Tautomerization of nucleobase model compounds: the 4-pyridinol and 4(1H)-pyridinone monomers and their dimers

Research into the energetics of gas-phase tautomerization of both monomers and dimers of the 4-pyridinol and 4(1H)-pyridinone molecules is presented. The hydrogen-bond energies show a strong preference for 4(1H)-pyridinon-containing dimers.