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 1306.    ---------------.  [HÄGG, G.] [Metallic Nitrides, Carbides, Borides, and Hydrides.]  Metallwirtschaft, vol. 10, 1931, pp. 387-390; Chem. Abs., vol. 25, 1931, p. 4192.

       Discussion of the chemical and physical properties of the nitrides, carbides, borides, and hydrides of the metallic elements, particularly as related to the lattice structure of these compounds.  Special attention is given to the compounds of these elements with such transitional metals as V, Cr, Ti, Mn, Fe, Co, Ni, Mo, W, Os, Ir, Pt, U.  The nitrides, borides, carbides, and hydrides of these metals exhibit strongly metallic properties, while analogous compounds with the other metals are nonmetallic in nature.  The lattice structure of these transitional elements seems to be characterized by an electron defect, and this together with the small atomic radii of the metalloids in question seem to be a factor in the metallic nature of these compounds.