Acta Cryst. (2012). E68, o3284-o3285
[ doi:10.1107/S1600536812044984 ]

Tetrabutylammonium 2-[2,5-dimethyl-3-(4-nitrophenyl)-2,3-dihydro-1,2,4-oxadiazolium-4-yl]nonahydro-closo-decaborate

A. L. Mindich, A. V. Pavlishchuk, N. A. Bokach, G. L. Starova and K. Y. Zhizhin

Abstract: The title ionic compound, C₁₆H₃₆N⁺·C₁₀H₂₀B₁₀N₃O₃^-, consists of a tetrabutylammonium cation and a closo-decaborate cluster anion, which is bound to the substituted 2,3-dihydro-1,2,4-oxadiazole ring through a B-N bond [1.540 (2) Å]. The distances between connected B atoms in the decaborate cluster range from 1.689 (2) to 1.844 (2) Å. The 2,3-dihydro-1,2,4-oxadiazole ring adopts an envelope conformation with the N atom as the flap atom.

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