title: Structure and photophysics of beta-Octafluoro-meso-tetraarylporphyrins.
abstract: The structure of THF-coordinated [2,3,7,8,12,13,17,18-octafluoro-5,10,15,20-tetraphenylporphinato]zinc, Zn(F(8)TPP).THF, and photophysical studies of 2,3,7,8,12,13,17,18-octafluoro-5,10,15,20-tetraphenylporphyrin, F(8)TPP, Zn(F(8)TPP), 2,3,7,8,12,13,17,18-octafluoro-5,10,15,20-tetrakis(pentafluorophenyl)porphyrin, F(28)TPP, and [2,3,7,8,12,13,17,18-octafluoro-5,10,15,20-tetrakis(pentafluorophenyl)porphinato]zinc, Zn(F(28)TPP), in benzonitrile, are reported. A key point from these studies is that the octafluorinated F(8)TPP and perfluorinated F(28)TPP porphyrins possess similar absorption spectra, but dissimilar X-ray crystal structures and disparate photophysical characteristics. These data cannot be easily accommodated within currently accepted theories which relate macrocycle distortion and optoelectronic properties.
authors.affiliation: Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, USA.
authors.forename: V V
authors.initials: VV
authors.lastname: Smirnov
authors.forename: E K
authors.initials: EK
authors.lastname: Woller
authors.forename: D
authors.initials: D
authors.lastname: Tatman
authors.forename: S G
authors.initials: SG
authors.lastname: DiMagno