Hydrothermal synthesis of the perovskite manganites Pr0.5Sr0.5MnO3 and Nd0.5Sr0.5MnO3 and alkali-earth manganese oxides CaMn2O4, 4H-SrMnO3, and 2H-BaMnO3

Mild hydrothermal synthesis (T<240°C) allows the preparation of complex manganese oxides that would usually be prepared using solid-state synthesis at elevated temperatures.