Tailor-Made Luminescent Polymers through Unusual Metallophilic Interaction Arrays Au⋯Au⋯Ag⋯Ag

  1. Gil-Moles, M. 1
  2. Gimeno, M.C. 2
  3. López-De-Luzuriaga, J.M. 1
  4. Monge, M. 1
  5. Olmos, M.E. 1
  6. Pascual, D. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    GRID grid.119021.a

  2. 2 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    GRID grid.11205.37

Journal:
Inorganic Chemistry

ISSN: 0020-1669

Year of publication: 2017

Volume: 56

Issue: 15

Pages: 9281-9290

Type: Article

Export: RIS
DOI: 10.1021/acs.inorgchem.7b01342 SCOPUS: 2-s2.0-85027025068 WoS: 000407405500076
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Summary

A novel and efficient strategy for the synthesis of luminescent polymers bearing metallophilic interactions with unprecedented charge sequences has been designed. For this end suitable basic gold units such as [AuR2]-, bearing perhalophenyl derivatives, and dinuclear acid silver terpyridine species, [Ag2(terpy)2](CF3SO3)2, have been chosen. Their combination originates the polymeric derivatives [{AuR2}2Ag2(terpy)2]n (R = C6F5, C6Cl2F3) or [{Au(C6Cl5)2}Ag(terpy)]n. The change of the perhalophenyl group in the gold complex modulates the strength in the metallophilic contacts and, consequently, the polymer arrays and luminescent properties. The X-ray diffraction studies of these derivatives revealed that there are polymers with unusual + + - - + + - - charge sequences for the R = C6F5 and C6Cl2F3 species, whereas the more classical + - + - disposition was found for the bulkiest C6Cl5 derivative. Their luminescent properties also vary depending on the formation of these polymer arrays, and time-dependent density functional theory calculations were performed to determine the origin of the luminescence. © 2017 American Chemical Society.