Laser photolysis of interaction of poly-guanylic acid (5') with anthraquinone-2-sulfonate  

作　　者：马建华 韩镇辉 林维真 姚思德 王文峰 林念芸 

出　　处：《Science China Chemistry》2002年第4期384-388,共5页中国科学（化学英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 39830090).

摘　　要：The electron transfer reaction between triplet anthraquinone-2-sulfonate and poly-guanylic acid (5’) in CH3CN-H2O (97 : 3) has been investigated by 248 nm (KrF) laser flash photolysis. The transient absorption spectra and kinetics obtained from the interaction of triplet anthraquinone-2-sulfonate and poly[G] demonstrate that the primary ionic radical pair, radical cation of poly[G] and radical anion of anthraquinone-2-sulfonate have been detected simultaneously. The free energy changes in the process of the electron transfer were also calculated.The electron transfer reaction between triplet anthraquinone-2-sulfonate and poly-guanylic acid (5') in CH3CN-H2O (97 : 3) has been investigated by 248 nm (KrF) laser flash photolysis. The transient absorption spectra and kinetics obtained from the interaction of triplet anthraquinone-2-sulfonate and poly[G] demonstrate that the primary ionic radical pair, radical cation of poly[G] and radical anion of anthraquinone-2-sulfonate have been detected simultaneously. The free energy changes in the process of the electron transfer were also calculated.

关 键 词：anthraquinone-2-sulfonate poly[G] laser photolysis. 

分 类 号：O644[理学—物理化学]