Review-Two Different Multiple Photosynthetic Reaction Centers Using Either Zinc Porphyrinic Oligopeptide-Fulleropyrrolidine or Free-Base Porphyrinic Polypeptide-Li+@C 60 Supramolecular Complexes - Archive ouverte HAL Access content directly
Journal Articles ECS Journal of Solid State Science and Technology Year : 2020

Review-Two Different Multiple Photosynthetic Reaction Centers Using Either Zinc Porphyrinic Oligopeptide-Fulleropyrrolidine or Free-Base Porphyrinic Polypeptide-Li+@C 60 Supramolecular Complexes

(1) , , , , , , , , ,
1
Shunichi Fukuzumi
  • Function : Author
Kei Ohkubo
  • Function : Author
Francis d'Souza
  • Function : Author
Régis Rein
  • Function : Author
Kenji Saito
  • Function : Author
Vincent Troiani
  • Function : Author
Hongjin Qiu
  • Function : Author
Suresh Gadde
  • Function : Author
Tetsuya Hasegawa
  • Function : Author

Abstract

An overview of two successful examples of photosynthetic reaction center models combined with light-capturing antenna chromophores is presented. In the first example, supramolecular complexes are formed between flexible zinc porphyrinic oligopeptides and fulleropyrrolidine bearing either a pyridine or imidazole functionalized C 60 via a coordination bond plus π−π interactions. The excited energy migration occurs between porphyrin units followed by charge separation. The charge separation (CS) lifetimes of the supramolecular oligopeptide complexes have been elongated by increasing the generation of the porphyrins, enabling us to attain the longest lifetime (0.84 ms) for the P(ZnP) 8-ImC 60 supramolecular system in PhCN solution at 298 K, ever reported for supramolecular complexes. In the second example, free-base porphyrin polypeptides (P(H 2 P) n ; n = 4 and 8) form supramolecular complexes with Li + @C 60 in PhCN, in which the binding is much stronger than C 60. Efficient energy migration occurs between porphyrins in P(H 2 P) n. The triplet CS states derived from 3 Li+@C 60 had long lifetimes due to spin-forbidden back electron transfer. The triplet CS lifetime becomes longer upon increasing the number of H 2 P due to the charge migration among porphyrins. The present study provides valuable insight into the energy and electron transfer processes leading to long-lived charge separated states in artificial photosynthetic antenna-reaction center models.
Fichier principal
Vignette du fichier
Solladié_2020_ECS_J._Solid_State_Sci._Technol._9_061026.pdf (1.54 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-03021588 , version 1 (24-11-2020)

Identifiers

  • HAL Id : hal-03021588 , version 1

Cite

Nathalie Solladié, Shunichi Fukuzumi, Kei Ohkubo, Francis d'Souza, Régis Rein, et al.. Review-Two Different Multiple Photosynthetic Reaction Centers Using Either Zinc Porphyrinic Oligopeptide-Fulleropyrrolidine or Free-Base Porphyrinic Polypeptide-Li+@C 60 Supramolecular Complexes. ECS Journal of Solid State Science and Technology, 2020. ⟨hal-03021588⟩
9 View
26 Download

Share

Gmail Facebook Twitter LinkedIn More