Hetero Face-to-Face Porphyrin Array with Cooperative Effects of Coordination and Host–Guest Complexation

Yusuke Chiba, Maning Liu, Yasuhiro Tachibana, Tetsuaki Fujihara, Yasushi Tsuji, Jun Terao

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)1900-1904
Number of pages5
JournalChemistry - An Asian Journal
Volume12
Issue number15
DOIs
Publication statusPublished - 2017 Aug 4
Externally publishedYes

Subject classification (UKÄ)

  • Materials Chemistry

Free keywords

  • artificial photosynthesis
  • coordination bonding
  • donor-acceptor systems
  • host-guest systems
  • photoinduced electron transfer
  • porphyrin

Fingerprint

Dive into the research topics of 'Hetero Face-to-Face Porphyrin Array with Cooperative Effects of Coordination and Host–Guest Complexation'. Together they form a unique fingerprint.

Cite this