Scheidt W Robert, Cheng Beisong, Oliver Allen G, Goodwin John A
Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA; Department of Chemistry and Physics, Coastal Carolina University, Conway, SC 29528, USA.
J Porphyr Phthalocyanines. 2015 Dec;19(12):1256-1261. doi: 10.1142/S1088424615501084.
The crystallization and the crystal and molecular structure of a very slightly soluble electrostatically interacting pair of porphyrins is described. The tetra-anion 5,10,15,20-tetrakis-(4-sulfonatophenyl)-21,23H-porphyrin [HTPPSO] and the tetra-cation 5,10,15,20-tetra(N-methylpyridyl)21H,23H-porphyrin [HTMePyP] are found to form an alternating one-dimensional stack that is stabilised by electrostatic interactions between the porphyrin rings but also by interactions between all substituted phenyl rings in the ensemble. The resulting interactions between the porphyrins is exceptionally tight.