Acta Cryst. (2009). E65, m171  [ doi:10.1107/S1600536808043237 ]

(18-Crown-6-⁶O)(pyrazolato-²N,N')-potassium(I)

K. Kunz, H.-W. Lerner and M. Bolte

Abstract: The asymmetric unit of the title compound, [K(C₃H₃N₂)(C₁₂H₂₄O₆)], is composed of a potassium cation bonded to the six O atoms of a crown ether molecule and the two N atoms of a pyrazolate anion. The KO distances range from 2.8416 (8) to 3.0025 (8) Å, and the two KN distances are 2.7441 (11) and 2.7654 (11) Å. The K cation is displaced by 0.8437 (4) Å from the best plane through the six O atoms. The latter plane is almost perpendicular to the plane of the pyrazolate ring [dihedral angle 83.93 (3)°].

Online 10 January 2009

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