中文摘要：

合成了一种新型的4-甲基-水杨酸铬（Ⅲ）配合物[Cr（Ⅲ）（4-Me-SA）（en）2]Cl·0.5CH3OH（4-Me-SA=4-甲基-水杨酸,en=乙二胺）,利用X射线晶体衍射和元素分析对其进行了结构表征.通过紫外-可见吸收光谱、荧光光谱、电导率等方法,研究了β-环糊精对两种铬配合物[Cr（Ⅲ）（4-Me-SA）（en）2]Cl·0.5CH3OH（I）和[Cr（Ⅲ）（SA）（en）2]Cl（Ⅱ）（SA=水杨酸）的包合行为,求取了不同温度下的包合常数,推断了包合反应的主要驱动力等.结果表明：298 K时β-环糊精与两种铬配合物均发生了自发包合作用,形成1∶1型超分子包合物,疏水性基团甲基的存在有利于包合反应的进行.与EDTA的竞争反应表明包合物的形成使铬配合物的稳定性增加.

英文摘要：

A new chromium（Ⅲ） complex [Cr（Ⅲ）（4-Me-SA）（en）2]Cl·0.5CH3OH（4-Me-SA=4-CH3-sali-cylic acid,en=ethylenediamine） was synthesized and characterized by elemental analysis and X-ray crys-tallography.The interaction of β-cyclodextrin and chromium（Ⅲ） complex [Cr（Ⅲ）（4-Me）（en）2]Cl· 0.5CH3OH（I） or [Cr（Ⅲ）（SA）（en）2]Cl（Ⅱ）（SA=salicylic acid） were studied by UV-Vis spectra,fluores-cence spectra and conductivity measurement.The inclusion constants at different temperature were calcu-lated and the main driving force of the inclusion was also discussed.The results indicated that an inclusion of β-cyclodextrin and chromium（Ⅲ） complex was formed in molar ratio of 1∶1 at 298 K.The presence of hydrophobic group methyl is advantageous to inclusion.The reactions with EDTA indicated that the stability of Cr（Ⅲ） complex was increased when it was included by β-cyclodextrin.