Excimer dissociation in poly(1-vinyl naphthalene)

Abstract

Time-resolved fluorescence spectroscopy has been used to probe the formation and decay of excimeric sites in poly(1-vinyl naphthalene) in methylene chloride solution. Contrary to earlier reports, it has been found that reverse dissociation of excimers does occur appreciably at room temperature. Monomer fluorescence decay curves are thus represented by the sum of two exponential terms, and excimer curves by the difference in two exponentials. Lifetimes of 7.43 and 43.1 ns were obtained from the monomer and excimer fluorescence decay data. © 1978.