Photocatalytic hydrogen production from a noble metal free system based on a water soluble porphyrin derivative and a cobaloxime catalyst

摘要

A combination of noble-metal free components, a water solubleudporphyrin photosensitizer zinc meso-tetrakis(1-methylpyridinium-ud4-yl)porphyrin chloride [ZnTMPyP4+]Cl4 (1) with cobaloxime complexud[CoIII(dmgH)2(py)Cl] (2) as a catalyst, creates an efficient system forudphotochemical hydrogen production acting under visible light with 280udTONs. This is the first example of a water soluble porphyrin acting as audphotosensitizer for cobaloxime catalysed H2 production.