摘要
利用红外光谱研究了不同浓度氯化钙甲醇溶液中离子-溶剂和离子-离子的相互作用。溶剂分子谱带的变化说明了钙离子与甲醇分子发生了强烈的相互作用,这种作用主要是通过C-O中的氧原子实现,而溶剂甲醇分子的O-H谱带的偏移主要是离子(浓度)促使氢键发生改变。通过对光谱曲线的拟合,可定量计算阳离子溶剂化数,进一步揭示了溶剂化过程的微观性质。
Infrared spectrometry was applied to the study of intereactions between ion and solvent as well as between ion and ion in methanolic solution of calcium chloride with different concentrations. As shown by changes of malecular band of the solvent, strong interaction occurred between Ca^2＋ ion and methanol mainly through oxygen atom of the C-O structure, shifts of bond of O--H group in methanol was ascribed to the change of hydrogen bond impelled by the concentration of ions. Through deconvolution of the spectra obtained, solvation number of the cation was calculated quantitatively. The micro-characteristic of the solvation process was further revealed.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2008年第4期310-313,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
