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Photodissociation study of 1,3-dibromopropane at 234 nm via an ion velocity imaging technique.

The photodissociation of 1,3-dibromopropane has been studied at 234 nm using a 2D photofragment ion velocity imaging technique coupled with a [2 + 1] resonance-enhanced multiphoton ionization scheme. The velocity distributions for the Br ( 2P1/2) (denoted Br) and Br (2P3/2) (denoted Br) fragments are determined, and each can be fitted by a narrow single-peaked Gaussian curve, suggesting that bromine fragments are generated as a result of direct dissociation via repulsive potential energy surfaces. The recoil anisotropies were measured to be beta = 0.80 for Br and 1.31 for Br, and the product relative quantum yields at 234 nm is Phi234 nm(Br) = 0.21.[1]

References

  1. Photodissociation study of 1,3-dibromopropane at 234 nm via an ion velocity imaging technique. Tang, Y., Ji, L., Zhu, R., Wei, Z., Zhang, B. The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment & general theory. (2005) [Pubmed]
 
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