… nickel (0) aryne and nickel (II) biphenyldiyl complexes via in situ dehydrohalogenation of arenes. Molecular structures of [Ni (2, 2′-C 6 H 4 C 6 H 4)(dcpe)] and C …

MA Bennett, MR Kopp, E Wenger, AC Willis

Index: Bennett, Martin A.; Kopp, Mike R.; Wenger, Eric; Willis, Anthony C. Journal of Organometallic Chemistry, 2003 , vol. 667, # 1-2 p. 8 - 15

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Abstract

Reactions of the aromatic halides chlorobenzene, 9-bromophenanthrene and chloro-p- xylene with lithium 2, 2, 6, 6-tetramethylpiperidide (LiTMP) in the presence of [Ni (η2- C2H4)(dcpe)](1) generated the corresponding η2-aryne complexes [Ni (η2- aryne)(dcpe)][aryne= C6H4 (2), 9, 10η-C14H8 (4) and 2, 3η-1, 4-Me2C6H2 (9)], which could not be isolated as pure compounds but were identified tentatively on the basis of ...