Abstract
We successfully synthesized a hetero face-to-face porphyrin array composed of ZnTPP and RuTPP(DABCO)2 (TPP: 5, 10, 15, 20-tetraphenylporphyrin, DABCO: 1,4-diazabi-cyclo[2.2.2]octane) in 2:1 molar ratio. A cyclic Zn porphyrin dimer (ZnCP) was also used as the host molecule for the Ru porphyrin. In the latter, the Ru-DABCO bonding in RuTPP(DABCO)2 was stabilized by the host-guest complexation. Reaction progress kinetic analysis of the ligand substitution reaction of RuTPP(DABCO)2 and that in ZnCP revealed the stabilization mechanism of the Ru-DABCO bonding. Photoinduced electron transfer (PET) from the Zn porphyrin to the Ru porphyrin was observed in the porphyrin array. The host-guest stabilization of unstable complex for construction of a donor—acceptor–donor structure is expected to be a new method for an artificial photosynthesis.
Original language | English |
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Pages (from-to) | 1900-1904 |
Number of pages | 5 |
Journal | Chemistry - An Asian Journal |
Volume | 12 |
Issue number | 15 |
DOIs | |
Publication status | Published - 2017 Aug 4 |
Externally published | Yes |
Subject classification (UKÄ)
- Materials Chemistry
Free keywords
- artificial photosynthesis
- coordination bonding
- donor-acceptor systems
- host-guest systems
- photoinduced electron transfer
- porphyrin