Organometallics CIF format. This material is available free <strong>of</strong> charge via the Internet ■ at http://pubs.acs.org. AUTHOR INFORMATION Corresponding Author *E-mail: jgr@um.es, http://www.um.es/gqo/. ■ ACKNOWLEDGMENTS We thank the Spanish Ministerio de Ciencia e Innovacioń (grant CTQ2007-60808/BQU, with FEDER support) and Fundacioń Seńeca (grants 02992/PI/05 and 04539/GERM/06) for financial support. ■ DEDICATION † DedicatedtoPr<strong>of</strong>.JuanFornieś on the occasion <strong>of</strong> his retirement. ■ REFERENCES (1) Engle, K. M.; Mei, T.-S.; Wang, X.; Yu, J.-Q. Angew. Chem., Int. Ed. 2011, 50, 1478. (2) Tomashenko, O. A.; Grushin, V. V. Chem. Rev. 2011, 111, 4475. (3) Furuya, T.; Kamlet, A. S.; Ritter, T. Nature 2011, 473, 470. (4) Morrison, J. A. Adv. Organomet. Chem. 1993, 35, 211. (5) Hughes, R. P. Adv. Organomet. Chem. 1990, 31, 183. (6) Grushin, V. V.; Marshall, W. J. J. Am. Chem. Soc. 2006, 128, 12644. (7) Dubinina, G. G.; Brennessel, W. W.; Miller, J. 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