title: Three-level synthetic strategy towards mixed-valence and heterometallic [2 x 2] gridlike arrays.
authors.affiliation: Laboratoire de Chimie Supramoléculaire, ISIS/Université Louis Pasteur, 8 allée Gaspard Monge, 67083 Strasbourg, France.
authors.forename: Lindsay H
authors.initials: LH
authors.lastname: Uppadine
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Lehn