Synthesis, magnetic properties and molecular structure of CuLCl2, where L = 2-aminomethylpyridine (amp) and 2,2′-aminoethylpyridine (aep). One-dimensional antiferromagnetic interactions in Cu(amp)Cl2

  • O'Connor C
  • Eduok E
  • Fronczek F
 et al. 
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Abstract

The synthesis, magnetic properties and molecular structure of two copper(II) chloride complexes of aminoalkylpyridines are discussed. The X-ray crystal structure of Cu(amp)Cl2(amp = 2-aminomethyl-pyridine) shows the compound crystallizes as a one dimensional chain with one chlorine non-bridging and the other chlorine triply bridging. The magnetic data are successfully analyzed with the Bonner-Fisher one dimensional magnetic chain model with the resulting parameters: g = 2.06, J/k = 7.11 K, zJ′/k = -0.69 K. The analogous complex Cu(aep)Cl2(aep = 2-2′-aminoethylpyridine) is reinvestigated using the dimer equation corrected with the molecular field approximation. The resulting parameters are g = 2.05, J/k = -3.83 K, zJ′/k = -0.12 K. Crystal data for CuC6H8N2Cl2: monoclinic, a = 7.932(2) Å, b = 6.257(1) Å, c = 9.435(2) Å, β = 112.97(2)°, V = 431.1(3) Å3, Z = 2, space group P21/m. © 1985.

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Authors

  • Charles J. O'Connor

  • Etim E. Eduok

  • Frank R. Fronczek

  • Olivier Kahn

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