Arresting intermediate states in a chemical reaction on a femtosecond time scale: proton transfer in model base pairs

Autor:	D. E. Folmer, L. Poth, A. W. Castleman, E. S. Wisniewski
Rok vydání:	1998
Předmět:	Proton Concerted reaction Chemical physics Chemistry Femtosecond Elementary reaction Coulomb explosion General Physics and Astronomy Physical and Theoretical Chemistry Atomic physics Chemical reaction Tautomer Excitation
Zdroj:	Chemical Physics Letters. 287:1-7
ISSN:	0009-2614
DOI:	10.1016/s0009-2614(98)00138-9
Popis:	A new concept to study the dynamics of chemical reactions in real time is presented using the phenomenon of Coulomb explosion to arrest and directly interrogate the intermediates in a chemical reaction. This technique is employed to study the tautomerization reaction of the model DNA base pair 7-azaindole, providing direct mass spectral evidence of a stepwise versus a concerted mechanism for the proton transfer upon excitation into the S1 state.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::25f2e570e43100e1f7ecfe1da261e3ea https://doi.org/10.1016/s0009-2614(98)00138-9 Zobrazit plný text záznamu Full Text from ScienceDirect