Bis(propane-1,3-diamine)disaccharinatonickel(II)

Abstract

In the title complex, [Ni(C7H4NO3S)(2)(C3H10N2)(2)] or [Ni(sac)(2)(pen)(2)] (sac = saccharinate or 1,1,3-trioxo-2,3dihydro-1 lambda (6,2)-benzothiazol-2-ide and pen = propane-1,3diamine), the Ni-II ion sits on an inversion center, being coordinated by two N atoms of the sac ligands, which occupy trans positions, and four N atoms of the bidentate pen ligands to define a distorted octahedral geometry. The pen ligands chelate the metal ion, forming a six-membered ring which adopts a half-chair conformation, while the sac ligands adopt the most common coordination mode. The crystal packing is stabilized by N-H ... O hydrogen bonds, which form a onedimensional network along [010]. It is also supported by an N-H ... S hydrogen bond between the amine group of the pen ligand and the sulfonyl group of the sac ligand.