In the solid state, the title compound, ,8-diylbis(2-ethano1)-N-3,N-6,
N-10,N-13]nickel(II) bis(maleonitriledithiolato-S,S')nickelate(II), [N
i(C12H30N6O2)][Ni(C4N2S2)(2)], forms two-dimensional layers parallel t
o the (201) plane and its crystal structure is stabilized by N-H...O,
N-H...S, C-H...N and O-H...S hydrogen bonds. The short S...Ni anion-to
-cation contact of 3.5516(8) Angstrom is interpreted as a weak interac
tion between these atoms.