Photoinduced electron transfer variables: rigidity or orientation?

D. G. Seapy*, S. S.H. Al-Mahmoodi, N. M.M. Al-Belushi, F. A.M. Al-Mjeni

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The relatives photoreactives of bridged-ring systems 1, 3, 5-X and 6-X (X ≡ Cl or Br) have been studied at 254 nm in acetic acid. The formation of photosolvolysis product was rationalized in terms of photoinduced intramolecular electron transfer (ET) processes. The relative ease of ET in these donor-bridge-acceptor model system was analyzed in terms of known ET variables including free-energy changes, orientation effects and ridigity effects. The observed relative photoreactivities agreed better with the calculated free-energy changes when relative rigidities of the electron acceptor termini were evaluated. In general, the more rigid system were more photoreactive.

Original languageEnglish
Pages (from-to)241-249
Number of pages9
JournalJournal of Photochemistry and Photobiology, A: Chemistry
Issue number1-3
Publication statusPublished - May 31 1994

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • General Physics and Astronomy


Dive into the research topics of 'Photoinduced electron transfer variables: rigidity or orientation?'. Together they form a unique fingerprint.

Cite this