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Cascade complexation: a single cyano bridge links a pair of Cu(II) cations

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Bond, Andrew
  • Sofia Derossi
  • Charles J Harding
  • Eric J L McInnes
  • Vickie McKee
  • Christine McKenzie
  • Jane Nelson
  • Joanna Wolowska
A series of structurally characterised mu-cyanodicopper(II) cryptates shows moderately strong antiferromagnetic interaction in the range -2J= 150-200 cm(-1), at the high end of the observed range for such assemblies. The lowest magnetic exchange coupling parameter is displayed where there is slight bending of the M-CN-M assembly, enforced by the constraints of cryptate encapsulation. Thermally accessible triplet EPR spectra are observed with zero-field splittings of the order of 0.13-0.14 cm(-1), confirming collinear ground-state dz2 orbitals for Cu(II), consistent with their trigonal-bipyramidal coordination geometries.
TidsskriftDalton Transactions (Print Edition)
Udgave nummer14
Sider (fra-til)2403-9
Antal sider7
StatusUdgivet - 21 jul. 2005
Eksternt udgivetJa

ID: 46283108