From sandwich and triple-decker to organometallic polymers

Several types of organometallic polymers with different backbones are known. Our approach for the construction of metal-containing polymers uses the ability of Lewis-acidic boron heterocycles to interact antifacially with metals. The boron heterocycle 2,3-dihydro-1,3-diborole not only allows the formation of sandwich and triple-decker complexes but also the stacking of metal complex fragments to oligodecker and polydecker compounds. This account reviews sandwich and triple-decker complexes as potential building blocks for polymers. The bibliography includes 46 references.