Naphthalene-d8 Phosphorescence in Pressure-Perturbed Media at 70K.
Abstract
The phosphorescence spectrum and triplet lifetime of naphthalene-d8 have been measured as a function of pressure (1 atm-35 kbar) at 77K in five matrices: poly(methylmethacrylate), EPA (ether-isopentane-alcohol), perfluoromethylcyclohexane, pentane and benzophenone. Compression of these matrices results in strong spectral broadening which is attributed to increased solvent inhomogeneity and enhanced coupling with the lattice. The pressure-induced shift in the triplet energy is sensitive to the detailed interactions of host molecules with the solute molecule, and provides qualitative attitudes about the various types of interactions responsible for solvent perturbations of electronic processes. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1973
- Accession Number
- AD0764959
Entities
People
- H. W. Offen
- R. A. Beardslee
Organizations
- University of California, Santa Barbara