3577.     ---------------.  [VON STACKELBERG, M.]  [Structural Principle of Carbides, Silicides, Nitrides, and Phosphides of Electropositive Metals.]  Ztschr. physik. Chem., vol. B 27, 1934, pp. 53-57; Chem. Abs., vol. 29, 1935, p. 657.

        Compounds of Be, Al, Mg, Ca, Si, Ti, and Zr with C, Si, N, and P are considered as forming ionic-crystal lattices.  The anions assemble in a lattice of the closest spherical packing. The cations are embedded in the tetrahedral or octahedral gaps in the lattice.