Assembling a Phthalocyanine and Perylenediimide Donor–Acceptor Hybrid through a Platinum(II) Diacetylide Linker. Issue 43 (13th September 2013)

• Record Type: Journal Article
• Authors: Jiménez, Ángel J.; Sekita, Michael; Caballero, Esmeralda; Marcos, M. Luisa; Rodríguez‐Morgade, M. Salomé; Guldi, Dirk M.; Torres, Tomás
• Is Part Of: Chemistry. Volume 19:Issue 43(2013)
• Page Start: 14506
• Page End: 14514
• Publication Date: 2013-09-13
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201301630
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>In a novel electron‐donor–acceptor conjugate, phthalocyanine (Pc) and perylenediimide (PDI) are connected through a <italic>trans</italic>‐platinum(II) diacetylide linker to yield Pc‐Pt‐PDI <bold>1</bold>. In the ground state, the presence of Pt^II disrupts the electronic communication between the two electroactive components, as revealed by UV/Vis spectroscopy and electrochemical studies. The photophysical behavior of <bold>1</bold> is compared with that of the corresponding Pc‐PDI electron‐donor–acceptor conjugate <bold>2</bold> in terms of charge separation and charge recombination. The insertion of Pt^II between Pc and PDI impacts the results in a longer‐lived Pc<bold>^.</bold>⁺/PDI<bold>^.</bold>⁻ radical ion‐pair state. In addition, the intermediately formed Pc triplet excited state is formed with higher quantum yields in <bold>1</bold> than in <bold>2</bold>.</p> </abstract>