BR2BodPR2: highly fluorescent alternatives to PPh3 and PhPCy2

Dalton Trans. 2014 Sep 28;43(36):13485-99. doi: 10.1039/c4dt00704b.

Abstract

The syntheses of highly fluorescent analogues of PPh3 and PhPCy2 based on the Bodipy chromophore are described. The ligands have been incorporated into two- to four-coordinate group 11 metal complexes. The synthesis, characterisation and photophysical properties of the novel ligands and their metal complexes are reported; many of these compounds have also been characterised by single-crystal X-ray diffraction. Incorporation of the phosphino group and complexation to the group 11 metal centre has little effect on the absorption and emission profiles; high molar extinction coefficients and fluorescence quantum yields were still obtained. In particular, incorporation of the dicyclohexylphosphino substituent significantly increases the quantum yields relative to the parent dyes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Boron Compounds / chemistry
  • Coordination Complexes / chemical synthesis
  • Coordination Complexes / chemistry*
  • Copper / chemistry
  • Crystallography, X-Ray
  • Fluorescent Dyes / chemistry
  • Ligands
  • Magnetic Resonance Spectroscopy
  • Molecular Conformation
  • Phosphines / chemistry
  • Quantum Theory
  • Silver / chemistry
  • Temperature

Substances

  • 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene
  • Boron Compounds
  • Coordination Complexes
  • Fluorescent Dyes
  • Ligands
  • Phosphines
  • Silver
  • Copper