A study on inclusion complexes of cyclodextrins with 5,10,15,20-tetrakis(4-propylpyridinium) porphyrin bromide by spectral analysis and thermodynamics

作者：Yang P^*; Fan XY; Chen SR; Han GY

来源：Acta Chimica Sinica, 2001, 59(10): 1550-1556.

• cyclodextrins
• 5,10,15,20-tetrakis (4-propylpyridinium) porphyrin bromide
• inclusion
• spectral analysis
• molecular modeling
• thermodynamics

The inclusion complexes of cyclodextrins with 5, 10, 15, 20 - tetrakis (4 - propylpyridinium) porphyrin bromide were confirmed by UV, fluorescence spectra and NMR, respectively. The molecular modeling provided further evidence for the formation of the inclusion complexes. The effect of temperature on the reaction was studied through thermodynamics. The changes of entropy, enthalpy and free energy of the reaction were calculated and the entropy - enthalpy compensation plot of the inclusion complexes of porphyrin and CyDs was then studied, which led to the conclusion that enthalpy is the main impetus for the inclusion reaction.

• 出版日期2001
• 单位山西大学