Hydrothermal synthesis of a new perovskite-type bismuth oxide: Ba_0.96Bi_0.86O_2.59(OH)_0.41

Abstract

A new perovskite-type oxide, Ba_0.96Bi_0.86O_2.59(OH)_0.41 was prepared by low temperature hydrothermal reaction using NaBiO₃·nH₂O and Ba(OH)₂·8H₂O as starting materials. The crystal structure of this compound was refined by single crystal X-ray diffraction data, and the structure refinement with the space group Pm3m (#221) led to R_w = 0.035 and R = 0.054 for all reflections. This compound had the perovskite-type structure with the cubic cell of a = 4.2995(5) Å. The magnetic susceptibility of this compound exhibited no superconductive behavior down to 4 K.