trans-Bis(5,5-diphenyl-hydantoinato-κN)bis-(propane-1,2-diamine-κN,N')nickel(II).

The asymmetric unit of the title complex, [Ni(pht)(2)(pn)(2)] (pht is 5,5-diphenyl-hydantoinate and pn is propane-1,2-diamine) or [Ni(C(15)H(11)N(2)O(2))(2)(C(3)H(10)N(2))(2)], contains one-half [Ni(pht)(2)(pn)(2)] mol-ecule. The Ni(II) atom is situated on a crystallographic center of inversion and shows a distorted octa-hedral coordination geometry. A three-dimensional network structure is assembled by inter- and intra-molecular N-H⋯O=C inter-actions.