title: Two metal ions coordinated to a purine residue tolerate each other well.
authors.affiliation: Institute of Inorganic Chemistry, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.
authors.forename: Bernd
authors.initials: B
authors.lastname: Knobloch
authors.forename: Roland K O
authors.initials: RK
authors.lastname: Sigel
authors.forename: Bernhard
authors.initials: B
authors.lastname: Lippert
authors.forename: Helmut
authors.initials: H
authors.lastname: Sigel