Lewis Frederick D, Zuo Xiaobing, Liu Jianqin, Hayes Ryan T, Wasielewski Michael R
Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA.
J Am Chem Soc. 2002 May 1;124(17):4568-9. doi: 10.1021/ja0177859.
The dynamics of photoinduced electron transfer has been investigated in DNA hairpins possessing a stilbenedicarboxamide (Sa) electron acceptor, a guanine (G) primary donor, and two adjacent guanines (GG) as secondary donors. Hole transport from G to GG across a single A is more rapid than across AA or T by factors of 20 +/- 7 and 40 +/- 15, respectively. Intrastrand hole transport across a single A is more rapid than interstrand transport by a factor of 7 +/- 3.
在含有二苯乙烯二甲酰胺（Sa）电子受体、鸟嘌呤（G）作为主要供体以及两个相邻鸟嘌呤（GG）作为次要供体的DNA发夹结构中，对光诱导电子转移的动力学进行了研究。从G到GG跨单个腺嘌呤（A）的空穴传输比跨两个腺嘌呤（AA）或胸腺嘧啶（T）分别快20±7倍和40±15倍。跨单个A的链内空穴传输比链间传输快7±3倍。
