Thermodynamic Properties of Transfer for Tetraphenylarsonium Tetraphylborate from Water to n-Alkanols  

作　　者：邹立壮 王晓玲 朱书全 韦鲁滨 路遥 王金本 

出　　处：《Chinese Journal of Chemistry》2002年第9期822-828,共7页中国化学（英文版）

基　　金：theNationalNaturalScienceFoundationofChina (No.5 0 0 74 0 33)

摘　　要：bInstitute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China Solubilities of tetraphenylarsonium tetraphenylborate (Ph 4AsB Ph 4) in water, methanol, ethanol, 1 propanol, 1 butanol, 1 pentanol, 1 hexanol and 1 octanol at T =293.2, 298.2, 303.2 and 308.2 K have been determined by spectrophotometry. The standard transfer Gibbs energy ( Δ tr G 0 w→s ) and entropy ( Δ tr S 0 w→s ) of Ph 4AsBPh 4 from water to the n alkanols at temerature from 293.2 K to 308.2 K have been obtained. Furthermore, the contribution of microscopic interaction to the standard Gibbs energy of transfer for Ph 4AsBPh 4 was calculated and discussed. The results show that the effect of hydrophobic interaction of Ph 4AsBPh 4 on its transfer process is the most important factor. According to the thermodynamical principle, the transfer process of Ph 4AsBPh 4 from water to the n alkanols is the entropy dominanted.bInstitute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China Solubilities of tetraphenylarsonium tetraphenylborate (Ph 4AsB Ph 4) in water, methanol, ethanol, 1 propanol, 1 butanol, 1 pentanol, 1 hexanol and 1 octanol at T =293.2, 298.2, 303.2 and 308.2 K have been determined by spectrophotometry. The standard transfer Gibbs energy ( Δ tr G 0 w→s ) and entropy ( Δ tr S 0 w→s ) of Ph 4AsBPh 4 from water to the n alkanols at temerature from 293.2 K to 308.2 K have been obtained. Furthermore, the contribution of microscopic interaction to the standard Gibbs energy of transfer for Ph 4AsBPh 4 was calculated and discussed. The results show that the effect of hydrophobic interaction of Ph 4AsBPh 4 on its transfer process is the most important factor. According to the thermodynamical principle, the transfer process of Ph 4AsBPh 4 from water to the n alkanols is the entropy dominanted.

关 键 词：tetraphenylarsonium tetraphenylborate n    alkanol SOLUBILITY standard transfer thermodynamic property activity coefficient microscopic interaction 

分 类 号：O621.1[理学—有机化学]