Bis{µ-(2,2′-bipyridine-1κ 2 N , N′ )-(6,6′-dicarbonyl-1κ 2 O , O′ :2κ O′ )bis( N , N -diethylthioureato-2κ S )}(acetato-1κ O )(µ-acetato-1κ O :2-κ O′ )(methanol-2κ O )thoriumnickel

Reactions of 2,2′-bipyridine-6,6′-dicarbonyl-bis( N,N -diethylthiourea), H 2 L bipy , with a mixture of thorium nitrate hydrate and nickel acetate hydrate in methanol with NEt 3 as a supporting base yield brown single crystals of the bimetallic complex [ThNi(L bipy ) 2 (CH 3 COO) 2 (MeOH)]. Two 2,2′-bipyridine-centered bis(aroylthioureato) ligands connect the metal atoms in a way that the thorium atom is coordinated by two O , N , N , O donor atom sets, while the nickel atom establishes two S , O chelate rings in its equatorial coordination plane. The metal atoms are connected by a bridging acetato ligand, and their coordination spheres are completed by one methanol ligand (nickel) and a monodentate acetato ligand (thorium). A distorted octahedral coordination environment is established around the Ni 2+ ion, while the Th 4+ ion is in first approximation a 10-coordinate with a diffusely defined coordination polyhedron.