Abstract
A photoexcited state of molecular iodine in solution is observed using diffuse x-ray scattering at a synchrotron source. The measured changes in the diffuse scattering profile were consistent with earlier models of iodine's photodissociation and geminate recombination reaction, for which the recombined state has a 0.4 Å greater interatomic spacing than the resting state and has a lifetime of 500 ps in . This technique should find application in the study of increasingly complicated photochemical systems which undergo structural rearrangements following rapid photolysis.
- Received 30 March 2001
DOI:https://doi.org/10.1103/PhysRevLett.87.195508
©2001 American Physical Society