Photocatalytic oxidation of hydrocarbons by (5,10,15,20-tetraphenylporphyrinato)manganese(II) perchlorate and periodate

Oxidation of Hydrocarbons with Tetrabutylammonium Oxone Catalyzed by β-Tribrominated meso-Tetraphenylporphyrinatomanganese(III) Acetate in the Presence of N-Bases

“…[1,[9][10][11][12][13][14][15][16][17][18][19][20] In this work, co- It is observed that imidazole with ring size smaller than the other nitrogen donors is the best one. The introduction of π-electron-withdrawing substituents at different positions of pyridine dramatically decreases the activity of pyridine as a nitrogen donor.…”

“…The biomimetic oxidation of hydrocarbons and nitrogen-and sulfur-containing compounds with different oxygen donors such as PhIO, NaOCl, H 2 O 2 , periodate, amine N-oxides and n Bu 4 NHSO 5 (TBAO) have been extensively studied. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] Iron and manganese porphyrins bearing halogen substituents on the periphery of the porphyrin ring have been shown to be particularly efficient for epoxidation and hydroxylation reactions. [21][22][23] Such porphyrins are also more resistant to degradation via free-radical attack or direct oxidation of porphyrin ring than those containing electron-donating substituents.…”

Photoacoustic Based Surface Plasmon Resonance Spectroscopy: An Investigation

“…Such features are usually attributed to hyper spectra due to metal to ligand charge transfer. 33,41 These arise from the considerable mixing of the metal dπ orbitals with the LUMO of the Porphyrin, which renders Fe porphyrins of considerable interest for photochemical studies. The broadening, almost nonzero extinction coefficient throughout the visible region and spectral shifts of the bands are indicative of formation of aggregates during the preparation of films on glass substrate.…”

Photoacoustic based surface plasmon resonance spectroscopy: an investigation

“…Such features are usually attributed to hyper spectra due to metal to ligand charge transfer. 33,41 These arise from the considerable mixing of the metal dπ orbitals with the LUMO of the Porphyrin, which renders Fe porphyrins of considerable interest for photochemical studies. The broadening, almost nonzero extinction coefficient throughout the visible region and spectral shifts of the Photoacoustic Based Surface Plasmon Resonance Spectroscopy: An Investigation 375 bands are indicative of formation of aggregates during the preparation of films on glass substrate.…”