Electrochemical copper intercalation in ZrTe3 yields the new metallic
ternary phase CuxZrTe3 with a maximum stoichiometry of x=1.9. The char
ge is balanced by filling the sigma antibonding Te p bands, as monito
red by XANES spectroscopy. The reaction is accompanied by an increase
in the a lattice dimension of 9%. This observation is explained by the
oretical calculations. (C) 1997 Elsevier Science S.A.