Formation, structure, and topotactic exchange reactions of the layered hydrogen bronze HxV3O8

Abstract
On reaction of the non-stoicheiometric vanadium bronze Li1+xV3O8 with aqueous acids a novel type of layered hydrogen bronze H1+xV3O8·nH2O (1; monoclinic lattice parameters: a= 10·27 b= 3·61, c= 12·42 Å, β= 112·5°), which exhibits Brönsted acid and polyelectrolyte character, is obtained in a topotactic process; reaction of (1) with organic Lewis bases L results in the formation of a new class of layered intercalation complexes LnH1+xV3O8.

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