摘要
研究了三氯甲烷中咪唑（Ｉｍ）与氯代（对位单取代谷氨酸四苯基）卟啉铁（Ⅲ）（简记为ＦｅＬＧｌｕＣｌ）的轴向配位反应。用光度法测定了反应的平衡常数Ｋ，标准摩尔焓变△Ｈ０ｍ和标准摩尔熵变△Ｓ０ｍ。实验结果表明。
A thermodynamic study is reported on the axial coordination of para monosubstituted glutamic acid tetraphenylporphyrinatoiron(Ⅲ) chloride (FeL Glu Cl) with imidazole (Im) in trichloromethane.Not only the equilibrium constant (K) of reaction(1) by spectral technique,but also the standard change FeL Glu Cl+2Im[FeL Glu (Im) 2] +Cl -(1) of molar enthalpy ( △H 0 m ) and standard change of molar entropy ( △S 0 m ) of reaction(1) are calculated.The experimental results show that △H 0 m and △S 0 m of reaction (1) are negative values.
出处
《重庆师范学院学报（自然科学版）》
1996年第4期49-51,69,共4页
Journal of Chongqing Normal University(Natural Science Edition)
关键词
谷氨酸
卟啉铁
轴向配位反应
平衡常数
热力学
glutamic acid
porphyrinatoiron(Ⅲ)
axial coordination
equilibrium constant
