Dynamics of CCl bond fission in photodissociation of 2-furoyl chloride (cas 1300-32-9) at 235 nm

Add time:08/10/2019    Source:sciencedirect.com

The photodissociation dynamics of 2-furoyl chloride at 235 nm has been investigated, employing resonance-enhanced multiphoton ionization technique and time-of-flight mass spectrometry. Both the Cl fragments, Cl(2PJ=3/2, relative quantum yield 0.85 ± 0.11) and Cl∗(2PJ=1/2), have the recoil anisotropy parameter (β) value close to zero, and show bimodal translational energy distributions. The branching ratio of the high kinetic energy CCl bond scission to the low energy CCl scission is 0.78/0.22. The dominant high kinetic energy channel arises mainly because of electronic pre-dissociation. But, the low energy channel results from the ground electronic state of 2-furoyl chloride, formed subsequent to non-radiative relaxation of the initially prepared excited state.

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