Molecular dynamics and vibrational relaxations in liquid nitromethane.

I. Totally symmetric v₁ and v₅ modes

Maria Grazia Giorgini Dipartimento di Chimica Fisica ed Inorganica, Universitá di Bologna, viale del Risorgimento, 4, I-40136, Bologna, Italy

Leonardo Mariani Dipartimento di Chimica, Laboratorio di Chimica Fisica, Universitá di Perugia, via Elce di Sotto, 8, I-06100, Perugia, Italy

Assunta Morresi Dipartimento di Chimica, Laboratorio di Chimica Fisica, Universitá di Perugia, via Elce di Sotto, 8, I-06100, Perugia, Italy

Giulio Paliani Dipartimento di Chimica, Laboratorio di Chimica Fisica, Universitá di Perugia, via Elce di Sotto, 8, I-06100, Perugia, Italy

Rosario Sergio Cataliotti Dipartimento di Chimica, Laboratorio di Chimica Fisica, Universitá di Perugia, via Elce di Sotto, 8, I-06100, Perugia, Italy

Abstract

The vibrational relaxation processes of totally symmetric v ₁ (CH stretching and v ₅ (NO₂ bending) motions of liquid nitromethane have been studied as a function of temperature and concentration in CD₃NO₂ and CCl₄ solutions. The experimental vibrational correlation functions of these two modes have shown that relaxation is collision assisted and suitable for modelling with the stochastic Kubo-Rothschild theory.

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Molecular dynamics and vibrational relaxations in liquid nitromethane.

I. Totally symmetric v₁ and v₅ modes

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Molecular dynamics and vibrational relaxations in liquid nitromethane.

I. Totally symmetric v1 and v5 modes

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I. Totally symmetric v₁ and v₅ modes