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Assembling Phthalocyanine Dimers through a Platinum(II) Acetylide Linker
Author(s) -
Jiménez Angel J.,
Marcos M. Luisa,
Hausmann Anita,
RodríguezMorgade M. Salomé,
Guldi Dirk M.,
Torres Tomás
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201101791
Subject(s) - acetylide , platinum , phthalocyanine , linker , chemistry , photochemistry , organic chemistry , computer science , catalysis , operating system
Phthalocyanine (Pc) dimers connected through trans‐ platinum(II) diacetylide linkers have been prepared by reaction of the corresponding ethynylphthalocyanines with trans ‐bis(triethylphosphine)platinum(II) chloride. Special emphasis was placed on the analysis of the ground‐ and excited‐state features of these compounds in relation to butadiyne‐bridged Pc dimers and the corresponding monomers. Both Zn II ‐containing Pc dimers exhibit long‐lived triplet excited states. The insertion of σ‐bonded trans ‐platinum(II) diacetylide spacers decoupled the two Pc groups and led to an appreciable acceleration (by a factor of up to 10) of the radiative and nonradiative decay rate of the singlet and triplet excited states.