β-三氯锗基丙酸类化合物的拉曼光谱和红外光谱

Raman and IR Spectroscopic Characterization of β--Trichlorogermyl Propanoic Acid and Its Derivatives

我们合成了β-三氯锗基丙酸及其类似物并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 A、B、C、D四种化合物的拉曼光谱中 ,Ge- Cl的振动分别出现在 397cm- 1( vs)、40 0 cm- 1( vs)、394cm- 1( vs)、385cm- 1( vs)中 ,而在红外光谱中却无法证明 Ge- Cl键的存在 ,Ge- C键的振动在 Raman光谱中分别在 594cm- 1( w)、62 6cm- 1( w)、634cm- 1( w)、641 cm- 1( w)。在红外光谱中 ,各种极性基团的振动表现的更明显 ,分别出现了 O- H、CH2 、C- O和 C=O的振动峰。

The Raman and IR spectra of β-trichlorogermyl propanoic acid and its derivatives have been measured. The Ge-Cl bond exhibits some very strong peaks between 400 cm -1 and 385 cm -1 in the Raman spectra. In contrast, the Ge-C bonds give only weak peaks between 641 cm -1 and 593 cm -1 . Peaks due to the polar groups in these compounds, such as C=O and OH, are not present in the Raman spectrum, but these modes can be easily characterized in the IR spectra.