Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, USA.
Chem Commun (Camb). 2019 Apr 4;55(29):4174-4177. doi: 10.1039/c9cc01105f.
Changing the solvent from H2O to D2O dramatically affects the branching of the initial excited electronic states in an alternating G·C DNA duplex into two distinct decay channels. The slower, multisite PCET channel that deactivates more than half of all excited states in D2O becomes six times weaker in H2O.
将溶剂从 H2O 改为 D2O 会显著影响交替 G·C DNA 双链体中初始激发电子态向两个不同衰减通道的分支。在 D2O 中，使超过一半激发态失活的较慢的多部位质子电子转移（PCET）通道在 H2O 中变得弱了六倍。
