Interaction of water-soluble cationic porphyrin with anionic surfactant

Centrally Coordinated Cobalt Porphyrin Monolayers on the Surface of TiO2 Nanoparticles

“…The difference is due to a change of the p-p interaction between CoTAPPI molecules at higher concentration of the CoTAPPI. [10] When the APTS molecules are added into the CoTAPPI solution, the p-p interaction between CoTAPPI molecules is weakened as a result of keeping the distance of CoTAPPI molecules by APTS in complex 1.…”

“…According to Equation (2), r, r complex and r CoTAPPI are calculated, so f CoTAPPI and f complex are obtained from Equations (9) and (10). Depending on the content of original materials, from equation 6 and equation 8, K 1 and K 2 are calculated to be K 1 ¼ 7.21 Â 10 3 (molÁL À1 ) À1 and K 2 ¼ 7.62 Â 10 6 (molÁL À1 ) À2 .…”

“…On the one hand, the substituents of the porphyrin ring are adsorbed to the surface of some nanoparticles or substrates, such as, [5,10,15, 20-tetrakis(N-methylpyridinium-4-yl)-21H,23H-porphine tetrakis(p-toluenesulfonate)] (TMPyP) is bonded to a Au substrate by the interaction between Au and nitrogen of the pyridine in TMPyP. [6] Also [5,10,15,20-tetra(4-benzoic acid)-21H,23H-porphyrin] (H 2 P-4COOH) is adsorbed on the surface of TiO 2 nanoparticles by the carboxyl groups of H 2 P-4COOH. [3] On the other hand, the metalloporphyrin is linked on the dual functional molecule-modified substrate by the interaction between the metal of metalloporphyrin and the functional group on the substrate.…”

Porphyrins functionalized by quaternary pyridinium units

“…The formation of ordered J-and H-aggregates is induced by association with surfactant monomers below the SDS critical micelle concentration (cmc); the micellized monomer however is formed upon cmc [56].…”

Thermodynamic study of the interaction between 5,10,15,20-tetrakis-(N-methyl-4-pyridyl)porphyrin tetraiodine and sodium dodecyl sulfate

“…Despite the noteworthy role of surfactants in the synthesis porphyrins-containing "tailor-made" materials and on the structure of porphyrins in aqueous solution, the driving force and mechanism behind surfactants-porphyrins interactions are not completely unveiled [20,21]. In this paper we aim to contribute to a better understanding of the mechanism (in both qualitative and quantitative terms) behind the interactions between sodium dodecyl sulfate and the 5,10,15,20-tetrakis-(N-methyl-4-pyridyl)porphyrin tetraiodine (TMePyPI 4 ).…”