Ralph L. Brookfield, H. Ellul, A. Harriman
Nov 1, 1985
Citations
0
Influential Citations
35
Citations
Journal
Journal of Photochemistry
Abstract
Abstract meso -Tetrakis( N -methyl-4-pyridyl)porphine (H 2 TMPyP(4) 4+ ) undergoes dimerization in aqueous solution. The dimer is believed to possess a stacked face-to-face configuration with the two porphyrin rings held about 1 nm apart. Fluorescence from the dimer is red shifted relative to the monomer but it is not quenched. The other isomeric H 2 TMPyP 4+ compounds together with metal chelates and the conjugate diacids exist only as monomeric species in aqueous solution (below 10 −4 mol dm −3 ).