title: Nitrile-nitrile C-C coupling at group 4 metallocenes to form 1-metalla-2,5-diaza-cyclopenta-2,4-dienes: synthesis and reactivity.
abstract: The CC coupling of aryl nitriles at Group 4 metallocenes leads to unusual ring-strained 1-metalla-2,5-diaza-cyclopenta-2,4-dienes. The structural, energetic, and chemical properties of these complexes are described. The reactions of these compounds towards CH3 CN, H2 , CO2 , and HCl usually lead to the release of one nitrile and its replacement by different co-substrates.
authors.affiliation: Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock (Germany).
authors.forename: Lisanne
authors.initials: L
authors.lastname: Becker
authors.forename: Perdita
authors.initials: P
authors.lastname: Arndt
authors.forename: Haijun
authors.initials: H
authors.lastname: Jiao
authors.forename: Anke
authors.initials: A
authors.lastname: Spannenberg
authors.forename: Uwe
authors.initials: U
authors.lastname: Rosenthal
keywords: DFT calculations; metallacycles; metallocenes; nitrile-nitrile coupling