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- W1977117703 abstract "Abstract The synthesis and photophysical properties of four covalently linked unsymmetrical porphyrin dyads containing two different porphyrin cores such as N 4 and N 3 S are reported. The covalently linked dyads were prepared by the coupling of appropriate porphyrin having ethynylphenyl functional group at meso -position with porphyrin having iodophenyl or bromo functional group at meso -position under mild palladium coupling conditions. The photophysical study indicated an intramolecular singlet–singlet energy transfer from N 4 /ZnN 4 porphyrin sub-unit to N 3 S porphyrin sub-unit in all four dyads with an efficiency of energy transfer process was typically ⩾97%. To probe the role of linker in through bond electronic communication between the two porphyrin sub-units in dyads, the linker was varied from diphenylethyne to phenylethyne and the study revealed that the energy transfer rates and efficiencies were much higher for phenylethyne-bridged porphyrin dyads compared with diphenylethyne-bridged porphyrin dyads." @default.
- W1977117703 created "2016-06-24" @default.
- W1977117703 creator A5002660612 @default.
- W1977117703 creator A5029263481 @default.
- W1977117703 date "2007-04-01" @default.
- W1977117703 modified "2023-10-17" @default.
- W1977117703 title "Synthesis and photophysical studies of covalently linked porphyrin-21-thiaporphyrin dyads" @default.
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- W1977117703 doi "https://doi.org/10.1016/j.ica.2006.09.016" @default.
- W1977117703 hasPublicationYear "2007" @default.
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