Remarkable homology in the electronic spectra of the mixed-valence cation and anion radicals of a conjugated bis(porphyrinyl)butadiyne.
The pi-radical cation and anion of the dizinc complex of a bis(triarylporphyrinyl)butadiyne, 1+ and 1-, respectively, display remarkably similar near-IR signatures, with intense bands near 1000 and 2500 nm, as predicted by the appropriate frontier-orbital model for inter-porphyrin coupling across the conjugated bridge.
School of Physical and Chemical Sciences, Queensland University of Technology, G.P.O. Box 2434, Brisbane, Australia 4001. d.arnold@qut.edu.au
Dennis P
DP
Arnold
Regan D
RD
Hartnell
Graham A
GA
Heath
Leonora
L
Newby
Richard D
RD
Webster