Electron Transfer Function of Porphyrin Derivatives and Their Application. (Part 4). A Novel Photoinduced Hydrogen Evolution System Using Bifunctional Polymer-Supported Tin Porphyrins.

Abstract

Abstract:Meso-tetra (p-carboxyphenyl)porphine was prepared and the tin-complex was immobilized into poly (styrene) beads. The obtained polymer-supported complex showed an electron transfer ability similar to that of non-supported native complex. As applying this electron transfer function of both complexes for a photoinduced hydrogen evolution system, hydrogen was generated in the presence of electron donor and Pt catalyst. This result indicated that both polymer-supported and non-supported complexes worked as not only an electron carrier but also a photosensitizer. However, the immobilization of the complex onto the polymer lowered the electron transfer ability.

Noble Metal-Free Light-Driven Hydrogen Evolution Catalysis in Polyampholytic Hydrogel Networks

“…Recent studies demonstrate that PMI derivatives with these modifications can sensitize [Mo 3 S 13 ] 2− clusters for stable HER under visible light, facilitated by poly(dehydroalanine)-graft-poly(ethylene glycol) (PDha-g-PEG) graft copolymers as solubilizing templates. 24 Using soft matter matrices like polymers, 25,26 membranes, 27 and micelles 28 for light-driven catalysis is appealing. These matrices not only address the limited solubility of many PSs in aqueous environments but also allow for a defined spatial arrangement of the PS and catalyst, often boosting catalytic activity.…”

“…Using soft matter matrices like polymers, , membranes, and micelles for light-driven catalysis is appealing. These matrices not only address the limited solubility of many PSs in aqueous environments but also allow for a defined spatial arrangement of the PS and catalyst, often boosting catalytic activity .…”

Sn(iv) Schiff base complexes: triplet photosensitizers for photoredox reactions

“…1 There are a number of articles addressing the photoreactivity of Sn complexes in the literature. These reports mainly focus on the photochemistry of Sn(II) and Sn(IV) aquo, halide, hydroxo, and cluster complexes, [2][3][4][5][6][7][8] Sn porphyrins, [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] phthalocyanines, [29][30][31][32][33] and corroles, [34][35][36][37] and transition metal complexes utilizing organotin compounds as a ligand. [38][39][40][41][42][43][44][45][46][47] The simple Sn(IV) complexes (halides, hydroxo, etc.)…”