ENHANCEMENT OF FLUORESCENCE QUENCHING RATE BY COAGGREGATION  

作　　者：Jin Tao ZHANG Xi Lin CUI Guo Zhen Jl Xi Kui JIANG Shanghai Institute of Organic Chemistry,Academia Sinica,345 Ling-ling Lu,Shanghai 200032Zhen He TONG The Laboratory of Photochemistry,Institute of Photographic Chemistry,Academia Sinica,Beijing 100101 

出　　处：《Chinese Chemical Letters》1993年第8期703-706,共4页中国化学快报（英文版）

摘　　要：Fluorescence quenching of 1-dodecyl-β-Naphthoate(Np-12)by para- nitrophenyl alkanoates(Cn,n=2,8,12,16,18,20)was investigated in both 40:60 v/v(φ=0.40)dioxane(DX)-H_2O mixture and pure dioxane.The fluorescence quenching rate constants,kq's,have been measured.It has been found that in the solvents with large aggregating power,coaggregation between Np-12 and long-chain Cn's will increase kq values.Fluorescence quenching of 1-dodecyl-β-Naphthoate(Np-12)by para- nitrophenyl alkanoates(Cn,n=2,8,12,16,18,20)was investigated in both 40:60 v/v(φ=0.40)dioxane(DX)-H_2O mixture and pure dioxane.The fluorescence quenching rate constants,kq's,have been measured.It has been found that in the solvents with large aggregating power,coaggregation between Np-12 and long-chain Cn's will increase kq values.

分 类 号：O6[理学—化学]