Dimerization of tetracationic porphyrins: ionic strength dependence

摘要: Abstract Cationic porphyrins are under study in a number of contexts including their interaction with biological targets, as possible therapeutic agents and building blocks for molecular devices such photodiodes solar cells. Many cationic dimerize readily aqueous solution. Dimerization turn can control the properties porphyrin well its binding to target. The propensity solution be estimated by recording optical spectrum function concentration added salt. Analysis data terms Debye–Huckel formalism gives an estimate extent dimerization ionic strength. Data TMPyP4 [ meso -tetrakis(4- N -methylpyridinium)porphyrin] butyl octyl homologs; TMAP , -trimethylanilinium)porphyrin]; T Θ OPP -tetrakis[4- -[(3-(trimethyl-ammonio)propyl)oxy]phenyl]porphyrin] ferrocenyl P3Fc discussed. may affect e.g., DNA.