Synthesis and characterization of coordinatively unsaturated nickel(ii) and manganese(ii) alkyl complexes supported by the hydrotris(3-phenyl-5- methylpyrazolyl)borate (TpPh,Me) ligand

Mark Abubekerov, Thomas L. Gianetti, Atsushi Kunishita, John Arnold

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13 Scopus citations

Abstract

The synthesis of several nickel(ii) and manganese(ii) alkyl complexes supported by hydrotris(3-phenyl-5-methylpyrazolyl)borate (TpPh,Me) ligand is reported. The metal halide complexes TpPh,MeMnCl(CH 3CN) (1) and TpPh,MeNiCl (4) were used as precursors for synthesis of TpPh,MeMnCH2Si(Me)3 (2), Tp Ph,MeMnCH2Ph (3), TpPh,MeNiCH 2Si(Me)3 (5) and TpPh,MeNiCH2Ph (6). The resulting Mn(ii) and Ni(ii) alkyl complexes, 2-3 and 5-6, were characterized by X-ray crystallography, NMR spectroscopy, and FT-IR spectroscopy. X-ray crystallographic analysis revealed distorted tetrahedral geometries for complexes 2-3 and 5 with a κ3-Tp Ph,Me. Complex 6, on the other hand, was found to have a distorted square planar geometry with κ2-TpPh,Me and an η3-benzyl ligand. Transformations of 4 and TpPh,MeCoCl (10) via treatment with NaN3 to yield TpPh,MeNiN 3 (11), TpPh,MeCoN3 (12), along with the synthesis of (TpPh,Me)2Ni (8) and Tp Ph,MeNiCl(3-Ph-5MepzH) (9) are also reported.

Original languageEnglish (US)
Pages (from-to)10525-10532
Number of pages8
JournalDalton Transactions
Volume42
Issue number29
DOIs
StatePublished - 2013
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

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