Phosphorus(V)corrole- Porphyrin Based Hetero Trimers: Synthesis, Spectroscopy and Photochemistry (original) (raw)
Journal of Porphyrins and Phthalocyanines, 2009
We have synthesized a series of tetrakis(arylvinylene)phthalocyanines from the corresponding phthalonitriles. According to 1 H and 19 F NMR data, the cis-or trans-conformations of the starting materials retain du ring condensation, thus phthalocyanines formed are in all-cis or all-trans form. The cis-trans photoisomerization occurs easily for phthalonitriles, while phthalocyanines retain their conformations under UV beam.
Journal of The American Chemical Society, 1990
The synthesis and properties of a series of fixed-distance chlorophyll-porphyrin molecules are described. These molecules consist of a methyl pyrochlorophyllide a moiety which is directly bonded at its 2-position to the 5-position of a 2,8,12,18-tetraethyl-3,7,13,17-tetramethyl-15-(p-tolyl)porphyrin. Steric hindrance between adjacent substituents rigidly positions the Ï systems of both macrocycles perpendicular to one another. The macrocycles were selectively metalated with zinc to
Click made porphyrin–corrole dyad: a system for photo-induced charge separation
Dalton Trans., 2015
The preparation of the first porphyrin-corrole dyad through click chemistry is described. The absorption, the emission and the electrochemical properties were investigated and suggested an efficient excited state interaction between the porphyrin and the corrole unit. Theoretical calculations were performed and proved that the dyad can potentially act as a molecular system for solar energy conversion schemes.
Inorganic Chemistry, 1998
Synthesis of a new symmetrical 1,4,8,11,15,18,22,25-octahexyloxy-2,3,9,10,16,17,23,24-octa-(3,5-dichlorophenyl)phthalocyaninato zinc(II), ZnPc, has been described and characterized by 1 H NMR, 13 C NMR, MS, UVeVis, and IR spectrometry. The newly prepared ZnPc is soluble in organic solvents and is not aggregated in solution. The photophysical properties were studied by steady-state absorption and emission, cyclic voltammetry, and nanosecond transient absorption techniques. The prepared ZnPc absorbs and emits at longer wavelengths compared to that of reported phthalocyanine derivatives. The electron-donating properties of the ZnPc have been examined by mixing it with the electron-accepting dicyanoperylene-3,4,9,10-bis(dicarboximide), PDICN 2 . The recorded nanosecond transient spectra in the visible/near-IR region showed clearly the electron-transfer from the triplet-excited state of the ZnPc to PDICN 2 with a rate of 3.40 Â 10 8 M À1 s À1 . Light absorption in a wide section of the solar spectrum, favorable redox properties, and the electron-transfer properties suggest usefulness of the ZnPc in lightenergy harvesting and developing optoelectronic devices.