title: Assembling a phthalocyanine and perylenediimide donor-acceptor hybrid through a platinum(II) diacetylide linker.
abstract: In a novel electron-donor-acceptor conjugate, phthalocyanine (Pc) and perylenediimide (PDI) are connected through a trans-platinum(II) diacetylide linker to yield Pc-Pt-PDI 1. 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 1 is compared with that of the corresponding Pc-PDI electron-donor-acceptor conjugate 2 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(.) (+) /PDI(.) (-) radical ion-pair state. In addition, the intermediately formed Pc triplet excited state is formed with higher quantum yields in 1 than in 2.
authors.affiliation: Departamento de Química Orgánica (C-1), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain), Fax: (+34) 91-397-3966.
authors.forename: Ángel J
authors.initials: ÁJ
authors.lastname: Jiménez
authors.forename: Michael
authors.initials: M
authors.lastname: Sekita
authors.forename: Esmeralda
authors.initials: E
authors.lastname: Caballero
authors.forename: M Luisa
authors.initials: ML
authors.lastname: Marcos
authors.forename: M Salomé
authors.initials: MS
authors.lastname: Rodríguez-Morgade
authors.forename: Dirk M
authors.initials: DM
authors.lastname: Guldi
authors.forename: Tomás
authors.initials: T
authors.lastname: Torres
mesh_terms: D004583:Electrons; D007094:Imides / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D054833:Isoindoles; D007536:Isomerism; D008665:Metalloporphyrins / Q000138:chemical synthesis* / Q000737:chemistry; D009944:Organoplatinum Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D010569:Perylene / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D010984:Platinum / Q000737:chemistry*
chemical_list: D007094:Imides; D007211:Indoles; D007477:Ions; D054833:Isoindoles; D008665:Metalloporphyrins; D009944:Organoplatinum Compounds; C521332:perylenediimide; D010984:Platinum; D010569:Perylene; C013647:phthalocyanine
keywords: electrochemistry; perylenediimides; photophysics; phthalocyanines; platinum acetylide