ISSN:
1089-7690
Quelle:
AIP Digital Archive
Thema:
Physik
,
Chemie und Pharmazie
Notizen:
Energy disposal to the CO product formed upon the 351 nm photodissociation of W(CO)6 has been monitored using the method of time-resolved infrared laser absorption spectroscopy. The nascent CO product can be characterized by effective vibrational, rotational, and translational temperatures; Tv=1080±60 K, T0r(v=0)=560±50 K, and T0t(v=0 J=10) =1550±200 K. These results are considered in light of various models for energy disposal in the photofragmentation reaction. Vibrational energy disposal is consistent with a modified version of phase space theory termed "early'' phase space theory, EPST. Rotational and translational energy release is not consistent with phase space theory or its variants, e.g., EPST and the separate statistical ensembles model, but appears in qualitative accord with an impulsive model. We propose that, in general, vibrational energy release occurs early in the exit channel for the reaction, relative to rotational and translational energy release.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.455300
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