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The Instability of Ni{N(SiMe3 )2 }2 : A Fifty Year Old Transition Metal Silylamide Mystery.
Faust, Michelle; Bryan, Aimee M; Mansikkamäki, Akseli; Vasko, Petra; Olmstead, Marilyn M; Tuononen, Heikki M; Grandjean, Fernande; Long, Gary J; Power, Philip P.
Afiliação
  • Faust M; Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, CA 95616 (USA).
  • Bryan AM; Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, CA 95616 (USA).
  • Mansikkamäki A; Department of Chemistry, NanoScience Center, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä (Finland).
  • Vasko P; Department of Chemistry, NanoScience Center, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä (Finland).
  • Olmstead MM; Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, CA 95616 (USA).
  • Tuononen HM; Department of Chemistry, NanoScience Center, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä (Finland). heikki.m.tuononen@jyu.fi.
  • Grandjean F; Department of Chemistry, Missouri University of Science and Technology, University of Missouri, Rolla, MO 65409-0010 (USA).
  • Long GJ; Department of Chemistry, Missouri University of Science and Technology, University of Missouri, Rolla, MO 65409-0010 (USA).
  • Power PP; Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, CA 95616 (USA). pppower@ucdavis.edu.
Angew Chem Int Ed Engl ; 54(44): 12914-7, 2015 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-26332337
ABSTRACT
The characterization of the unstable Ni(II) bis(silylamide) Ni{N(SiMe3 )2 }2 (1), its THF complex Ni{N(SiMe3 )2 }2 (THF) (2), and the stable bis(pyridine) derivative trans-Ni{N(SiMe3 )2 }2 (py)2 (3), is described. Both 1 and 2 decompose at ca. 25 °C to a tetrameric Ni(I) species, [Ni{N(SiMe3 )2 }]4 (4), also obtainable from LiN(SiMe3 )2 and NiCl2 (DME). Experimental and computational data indicate that the instability of 1 is likely due to ease of reduction of Ni(II) to Ni(I) and the stabilization of 4 through dispersion forces.

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: Angew Chem Int Ed Engl Ano de publicação: 2015 Tipo de documento: Artigo