The syntheses of the 4-coordinate Tp'MCl complexes (where M = Fe (1), Mn (2); and Tp' = hydrotris(3-isopropyl-4-bromopyrazolyl)borate) are described. The single-crystal X-ray structures show that the metal centers have distorted tetrahedral coordination. Analogous reaction of CrCl(2)(MeCN)(2) with TlTp' gave Cr(kappa(3)-Tp')(kappa(2)-Tp') (3) as the initial product. The 5-coordinate structure was assigned by single-crystal X-ray crystallography, and it was found that the kappa(3) ligand had i...Expand abstract
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Variable coordination modes of hydrotris(3-isopropyl-4-bromopyrazolyl)borate (Tp') in Fe(II), Mn(II), Cr(II), and Cr(III) Complexes: formation of MTp'Cl (M = Fe and Mn), structural isomerism in CrTp'(2), and the observation of Tp' (-) as an uncoordinated anion.
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