β-环糊精存在下直链脂肪醇诱导1-溴萘室温磷光光谱研究  

Room-temperature Phosphorescence of 1-Bromonaphthalene Induced by Straight-line Alcohols in the Presence of β-Cyclodextrin

作　　者：杜新贞 张勇[2] 江云宝[1] 林丽榕[1] 黄贤智[1] 陈国珍[1] 

机构地区：[1]厦门大学化学系 [2]厦门大学环境科学研究中心,厦门361005

出　　处：《高等学校化学学报》1997年第12期1935-1938,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：研究了β-环糊精（β-CD）溶液中直链脂肪醇（A）诱导1-溴萘（1-BrN）的室温磷光光谱性质．结果表明，三元包络物中1-BrN分子的磷光起初随醇中碳原子数的增加而增强，正戊醇对磷光呈现最大的敏化作用，随后从正己醇至正辛醇，磷光强度逐渐下降．测定了包络物组成和稳定常数，发现1-BfN和A：β-CD包络物的结合强度是三元包络物磷光强弱的决定性因素，并从三元包络物可能的结构解释了醇分子大小对室温磷光的影响．Room-temperature phosphorescence of 1-bromonaphthalene (1-BrN) induced byaliphatic alcohols(A) was investigated in aqueous aerated g-cyclodextrin(P-CD) solution. Itfollows that 1-BrN phosphorescence intensity initially increases with the increasing numberof the carbon atoms in an alcohol. n-Pentanol exhibits the most pronounced phosphorescenceenhancement, and subsequently the phosphorescence intensity gradually decreases from n-hexanol to n-octanol. The stoichiometry and the equilibrium constants of a ternary complexwere determined. It has been found that the binding of 1-BrN to A: P-CD complex is a pre-dominant factor of phosphorescence enhancement. The effect of alcohols on RTP was ex-plained on the basis of the molecular size.

关 键 词：1-溴萘 Β-环糊精 脂肪醇 包络物 室温磷光 

分 类 号：O625.23[理学—有机化学] O636.12[理学—化学]