5Z93L87A1R 1 Adenine 1 B3LYP and MP2 levels of QM theory 1 CH···N H-bond 1 Guanine 1 JAC85A2161 1 Journal Article 1 plus ... NBO parameters along the IRC 1 NH···HC dihydrogen bond 1 QTAIM analysis 1 Research Support, Non-U.S. Gov't 1 adenine·guanine (A·G) DNA base mispair 1 amino and imino tautomers of the adenine 1 cooperativity of the H-bonds 1 electron-topological geometric 1 keto and enol tautomers of the guanine 1 polar 1 sweeps of the energetic 1 the double proton transfer 1 moins ...