Vibrational relaxation process of Carbon Monoxide after the electronic excitation of (ClCO)2

SALAS JUANA; LANFRI LUCÍA; BERASATEGUI MATÍAS; BURGOS PACI MAXIMILIANO; ARGÜELLO GUSTAVO

Mendoza

Congreso; 9th International Meeting on Photodynamics and Related Aspects; 2016

Universidad de Mendoza

The fragmentation of a molecule through absorption of one or more photons is called photodissociation. The electromagnetic energy of the light beam is converted into internal energy of the molecule by intramolecular transitions and if the transferred energy exceeds the binding energy of the weakest bond the molecule will break apart.Photodissociation is a fantastic field to study the internal dynamics of polyatomic molecules. In the last decades the interest on the study of primary photolysis processes of halogenated organic molecules has increased because of its relevance in atmospheric chemistry. In particular, time resolved spectroscopy studies allows to understand different aspects about photodissociation mechanisms.Suits and Lee studied the emission of ro-vibrationally excited carbon monoxide (CO*) after the photolysis of (ClCO)2 at different laser wavelengths namely, 193, 235 and 248 nm. They concluded that the energy balance for photolysis at 193 nm suggests that its mechanism of dissociation differs from that at 248 nm. The present work is aimed to study the ro-vibrational relaxation of CO* after the photolysis of (ClCO)2 at 266 nm using Nd:YAG laser operating with the proper harmonic generator module