Tungsten trioxide layered compounds

摘要

A new composition of matter comprising layered compounds of tungsten trioxide and heterocyclic nitrogen or oxygen Lewis bases which have a unique layered structure. The layered compounds have the formula LWO3 where L is a Lewis base selected from the group consisting of 5-membered heterocyclic amines, 6-membered heterocyclic amines, amine oxides, triorganophosphates, phosphine oxides and sulfoxides, the layered compounds being characterized in that L is covalently bound to a tungsten atom in the tungsten oxide layer.