Synthesis and structures of Co bis-trifluoromethylpyrazolate complexes.
作者： Joseph H. Rivers , Richard A. Jones
DOI: 10.1039/C3DT50758K
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摘要: Reactions of Co(PMe3)3Cl or CoCl2 with 3,5-(CF3)2-PzNa in hexane give Co(PMe3)3(3,5-(CF3)2-Pz) (1) and Co(PMe3)3(3,5-(CF3)2-Pz)2 (2) respectively (3,5-(CF3)2-PzNa = sodium bis-trifluoromethylpyrazolate). Reaction (3,5-(CF3)2-PzH) Co(PMe3)4 produces the unusual complex [cis-Co(PMe3)4H2][Co(PMe3)(3,5-(CF3)2-Pz)3] (3) which formally contains a [Co(III)]+[Co(II)]− ion pair. 3,5-(CF3)2-PzLi an oxygenated suspension 3 equivalents PMe3 gives (3,5-(CF3)2-Pz)2Co(μ-3,5-(CF3)2-Pz)(μ-OPMe3)Li(OPMe3)2 (4), while 2 reacts LiOH to [(PMe3)Co(μ-3,5-(CF3)2-Pz)2(μ3-OH)Li]2 (5). Both react O2 toluene solution Co(OPMe3)2(3,5-(CF3)2-Pz)2 (6). All compounds have been characterized spectroscopically by single crystal X-ray diffraction studies.
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