ChemInform Abstract: Resolving Composition and Structure of RE—Sb—O—C Natural Superlattice Phases (RE: La, Ho).

Abstract La 14 Sb 8 O 7 C (I), La 8.80 Sb 5 (O,C) 5 (II), La 9 Sb 5 O 4 C (III), Ho 8.84 Sb 5 (O,C) 5 (IV), and Ho 9 Sb 5 O 4 C (V) are synthesized from mixtures of antimony, La 2 O 3 or Ho 2 O 3 , and carbon powders (1000 °C, 48 h; annealing at 1400—1575 °C).