引用本文:
龚桦, 姜永基, 王贻, 陈铭之, 郑国康. 某些Lewis碱与CCl4和CHCl3在298.15K的过量体积[J]. 物理化学学报,
1991, 7(01): 49-56.
doi:
10.3866/PKU.WHXB19910108
Citation: ng Hua, Jiang Yong-Ji, Wang Yi, Chen Ming-Zhi, Zheng Guo-Kang. Excess Volumes for (Tetrachlorloromethane+Lewis Bases) and for (Trichloromethane+Lewis Bases)[J]. Acta Physico-Chimica Sinica, 1991, 7(01): 49-56. doi: 10.3866/PKU.WHXB19910108
Citation: ng Hua, Jiang Yong-Ji, Wang Yi, Chen Ming-Zhi, Zheng Guo-Kang. Excess Volumes for (Tetrachlorloromethane+Lewis Bases) and for (Trichloromethane+Lewis Bases)[J]. Acta Physico-Chimica Sinica, 1991, 7(01): 49-56. doi: 10.3866/PKU.WHXB19910108
某些Lewis碱与CCl4和CHCl3在298.15K的过量体积
摘要:
在298.15 K下用连续稀释膨胀计或振动管密度计测量了二甲基甲酰胺(DMF)、二甲基乙酰胺(DMA)、N-甲基吡咯烷酮(NMP)、γ-丁内酯(γ-BL)、二甲基亚砜(DMSO)分别与四氯化碳和三氯甲烷构成的二元系的过量体积。除DMSO+CHCl_2二元系的V~(E-x)曲线为S形外, 其余二元系的V~E值均为负值。在所研究的两个系列中, |V_(min)~E|的大小顺序均为:
NMP>γ-BL>DMF≈DMA>DMSO
NMP>γ-BL>DMF≈DMA>DMSO
English
Excess Volumes for (Tetrachlorloromethane+Lewis Bases) and for (Trichloromethane+Lewis Bases)
Abstract:
Excess volumes have been measured by means of a continuous dilution dilatometer or a vibrational tube densimeter for both tetrachloromethane and trichloromethane+N,N-dimethylformamide (DMF), +N,N-dimethylacetamide (DMA), +N-methylpyrrolidone(NMP), +γ-butyroIactone(γ-BL) , +dimethysulfoxide(DMSO), at 298.15 K V~E values are negative over the entire range of composition for all systems except (trichloromethane + dimethylsulfoxide) which exhibits a sigmoid curve with negative values in the trichloromethane rich region. |V_(min)~E| values of the two series decrease in the order NMP>γ-BL>DMF≈DMA?DMSO. The results are interpreted in terms of forming charge-transfer complexes between tetrachloromethane and Lewis bases, and forming hydrogen-bonding associations between trichloromethane and Lewis bases respectively.
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