Coordination polymers of alkali metal cyclosiloxazanides with one- and two-dimensional structures.

The reaction of O(SiMeCl) with ammonia yielded the cyclic siloxazane O(SiMe)NH (1), which was used as a precursor for the synthesis of siloxazanide-type alkali metal salts. The metalation of 1 with the strong bases BzA (A = Na, K, Rb, Cs and Bz = benzyl) results in different dimensional structures depending on the alkali metal ion used. These results give new insights into framework design with inorganic building blocks and the coordination ability of siloxanes.