Assembling a Phthalocyanine and Perylenediimide Donor–Acceptor Hybrid through a Platinum(II) Diacetylide Linker

Authors

  • Dr. Ángel J. Jiménez,

    1. Departamento de Química Orgánica (C-1), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain), Fax: (+34) 91-397-3966
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  • Michael Sekita,

    1. Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nuremberg, Egerlandstrasse 3, 91058 Erlangen (Germany), Fax: (+49) 9131-852-8307
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  • Dr. Esmeralda Caballero,

    1. Departamento de Química Orgánica (C-1), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain), Fax: (+34) 91-397-3966
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  • Dr. M. Luisa Marcos,

    1. Departamento de Química, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain)
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  • Dr. M. Salomé Rodríguez-Morgade,

    1. Departamento de Química Orgánica (C-1), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain), Fax: (+34) 91-397-3966
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  • Prof. Dr. Dirk M. Guldi,

    Corresponding author
    1. Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nuremberg, Egerlandstrasse 3, 91058 Erlangen (Germany), Fax: (+49) 9131-852-8307
    • Dirk M. Guldi, Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nuremberg, Egerlandstrasse 3, 91058 Erlangen (Germany), Fax: (+49) 9131-852-8307

      Tomás Torres, Departamento de Química Orgánica (C-1), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain), Fax: (+34) 91-397-3966

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  • Prof. Tomás Torres

    Corresponding author
    1. Departamento de Química Orgánica (C-1), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain), Fax: (+34) 91-397-3966
    2. IMDEA-Nanociencia, C/Faraday 9, Cantoblanco, 28049 Madrid (Spain)
    • Dirk M. Guldi, Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nuremberg, Egerlandstrasse 3, 91058 Erlangen (Germany), Fax: (+49) 9131-852-8307

      Tomás Torres, Departamento de Química Orgánica (C-1), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain), Fax: (+34) 91-397-3966

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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 PtII 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 PtII 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.

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