Bf. Dzhurinskii et Va. Krut'Ko, New mixed oxide compounds of lanthanides: Phosphosilicates Ln(11)O(10)(SiO4)(PO4)(3) (Ln = Pr-Er), RUSS J IN C, 45(8), 2000, pp. 1157-1159
Compounds Ln(11)O(10)(SiO4)(PO4)(3) (Ln = Pr-Er) were prepared by calcining
the products codeposited by ammonia from solutions of stoichiometric compo
sitions. The compounds are isostructural to phosphogermanates of analogous
compositions. The new compounds are characterized structurally and by IR sp
ectra.