title: Crystal structure of 3-methyl-5-tri-methyl-silyl-1H-pyrazole.
abstract: The title compound, C7H14N2Si, crystallizes in a tetra-gonal space group and exists as an N-H⋯N hydrogen-bonded tetra-mer, formed around the crystallographic fourfold rotoinversion axis. The mol-ecular identity is clearly the 5-tri-methyl-silyl-3-methyl-1H-pyrazole tautomer and the structure is isomorphous with that of 5-tert-butyl-3-methyl-1H-pyrazole [Foces-Foces & Trofimenko (2001 ▶). Acta Cryst. E57, o32-o34].
authors.affiliation: CB 4160, Department of Chemistry, Illinois State University, Normal, IL 61790, USA.
authors.forename: Gregory M
authors.initials: GM
authors.lastname: Ferrence
authors.affiliation: CB 4160, Department of Chemistry, Illinois State University, Normal, IL 61790, USA.
authors.forename: Joshua L
authors.initials: JL
authors.lastname: Kocher
keywords: crystal structure; hydrogen bonding; pyrazole; tertramer