A deliberate approach for the syntheses of heterometallic supramolecules containing dimolybdenum Mo24+ species coordinated to other metal units

Abstract

Two compounds with quadruply bonded Mo2(4+) species having isonicotinate ligands bound through the carboxylate group have been designed to act as anglers by luring metal-containing Lewis acids to bind to the N-pyridyl group. The corner pieces are Mo2(DAniF)3(O2CC5H4N) and cis-Mo2(DAniF)2(O2CC5H4N)2, DAniF=N,N'-di(p-anisyl)formamidinate. The heterometallic molecular rods -Ni(acac)2-and-Rh2(O2CCH3)4- were made by reaction of with Ni(acac)2 and the metal-metal bonded species Rh2(O2CCH3)4, respectively. In these compounds either a mononuclear or a dinuclear species are sandwiched between two molecules of . The cisoid compound has been employed for the synthesis of a molecular rhombus, [-Zn(Cl2)]2. The successful syntheses and isolation of show that the use of corner pieces with angler groups is an excellent approach for making heterometallic supramolecular compounds having a combination of metal-metal bonded units and other metal species.