Luminescent monomeric and polymeric cuprous halide complexes with 1,2-bis(3,5-dimethylpyrazol-1-ylmethyl)-benzene as ligand

Fengshou Wu, Hongbo Tong, Kai Wang*, Jie Zhang, Zebin Xu, Xunjin ZHU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Abstract Reaction of cuprous bromide with equimolar amounts of 1,2-bis(3,5-dimethylpyrazol-1-ylmethyl)-benzene (dpb) affords a mononuclear three-coordinated complex [CuBr(dpb)] (F2) with dpb acting as a chelating ligand. In contrast, using cuprous iodide instead under the same conditions gives the polymeric compound [Cu2I2(dpb)]n (F1) which contains double-bridging iodine atoms. The complexes were characterized by element analysis and 1H NMR spectroscopy, and the crystal structures were determined by single-crystal X-ray diffraction methods. The Cu(I) complexes are luminescent in the solid state at ambient temperature. Intense orange emission for complex F1 is observed, with maxima at 593 nm, probably ascribed to a combination of a halide-to-metal charge transfer and copper-centered d → s, p transitions. F2 exhibits a blue photoluminescence, with emission maximum at 515 nm, assigned to metal-to-ligand charge-transfer excited states, probably mixed with some halide-to-ligand characters.

Original languageEnglish
Article number6019
Pages (from-to)113-116
Number of pages4
JournalInorganic Chemistry Communication
Volume58
DOIs
Publication statusPublished - 24 Jun 2015

Scopus Subject Areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

User-Defined Keywords

  • Coordination polymers
  • Crystal structures
  • Cuprous halides
  • Luminescence

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