| Affiliation: | 1. Fakult?t für Chemie, Universit?t Bielefeld, Postfach 100131, 33501 Bielefeld (Germany), Fax: (+49)?521‐106‐6003;2. Permanent address: Al‐Mustansiriya University, College of Science, Department of Chemistry, P O Box 46010, Baghdad (Iraq);3. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012 Changchun (P. R. China);4. Universit?t Hamburg, Fachbereich Chemie, Institut für Anorganische und Angewandte Chemie, Martin‐Luther‐King‐Platz 6, 20146 Hamburg (Germany), Fax: (+49)?40‐42838‐2893;5. Department of Chemistry, Lehigh University, Bethlehem, PA (USA) |
