Proton-transfer reaction in the ground state of phenol–ammonia clusters: an experimental study

Autor:	Michel Vervloet, S. Martrenchard-Barra, D. Solgadi, C. Dedonder-Lardeux, Gilles Grégoire, Christophe Jouvet, I. Dimicoli
Rok vydání:	1999
Předmět:	Proton Chemistry Analytical chemistry General Physics and Astronomy Ionization Excited state Physics::Accelerator Physics Proton affinity Physical chemistry Molecule Physics::Chemical Physics Physical and Theoretical Chemistry Proton emission Nuclear Experiment Ground state Spectroscopy
Zdroj:	Chemical Physics Letters. 310:173-179
ISSN:	0009-2614
DOI:	10.1016/s0009-2614(99)00764-2
Popis:	The proton-transfer reaction in the ground state of phenol–ammonia clusters [PhOH(NH 3 ) n ] has been investigated by single-photon ionization spectroscopy using synchrotron radiation and a photoelectron photoion coincidence detection technique. The proton abstraction by the base (PhOH⋯(NH 3 ) n ⇔PhO − ⋯H + (NH 3 ) n ) depends on the proton affinity of ammonia clusters which increases with their size. The present experiment demonstrates that at least six ammonia molecules clustered with phenol are necessary to displace the equilibrium and induce the proton transfer in the ground state. The previous nanosecond and picosecond experiments on proton transfer occurring in the excited state of PhOH(NH 3 ) n are discussed in the light of these new results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::893e07e74b9f0826c159cef37219baac https://doi.org/10.1016/s0009-2614(99)00764-2 Zobrazit plný text záznamu Full Text from ScienceDirect