title: Nonradiative deactivation of singlet oxygen ((1)O2) by cubane and its derivatives.
abstract: The bimolecular quenching rate constants of singlet oxygen ((1)O2) by cubane and cubane derivatives were determined and found to be in the order of 10(3)-10(4) M(-1) s(-1). These values represent larger values than expected for aliphatic alkanes as a model for C-H vibrational deactivation. This result is explained by the occurrence of two different deactivation mechanisms: energy transfer to cubane C-H vibrational modes and the formation of a charge-transfer complex between (1)O2 and cubane ((1)O2(*-)...cubane(*+)).
authors.affiliation: Department of Chemistry, Columbia University, New York, New York 10027, USA.
authors.forename: Jeffrey R
authors.initials: JR
authors.lastname: Lancaster
authors.forename: Angel A
authors.initials: AA
authors.lastname: Martí
authors.forename: Juan
authors.initials: J
authors.lastname: López-Gejo
authors.forename: Steffen
authors.initials: S
authors.lastname: Jockusch
authors.forename: Naphtali
authors.initials: N
authors.lastname: O'Connor
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Turro