Acta Crystallographica Section E: Crystallographic Communications (Nov 2020)

Crystal structure of (N^C) cyclometalated AuIII diazide at 100 K

  • Volodymyr Levchenko,
  • Sigurd Øien-Ødegaard,
  • David Wragg,
  • Mats Tilset

DOI
https://doi.org/10.1107/S2056989020012955
Journal volume & issue
Vol. 76, no. 11
pp. 1725 – 1727

Abstract

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The title compound, an (N^C)-cyclometalated gold(III) diazide, namely, diazido[5-ethoxycarbonyl-2-(5-ethoxycarbonylpyridin-2-yl)phenyl-κ2C1,N]gold(III), [Au(C17H16NO4)(N3)2] or Au(ppyEt)(N3)2, was synthesized by reacting Au(ppyEt)Cl2 with NaN3 in water for 24 h. The complex has been structurally characterized and features a gold center with a square-planar environment. The Au—N(azide) bond lengths are significantly different depending on the influence of the atom trans to the azide group [Au—N(trans to C) of 2.067 (2) Å versus Au—N(trans to N) of 2.042 (2) Å]. The azide groups are twisted in-and-out of plane by 56.2 (2)°.

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