Sensitisation of the near-infrared emission of Nd(III) from the singlet state of porphyrins bearing four 8-hydroxyquinolinylamide chelates

Chemphyschem. 2012 Sep 17;13(13):3163-71. doi: 10.1002/cphc.201200328. Epub 2012 Jul 16.

Abstract

The α(4) atropoisomer of a tetraaryl porphyrin and its Pd(II) complex, both bearing four hydroxyquinolinyl chelating units pre-organised on the same face of the porphyrin backbone, bind a Nd(III) centre thus affording either a mononuclear or a heterobinuclear anionic species, respectively. The near-infrared emission of the lanthanide centred at 1064 nm is observed upon excitation of the Soret band at 425 nm. Sensitisation proceeds mainly from the singlet state of the porphyrin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amides / chemistry
  • Chelating Agents / chemistry*
  • Coordination Complexes / chemistry
  • Hydroxyquinolines / chemistry*
  • Luminescence
  • Models, Molecular
  • Neodymium / chemistry*
  • Palladium / chemistry
  • Porphyrins / chemistry*
  • Spectrophotometry, Infrared

Substances

  • Amides
  • Chelating Agents
  • Coordination Complexes
  • Hydroxyquinolines
  • Porphyrins
  • Neodymium
  • Palladium