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在19种不同有机溶剂中测定γ-丁内酯的红外光谱,研究溶质-溶剂间相互作用,并进行了溶质的羰基伸缩振动频率位移与溶剂参数相关性分析。结果表明,在所考察的溶剂(除正己烷和环己烷外)中,γ-丁内酯与溶剂间形成非键缔合物。缔合物的羰基伸缩振动频率(带)和游离γ-丁内酯的羰基伸缩振动频率(带)位移与溶剂参数AN、S值、ET(30)值、G值、Swain参数Aj和Bj以及LSER间具有较好的线性相关性。溶剂与γ-丁内酯相互作用中,溶剂的接受电子对的能力和极性起着重要作用。这意味着溶剂与γ-丁内酯形成非键缔合物时的主要作用力是氢键作用和偶极-偶极作用。
The infrared spectra of γ-butyrolactone were determined in 19 different organic solvents. The solute-solvent interaction was also studied. The correlation between the carbonyl shift of solvent and the solvent parameters was also studied. The results show that the non-bonded association of γ-butyrolactone with the solvent is found in the solvents examined (other than n-hexane and cyclohexane). Carbonyl stretching vibration frequency (band) and carbonyl stretching vibration frequency (band) displacement of free γ-butyrolactone and solvent parameters AN, S value, ET (30) value, G value, Swain parameters Aj and Bj and LSER has a good linear correlation between. In the interaction of solvent with γ-butyrolactone, the solvent’s ability to accept electron pairs and polarity plays an important role. This means that the main forces at which the solvent forms non-bonded association with γ-butyrolactone are hydrogen bonding and dipole-dipole interactions.