title: (Z,Z)-N''-[Amino-(pyrazin-2-yl)methyl-ene]pyrazine-2-carbohydrazonamide.
abstract: The title compound, C(10)H(10)N(8), resides on a crystallographic symmetry center and features an essentially planar mol-ecule [r.m.s. deviation = 0.278 (1) Å]. In the C=N-N=C fragment, the C=N distance is 1.3017 (18) Å and the N-N distance is 1.403 (2) Å. In the crystal, adjacent mol-ecules are linked by N-H⋯N hydrogen bonds into a three-dimensional network.
authors.affiliation: School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China.
authors.forename: Ya-Wen
authors.initials: YW
authors.lastname: Zhang
authors.forename: Jian-Quan
authors.initials: JQ
authors.lastname: Wang
authors.forename: Lin
authors.initials: L
authors.lastname: Cheng