The compound La2MoO5 has a cubic fluorite symmetry. There is strong in
teraction between the two molybdenum ions (IV). The cubic-La2MoO5 oxid
e contains separated Mo2O8 clusters and is a semiconductor. The electr
ical resistivity measurement shows a semiconductor-metal transition ar
ound 250 degrees C. Temperature dependence of magnetic susceptibility
represents the Curie-Weiss law. The compound La2MoO5 exhibits a parama
gnetic behaviour from 170-250 K.