摘要
在分析影响醇类稀溶液红外光谱因素的基础上，以溶剂的电子给予数、折光率和相对介电常数为参数，对几种醇类稀溶液的红外位移（Δν）进行了关联计算。结果表明，标准偏差稍高于实验误差，比目前常用的关联式有所改善。还利用较高浓度下的红外光谱。
Based on analysing effects of aprotic slovents on infrared spectra for diluted alcohol solutions, infrared frequency shifts, Δν, were separated into two parts: the contributions of the van der Waals interaction (Δν vdw ) and the hydrogen bonding interaction (Δν HB ) between the alcohol and aprotic solvent. Electron donor numbers (DN), refractive index (n 25 D) and relative dielectric constants (ε) of solvents used to correlate infrared frequency shifts in these systems studied. The results indicated that the standard deviations are slightly larger than experimental errors, but much smaller than those obtained from the existing experience formulae. The cooperative effects of intermolecular hydrogen bonds in concentrated alcohol solutions are also discussed.
出处
《河南科学》
1997年第3期273-278,共6页
Henan Science
关键词
非质子溶剂
醇
溶液
红外光谱
Infrared spectra shift, Electron donor number, Cooperative effect in hydrogen bond formation
