A Triphenylamine/Bis(terpyridine)Ir III  Dyad for the Assembly of Charge‐Separation Constructs with Improved Performances | Zendy

Flamigni Lucia | Zendy; Ventura Barbara | Zendy; Baranoff Etienne | Zendy; Collin JeanPaul | Zendy; Sauvage JeanPierre | Zendy

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A Triphenylamine/Bis(terpyridine)Ir III Dyad for the Assembly of Charge‐Separation Constructs with Improved Performances

Author(s) -

Flamigni Lucia,

Ventura Barbara,

Baranoff Etienne,

Collin JeanPaul,

Sauvage JeanPierre

Publication year - 2007

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.200700669

Subject(s) - chemistry , triphenylamine , dyad , terpyridine , benzamide , acceptor , triad (sociology) , charge (physics) , photochemistry , stereochemistry , organic chemistry , psychology , social psychology , physics , quantum mechanics , psychoanalysis , metal , condensed matter physics

A new dyad DII‐Ir consisting of a triphenylamine donor and a bis(terpyridine)Ir III acceptor separated by a bridge composed of two benzamide groups has been synthesized. The electrochemical and photophysical properties of the dyad have been compared to those of a corresponding dyad D‐Ir characterized by a bridge connecting the donor and the acceptor consisting of a single benzamide unit. We show that, whereas the charge‐separation steps are still very efficient in the long dyad (≥99 %), charge recombination is slowed by a factor of three with respect to the short dyad. This encourages the use of this dyad in the assembly of a more elaborate array DII‐Ir‐A, expected to overcome the disappointingly low charge‐separation yield of a previously studied D‐Ir‐A short triad. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)

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