Acta Cryst. (2002). E58, o981-o982  [ doi:10.1107/S1600536802013594 ]

N,N'-Dimethylpiperazine, grown at 270 K and studied at 220 K

A. Parkin and S. Parsons

Abstract: The crystal structure of the title compound, MeNC₄H₈NMe or C₆H₁₄N₂, which is liquid under ambient conditions, has been determined at low temperature. The molecule occupies a special position on a crystallographic inversion centre. The piperazine ring has an almost ideal chair conformation, with the absolute values of the endocyclic torsion angles in the range 57.4-58.6°. No close C-HN contacts are observed in the crystal structure.

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