Kondratyuk, I.V.; Samijlenko, S.P.; Kolomiets, I.M.; Potyahaylo, A.L.; Hovorun, D.M.
(Биополимеры и клетка, 2000)
The prototropic molecular-zwitterionic tautomerism of xanthine and hypoxanthine has been investigated by the semi-empirical quantum-chemical AMI method. Geometric, energetic and other physico-chemical features of their ...