Photodissociation of CH<sub>2</sub>ClCH<sub>2</sub>Iat 308 nm | CU Experts

The technique of photofragmentation translational spectroscopy has been used to study; the photodissociation of CH2ClCH2I at an excitation wavelength of 308 nm. The; exclusive dissociation pathway is C–I bond breakage with formation of CH2ClCH2 and; I(2P3/2). The centre‐of‐mass translational energy distribution of the photofragments; reveals that an average of about 50% of the excess energy appears in translation. The; angular distribution of dissociation products with respect to the laser polarization; indicates that the photodissociation process proceeds via a parallel transition—i.e., the; transition moment must be nearly parallel to the C–I bond. Exclusive production of; ground state I(2P3/2) with a parallel polarization dependence is unexpected based on the; prevailing picture for alkyl iodide photodissociation.

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