N,N-dimethylcarbamato complexes of zinc

By reaction of Zn4O(O2CNMe2)6 (1) with [NH2Me2][O2CNMe2] in toluene as medium, the homoleptic zinc compound [Zn(O2CNMe2)2] (2) was obtained, which reverted back to the tetranuclear μ-oxo derivative by controlled hydrolysis. The reaction of ZnO in MeCN with an excess of [NH2Me2][O2CNMe2] in concentrated solution produced high yields of [Zn(O2CNMe2)2] (2) or [NH2Me2][Zn2(O2CNMe2)5] · xMeCN, 3 · xMeCN, x = 1 or 2, depending on the experimental conditions.