title: Crystal structure of 1,2-bis-[(1H-imidazol-2-yl)methylidene]hydrazine and its one-dimensional hydrogen-bonding network.
abstract: In the title compound, C8H8N6, two imidazolyl groups are separated by a zigzag -CH=N-N=CH- linkage. An inversion center is located at the mid-point of the N-N single bond and the complete molecule is generated by symmetry. In the crystal, each mol-ecule forms four N-H⋯N hydrogen bonds with two neighbouring mol-ecules to constitute a one-dimensional ladder-like structure propagating along the a-axis direction.
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei, Taiwan.
authors.forename: Chia-Hwa
authors.initials: CH
authors.lastname: Lee
authors.affiliation: Instrumentation Center, National Taiwan University, Taipei, Taiwan.
authors.forename: Gene-Hsiang
authors.initials: GH
authors.lastname: Lee
keywords: crystal structure; hydrogen bonding; imidazole derivative; supra­molecular architecture