Electronic States of 1,3,5- (sym)- Triazine. II. Geometry of the singlet E'' and triplet E'' States in the Crystal.
Abstract
Through Stark, Zeeman, Zeeman-Stark, and absorption spectra of h3-, h2d1-, h1d2-, and d3-sym-triazine isotopes it has been determined that the lowest observed singlet-singlet transition and singlet-triplet transition of this molecule are both crystal field split by at least ca. 200/cm in the low temperature monoclinic crystal. The observed sharp crystal origins for singlet and triplet regions are assigned to transitions involving one component of the split excited states. From h2d1-, and h1d2-sym-triazine absorption intensity ratios for these transitions, it has been demonstrated that the excited state geometry is 'quinoidal' (i.e., four long and two short bonds) at 4.2 K in each excited state. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 20, 1973
- Accession Number
- AD0766848
Entities
People
- Elliot R. Bernstein
- Richard E. Smalley
Organizations
- Princeton University