Intramolecular excimer formation dynamics of bis (9-fluorenyl) methane

Young Boong Chung, Du Jeon Jang, Dongho Kim, Minyung Lee, Hyun Sook Kim, Bong Hyun Boo

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

As a continuing effort to explore molecular systems suitable to test the one-dimensional Kramers' theory, the conformational change of bis(9-fluorenyl)methane (9-BFM) as studied in n-alkane solvents, using the time-correlated single photon counting method. The excimer formation processes of this molecule consist of a fast ( τF ≈ 1 ns) and a relatively slow (τF ≈ 5 ns) channel at ambient temperature. The viscosity dependence is mild as observed previously in bifluorene and the Arrhenius plot gives the activation energy of 3.7 kcal/mol for the slow intramolecular excimer formation process.

Original languageEnglish
Pages (from-to)453-458
Number of pages6
JournalChemical Physics Letters
Volume176
Issue number5
DOIs
Publication statusPublished - 1991 Jan 25

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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