[BDTA](2)[Cu(mnt)(2)]: An almost perfect one-dimensional magnetic material

S S Staniland, W Fujita, Y Umezono, K Awaga, P J Camp, S J Clark, N Robertson

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

[BDTA](2)[Cu(mnt)(2)] (BDTA = benzo-1,3,2-dithiazolyl, mnt = maleonitriledithiolate) was crystallized in the space group P1 with an inversion center on Cu giving a stacked structure with each metal complex anion sandwiched by two cations. Short intermolecular S...S contacts give rise to a one-dimensional chain lateral to the stacking axis. Variable-temperature magnetic susceptibility and EPR measurements indicate that the salt behaves as an ideal one-dimensional Heisenberg antiferromagnetic material from 2 K less than or equal to T less than or equal to 300 K, with a coupling constant of J/k(B) = 16-17 K; the very low temperature magnetic properties are in quantitative agreement with the predictions of quantum field theory. DFT calculations are consistent with the formation of a one-dimensional magnetic chain with interstack interactions mediated by the BDTA counterions.

Original languageEnglish
Pages (from-to)546-551
Number of pages6
JournalInorganic Chemistry
Volume44
Issue number3
DOIs
Publication statusPublished - 7 Feb 2005

Keywords / Materials (for Non-textual outputs)

  • TRANSITION-METAL-COMPLEXES
  • ELECTRON-SPIN-RESONANCE
  • EXCHANGE COUPLING-CONSTANTS
  • HEISENBERG LINEAR-CHAIN
  • CRYSTAL-STRUCTURE
  • LOW-TEMPERATURE
  • WEAK-EXCHANGE
  • GROUND-STATE
  • EPR
  • RADICALS

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