4.5 Article

A Conjugated Organometallic Polymer with Truxene Antennas as Side Arms; A Multiluminescent Material with Evidence for Intrachain MO Couplings

Publisher

SPRINGER
DOI: 10.1007/s10904-012-9718-4

Keywords

Organometallic polymer; Fluorescence; Phosphorescence; Energy transfer; DFT computations

Funding

  1. Natural Sciences and Engineering Research Council of Canada (NSERC)
  2. le Fonds Quebecois de la Recherche sur la Nature et les Technologies (FQRNT)
  3. Centre d'Etudes des Materiaux Optiques et Photoniques de l'Universite de Sherbrooke (CEMOPUS)

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A polymer ([Pt]-ZnP)(n) (ZnP = bis-meso-(hexahexyltruxene)zinc(II) porphyrin; [Pt] = trans-bis(phenylacetylene)bis(tributylphosphine)platinum(II)) was prepared from bis-meso-(hexahexyltruxene)zinc(II) porphyrin and trans-dichlorobis(tributylphosphine)platinum(II) and exhibits fluorescence and phosphorescence from truxene (Tru) and ZnP, and phosphorescence from [Pt] all at once. Evidence for singlet and triplet energy transfer Tru -> ZnP (slow), [Pt] -> ZnP (fast) is provided indicating inter-chromophore interactions. DFT computations indicate strong MO coupling between [Pt] and ZnP.

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