0000000001299061
AUTHOR
Marilyn M. Olmstead
The Instability of Ni{N(SiMe3 )2 }2 : A Fifty Year Old Transition Metal Silylamide Mystery.
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.
The Instability of Ni{N(SiMe3)2}2: A Fifty Year Old Transition Metal Silylamide Mystery
The characterization of the unstable NiII 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 NiI 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 NiII to NiI and the stabilization of 4 through dispersion forces. peerReviewed
CCDC 1401116: Experimental Crystal Structure Determination
Related Article: Michelle Faust, Aimee M. Bryan, Akseli Mansikkamäki, Petra Vasko, Marilyn M. Olmstead, Heikki M. Tuononen, Fernande Grandjean, Gary J. Long and Philip P. Power|2015|Angew.Chem.,Int.Ed.|54|12914|doi:10.1002/anie.201505518
CCDC 1401114: Experimental Crystal Structure Determination
Related Article: Michelle Faust, Aimee M. Bryan, Akseli Mansikkamäki, Petra Vasko, Marilyn M. Olmstead, Heikki M. Tuononen, Fernande Grandjean, Gary J. Long and Philip P. Power|2015|Angew.Chem.,Int.Ed.|54|12914|doi:10.1002/anie.201505518
CCDC 1401113: Experimental Crystal Structure Determination
Related Article: Michelle Faust, Aimee M. Bryan, Akseli Mansikkamäki, Petra Vasko, Marilyn M. Olmstead, Heikki M. Tuononen, Fernande Grandjean, Gary J. Long and Philip P. Power|2015|Angew.Chem.,Int.Ed.|54|12914|doi:10.1002/anie.201505518
CCDC 1401115: Experimental Crystal Structure Determination
Related Article: Michelle Faust, Aimee M. Bryan, Akseli Mansikkamäki, Petra Vasko, Marilyn M. Olmstead, Heikki M. Tuononen, Fernande Grandjean, Gary J. Long and Philip P. Power|2015|Angew.Chem.,Int.Ed.|54|12914|doi:10.1002/anie.201505518