title: The First Structurally Characterized Metal Complex with the Molecular Unit M=C=C=C=CR(2) This work was supported by the Deutsche Forschungsgemeinschaft (SFB 347), the Fonds der Chemischen Industrie (Ph. D. grant to K. I.), and the BASF AG.
authors.affiliation: Institut für Anorganische Chemie der Universität Am Hubland, 97074 Würzburg (Germany).
authors.initials: K
authors.lastname: Ilg
authors.initials: H
authors.lastname: Werner