Bis­(diethyl­enetri­amine-κ3N)­nickel(II) 5-amino-1,3,4-thia­diazo­le-2-sulfonamidate chloride monohydrate

In the X-ray crystal structure of the title complex, [Ni(C₄H₁₃N₃)₂](C₂H₃N₄O₂S₂)Cl·H₂O, the coordination polyhedron is composed of non-centrosymmetric [Ni(diethyl­enetri­amine)₂]²⁺ cations in which the tri­amine ligands coordinate to the metal centre as tridentate ligands in a facial position. The Ni^II ions are linked to six N atoms in an octahedral arrangement, slightly compressed in one extreme. The sulfon­amide behaves as a counter-ion instead of as a ligand. Important information about the deprotonated sulfon­amide group conformation has been obtained.