Strong ferromagnetic metal-ligand exchange in a nickel bis(3,5-dipyridylverdazyl) complex

Chem Commun (Camb). 2010 Sep 21;46(35):6590-2. doi: 10.1039/c0cc02233k. Epub 2010 Aug 10.

Abstract

A new 1,5-dipyridyl verdazyl, synthesized from the corresponding dipyridyl hydrazone, coordinates nickel(ii) to form a structurally characterized, pseudooctahedral complex analogous to Ni(terpy)(2)(2+). The unusually short Ni-verdazyl distance results in strong ferromagnetic exchange (J(Ni-rad) = +300, J(rad-rad) = +160 cm(-1)) between all three paramagnetic species along with a metal-ligand charge transfer band in the electronic spectrum.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Coordination Complexes / chemical synthesis
  • Coordination Complexes / chemistry*
  • Crystallography, X-Ray
  • Electron Spin Resonance Spectroscopy
  • Ligands
  • Magnetics*
  • Metals / chemistry*
  • Molecular Conformation
  • Nickel / chemistry*
  • Organometallic Compounds / chemical synthesis
  • Organometallic Compounds / chemistry*

Substances

  • Coordination Complexes
  • Ligands
  • Metals
  • Organometallic Compounds
  • Nickel