Accession Number:

ADA088522

Title:

Vibronic Assignments and Vibronic Coupling in the 1E' State of Sym-Triazine by Two Photon Spectroscopy.

Descriptive Note:

Technical rept.,

Corporate Author:

COLORADO STATE UNIV FORT COLLINS DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1980-08-11

Pagination or Media Count:

60.0

Abstract:

Two photon photoacoustically detected spectra are reported for the first excited singlet state 1E of sym-triazine in the gas phase. The origin has been positively identified as of E symmetry through contour calculations and hot band observations. The excited state absorption is dominated by a highly irregular progression. Observations are strongly supported by a Jahn Teller calculation which predicts little coupling between A2 and E electronic manifolds a large quadratic coupling and a small linear coupling in the E manifold and a quenched angular momentum in this state. Good agreement is shown to exist between one photon and two photon spectroscopic observations and the calculations.

Subject Categories:

  • Organic Chemistry
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE