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A tetrahedral copper(I) compound of pyrazole-substituted ethylene diamine. The crystal structure of [(N,N,N′,N′-tetrakis(pyrazol-1′-ylmethyl)-(1,2-diaminoethane)copper(I)](tetrafluoroborate) (acetonitrile)

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Summary

Reaction of the ligandN,N,N′,N′-tetrakis(pyrazol-l′-yhnethyl)-1,2-diaminoethane (edtp) with Cu(MeCN)(BF4) produces the white crystalline solid [Cu(edtp)](BF4)(MeCN). The single-crystal x-ray diffraction showed chains of copper(I) ions linked to one another by edtp molecules. The copper ions are coordinated by four pyrazole nitrogens in an almost tetrahedral arrangement. The acetonitrile molecule and the tetrafluoroborate anion are not bound to the copper(I) ion.

Crystal data: Orthorhombic space group Ima2,a=17.872(7),b=11.305(2),c=12.931(4) Å, Z=4, with R=0.038 (Rw = 0.46) for 1060 reflections with I > 2σ(I).

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Correspondence to Willem L. Driessen.

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Driessen, W.L., Hulsbergen, F.B., Reedijk, J. et al. A tetrahedral copper(I) compound of pyrazole-substituted ethylene diamine. The crystal structure of [(N,N,N′,N′-tetrakis(pyrazol-1′-ylmethyl)-(1,2-diaminoethane)copper(I)](tetrafluoroborate) (acetonitrile). Transition Met Chem 10, 390–392 (1985). https://doi.org/10.1007/BF00618851

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Keywords

  • Copper
  • Acetonitrile
  • Diamine
  • Ethylene Diamine
  • Pyrazole