Motion of the hydrogen bond proton in cytosine and the transition between its normal and imino states

Zhen-Min Zhao, Qi-Ren Zhang, Chun-Yuan Gao +1

The potential energy surface of the H13 proton in base cytosine of the DNA molecules is calculated {\it ab initio} at the Gaussian98 MP2/6-311G(d,p) level. Two potential wells are…