H elimination and metastable lifetimes in the UV photoexcitation of diacetylene.

@article{Silva2008HEA,
  title={H elimination and metastable lifetimes in the UV photoexcitation of diacetylene.},
  author={Ruchira Silva and Wilson K Gichuhi and Cancan Huang and Michael B Doyle and Vadim V. Kislov and Alexander M. Mebel and Arthur G Suits},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2008},
  volume={105 35},
  pages={12713-8}
}
We present an experimental investigation of the UV photochemistry of diacetylene under collisionless conditions. The H loss channel is studied using DC slice ion imaging with two-color reduced-Doppler detection at 243 nm and 212 nm. The photochemistry is further studied deep in the vacuum UV, that is, at Lyman-alpha (121.6 nm). Translational energy distributions for the H + C(4)H product arising from dissociation of C(4)H(2) after excitation at 243, 212, and 121.6 nm show an isotropic angular… CONTINUE READING