Bis(tetra­ethyl­ammonium) dodeca­cyanododecaborate(2−)

Abstract

The title compound, 2C₈H₂₀N⁺·B₁₂C₁₂N₁₂²⁻, was prepared using microwave-promoted cross-coupling and crystallized from an aceto­nitrile-water solution. The structure was determined at 101 K, indicating the title compound crystallizes in the trigonal space group P3 and features a B₁₂(CN)₁₂²⁻ subunit with nearly icosa­hedral symmetry. The anionic subunit interacts with the Et₄N⁺ cation in the structure by multiple weak Csp³–H⋯N hydrogen bonds between CN groups on the anion and methyl and methyl­ene H atoms on the cation.

The title compound, 2C₈H₂₀N⁺·B₁₂C₁₂N₁₂²⁻, was prepared using microwave-promoted cross-coupling and crystallized from an aceto­nitrile-water solution. The structure was determined at 101 K, indicating the title compound crystallizes in the trigonal space group P3 and features a B₁₂(CN)₁₂²⁻ subunit with nearly icosa­hedral symmetry. The anionic subunit interacts with the Et₄N⁺ cation in the structure by multiple weak Csp³–H⋯N hydrogen bonds between CN groups on the anion and methyl and methyl­ene H atoms on the cation.