A New Approach toward Transition State Spectroscopy

Kirill Prozument; Rachel Glyn Shaver; Monika A. Ciuba; John S. Muenter; G. Barratt Park; John F. Stanton; Hua Guo; Bryan M. Wong; David S. Perry; Robert W. Field

doi:10.1039/c3fd20160k

A New Approach toward Transition State Spectroscopy

Chemical Physics 2017-02-08 v1 Atomic and Molecular Clusters Optics

Authors: Kirill Prozument , Rachel Glyn Shaver , Monika A. Ciuba , John S. Muenter , G. Barratt Park , John F. Stanton , Hua Guo , Bryan M. Wong , David S. Perry , Robert W. Field

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Abstract

Chirped-Pulse millimetre-Wave (CPmmW) rotational spectroscopy provides a new class of information about photolysis transition state(s). Measured intensities in rotational spectra determine species-isomer-vibrational populations, provided that rotational populations can be thermalized. The formation and detection of S0 vinylidene is discussed in the limits of low and high initial rotational excitation. CPmmW spectra of 193 nm photolysis of Vinyl Cyanide (Acrylonitrile) contain J=0-1 transitions in more than 20 vibrational levels of HCN, HNC, but no transitions in vinylidene or highly excited local-bender vibrational levels of acetylene. Reasons for the non-observation of the vinylidene co-product of HCN are discussed.

Keywords

atomic spectroscopy

Cite

@article{arxiv.1312.6345,
  title  = {A New Approach toward Transition State Spectroscopy},
  author = {Kirill Prozument and Rachel Glyn Shaver and Monika A. Ciuba and John S. Muenter and G. Barratt Park and John F. Stanton and Hua Guo and Bryan M. Wong and David S. Perry and Robert W. Field},
  journal= {arXiv preprint arXiv:1312.6345},
  year   = {2017}
}

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A New Approach toward Transition State Spectroscopy

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