Affordable Access

An experimental value for the B1u C-H stretch mode in benzene.

Authors
Publication Date
Disciplines
  • Physics

Abstract

We here present experimental infrared spectra on two (C₆H₆)(C₆D₆) benzene dimer isomers in the gas phase. The spectra show that the two benzene molecules in the dimer are symmetrically inequivalent and have distinct IR signatures. One of the two molecules is in a site of low symmetry, which leads to the IR activation of fundamental modes that are IR forbidden by symmetry in the monomer. In the spectra, all four fundamental C–H stretch modes of benzene are observed. Modes in the dimer are shifted up to 3 cm–1 to the red, compared to the modes that are known for the monomer. For the ν13 B1u C–H stretch fundamental mode of benzene, a first experimental value of 3015 +2–5 cm–1 is determined, in excellent agreement with anharmonic frequency calculations presented here.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

An experimental value for the B(1u) C-H stretch mo...

on The Journal of Chemical Physic... May 07, 2006

Kinematic perturbations on the benzene1B2u←1A1gtwo...

on Chemical Physics Letters Dec 01, 1980

Moderate-resolution study of the two-photon spectr...

on Chemical Physics Letters Jan 01, 1974

Non-radiative decay of the benzene1B2uand3B1ustate...

on Chemical Physics Letters Jan 01, 1976
More articles like this..