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Assembling Phthalocyanine Dimers through a Platinum(II) Acetylide Linker

✍ Scribed by Dr. Angel J. Jiménez; Dr. M. Luisa Marcos; Anita Hausmann; Dr. M. Salomé Rodríguez-Morgade; Prof. Dirk M. Guldi; Prof. Tomás Torres

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 452 KB
Volume: 17
Category: Article
ISSN: 0947-6539
DOI: 10.1002/chem.201101791

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✦ Synopsis

Abstract

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.

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