振动出现在 1 70 9cm- 1( s)和 1 70 5cm- 1( s) ,与饱和碳相连接的 Ge- C振动出现在 61 7cm- 1( w)和 61 7cm- 1( w)。

The Raman and FT IR spectra of the β triphenylgermyl propanioc acid and β triphenylgermyl butanoic acid have been measured. The six Ge Ph vibration modes of these compounds are discussed. The peaks near 3050 cm -1 (m), 1025 cm -1 (m), and 618 cm -1 (m) are assigned to the Ph H stretching, Ph?? and Ph ring wagging respectively. The peaks near 590 cm -1 (w) are assigned to the stretching vibration of the saturated Ge C bonds.