Infrared Fingerprint of Protonated Benzene in the Gas Phase | Zendy

Jones William | Zendy; Boissel Pierre | Zendy; Chiavarino Barbara | Zendy; Crestoni Maria Elisa | Zendy; Fornarini Simonetta | Zendy; Lemaire Joël | Zendy; Maitre Philippe | Zendy

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Infrared Fingerprint of Protonated Benzene in the Gas Phase

Author(s) -

Jones William,

Boissel Pierre,

Chiavarino Barbara,

Crestoni Maria Elisa,

Fornarini Simonetta,

Lemaire Joël,

Maitre Philippe

Publication year - 2003

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200250708

Subject(s) - protonation , infrared multiphoton dissociation , benzene , dissociation (chemistry) , chemistry , photochemistry , infrared , ion , gas phase , photodissociation , infrared spectroscopy , analytical chemistry (journal) , organic chemistry , physics , optics

A σ and not a π complex has been identified for the prototypical arenium intermediate, protonated benzene. The activation of the infrared multiphoton dissociation of C 6 H 7 + ions (obtained by the gas‐phase protonation of benzene) by the absorption of free electron laser radiation shows a wavelength‐dependent dissociation of H 2 (see spectrum) that matches the transitions calculated for the σ complex benzenium ion.

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