S. Frenzen et H. Mullerbuschbaum, ON NABA3RUO6 AND NABA3IRO6 - 2 NOBLE-META L OXOMETALLATES SHOWING SR4PTO6 STRUCTURE, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 51(8), 1996, pp. 1204-1206
Single crystals of NaBa3RuO6 (I) and NaBa3IrO6 (II) have been prepared
by crystallization from melts in closed silver tubes. The crystal str
uctures were investigated by X-ray techniques. Both compounds crystall
ize with trigonal (rhombohedral) symmetry, space group D-3d(6) -R (3)
over bar c, I: a = 10.107(2), c = 11.872(2) Angstrom, II: a = 10.128(2
), c = 11.905(2) Angstrom Z = 6. I and II are isostructural to the Sr4
PtO6 type.