Close MenuClose
Close Menu

Bradley F . Parsons, PhD

Assistant Professor

Bradley Parsons

Contact

College of Arts and Sciences
Chemistry
Chemistry Faculty
HLSB - Hixson Lied Science Building

Bradley F . Parsons, PhD

Assistant Professor

Research Focus

I am interested in the photochemistry of small gas phase complexes.  In my lab, a complex between two gas phase species is formed in a pulsed supersonic expansion.  The supersonic expansion cools internal molecular motions and may condense species into small clusters.  The resulting molecular beam is skimmed and passed into a mass spectrometer that uses conventional velocity map imaging (VMI) ion optics.  Inside the VMI ion optics, the molecular beam is intersected by a tunable pulsed laser that photolyzes the complex resulting in a variety of photofragments.  The photofragments are then ionized by the same laser pulse and the resulting cations are projected onto a 2D position sensitive detector.  Ions impact the detector according to their center-of-mass velocity from the original photodissociation and an image of the detector is recorded using a CCD.  The 2D image corresponds to the Abel transform of the original 3D photofragment distribution.  Thus, from the 2D image, the original 3D center-of-mass velocity distribution is obtained and then converted into a center-of-mass recoil kinetic energy distribution P(ET).  The resulting P(ET) contains information on the internal state(s) of the partner fragment formed during photolysis of the complex.

Department

Chemistry and Biochemistry

Position

Assistant Professor

Articles

  • Journal of Physical Chemistry A

    126, p. 1386-1392 2022
  • Journal of Physical Chemistry A

    125, p. 8649-8657 2021
  • Journal of Physical Chemistry A
    Photodissociation of the N2-NO complex between 225.8 and 224.0 nm. (accepted) 2021
  • Journal of Physical Chemistry A
    Investigation of O2-X (X = Pyrrole or Pyridine) Cluster Photodissociation Near 226 nm.
    124, p. 10152-10161 2020
  • Journal of Chemical Physics
    Sheehan, Sean M., Parsons, Bradley F., Yen, Terry A., Furlanetto, Michael R., Neumark, Daniel M. Anion photoelectron spectroscopy of C5H-
    128, p. 174301 2008
  • Journal of Chemical Physics
    Sheehan, Sean M., Parsons, Bradley F., Zhou, Jia, Garand, Etienne, Yen, Terry A., Moore, David T., Neumark, Daniel M. Characterization of cyclic and linear C3H- and C3H via anion photoelectron spectroscopy
    128, p. N.PAG 2008