Atmospheric Pressure Microwave Assisted Heterogeneous Catalytic Reactions
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ID: 101802
2007
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Abstract
The newly synthesized 5,10,15,20-tetra[3-(3-trifluoromethyl)phenoxy]porphyrin, TTFMPP, has been characterized using mass spectroscopy, 1H-, 13C- and 19F-NMR, MALDI-TOF mass spectrometry, UV-Vis and fluorescence spectrophotometry, andcyclic voltammetry. The NMR confirmed the structure of the compound and the massspectrum was in agreement with the proposed molecular formula. The UV-Vis absorptionspectrum of TTFMPP shows characteristic spectral patterns similar to those of tetraphenylporphryin, with a Soret band at 419 nm and four Q bands at 515, 550, 590, and 648 nm.Protonation of the porphyrin with TFA resulted in the expected red shift of the Soret band.Excitation at 419 nm gave an emission at 650 nm. The quantum yield of the porphyrin wasdetermined to be 0.08. Cyclic voltammetry was used to determine the oxidation andreduction potentials of the new porphyrin. Two quasi-reversible one-electron reductions at–1.00 and –1.32 V and a quasi-reversible oxidation at 1.20 V versus the silver/silverchloride reference electrode with tetrabutylammonium tetrafluoroborate as the supportingelectrolyte in methylene chloride were observed.
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belmore2007atmosphericmolecules
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| Authors | Belmore, Ken;Folmar, LaTasha L;Fondren, L Dalila;Lanier, Katherine;McMillan, Dugald;Simmer, Christine A;Rudeseal, Frank H;Rudeseal, Tiffany;Rudeseal, Gretchen;Bharara, Prakash;Tidwell, Cynthia P; |
| Journal | molecules |
| Year | 2007 |
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