Preparation and photoelectron spectrum of the glycine molecular anion: assignment to a dipole-bound electron species with a high-dipole moment, non-zwitterionic form of the neutral core

J Chem Phys. 2004 Jun 1;120(21):9899-902. doi: 10.1063/1.1755196.

Abstract

We report the gas-phase preparation of negatively charged glycine as well as the Gly(H(2)O)(1,2) (-) complexes by entrainment of the neutral precursor into an ionized supersonic expansion tuned to optimize the (H(2)O)(n) (-)Ar(m) clusters. The photoelectron spectrum of Gly(-) displays the signature of a dipole-bound species, with sufficient vibrational fine structure to characterize the core neutral as a higher energy, non-zwitterionic isomer of the amino acid.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Anions
  • Computer Simulation
  • Electrochemistry / methods*
  • Electromagnetic Fields
  • Electrons
  • Gases / chemistry
  • Glycine / chemistry*
  • Light
  • Models, Chemical*
  • Models, Molecular*
  • Photochemistry / methods*
  • Spectrum Analysis
  • Static Electricity

Substances

  • Anions
  • Gases
  • Glycine