title: Mid-IR spectroscopy and structural features of protonated carbonic acid in the gas phase.
abstract: An anti trihydroxycarbenium ion is revealed to be the gas-phase structure of protonated carbonic acid by IR multiple-photon dissociation spectroscopy (see picture for calculated structure and comparison of experimental and computed spectra). Deprotonation yields anti-H(2)CO(3) with a nominal gas-phase basicity of 724 kJ mol(-1).
authors.affiliation: Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma La Sapienza, P.le A. Moro 5, 00185, Roma, Italy.
authors.forename: Barbara
authors.initials: B
authors.lastname: Chiavarino
authors.forename: Maria Elisa
authors.initials: ME
authors.lastname: Crestoni
authors.forename: Simonetta
authors.initials: S
authors.lastname: Fornarini
authors.forename: Francesco
authors.initials: F
authors.lastname: Lanucara
authors.forename: Joel
authors.initials: J
authors.lastname: Lemaire
authors.forename: Philippe
authors.initials: P
authors.lastname: Maitre