„BaNb3O6“ ist ein Perowskit BaNbO3, eine Korrektur und ein Beitrag zu BaxNbO3/“BaNb3O6“ is a Perovskite BaNbO3, a Correction and a Contribution to BaxNbO3

It is shown that the trigonal compound “BaNb3O6” described earlier actually is the cubic perovskite BaNbO3 with an unusually small lattice constant of 4.039 A. Furthermore, the refinement of the single crystal data prepared by CO2-LASER techniques did not reveal defects at the Ba position, but defects at the positions of niobium and oxygen, corresponding to the composition Ba(NbO3)0.9 or Ba1.08NbO3.