NITRIDO-SODALITES .2. SYNTHESIS, CRYSTAL- STRUCTURE AND PROPERTIES OFM(6+(Y 2)-X)H-2X[P12N24]Z(GAMMA) WITH M=FE, CO, NI, MN, Z=CL, BR, I -0-LESS-THAN-OR-EQUAL-TO-X LESS-THAN-OR-EQUAL-TO-4 - Y-LESS-THAN-OR-EQUAL-TO-2/

The nitrido sodalites M(6+(y/2)-x)H-2x[P12N24]Z(y) with M = Fe, Co, Ni , Mn; Z = Cl, Br, I; 0 less than or equal to x less than or equal to 4 ; y less than or equal to 2 are obtained by the reaction of HPN2 or [P N(NH2)(2)](3) with the metal halogenide MZ(2) (T = 700 degrees C). The compounds are isotypic to Zn-(7-x)H-2x[P12N24]Cl-2. An increase of th e ionic radii of the cations or anions results in an expansion of the lattice which is caused by an increase of the P-N-P angle. The influen ce of the cation is more dominant than that of the anion. By reacting [PN(NH2)(2)](3) with metal halogenide (MZ(2)) hydrogen free, X-ray amo rphous products are obtained. The formation of the chloride-containing P-N-sodalite in this reaction begins at temperatures below 450 degree s C.