title: Comment on "Fermi resonance in solid CO2 under pressure" [J. Chem. Phys. 138, 074501 (2013)].
abstract: The purpose of this comment is to point out that for a really rigorous treatment of the Fermi resonance in crystalline CO2 it is necessary to go beyond a single molecule approach and to fully consider solid state effects.
authors.affiliation: Dipartimento di Chimica, Universita' di Firenze, Polo Scientifico di Sesto Fiorentino - Via della Lastruccia 3, Sesto Fiorentino (Firenze) 50019, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Cardini
authors.affiliation: Dipartimento di Chimica, Universita' di Firenze, Polo Scientifico di Sesto Fiorentino - Via della Lastruccia 3, Sesto Fiorentino (Firenze) 50019, Italy.
authors.forename: V
authors.initials: V
authors.lastname: Schettino