Synthesis and structures of zirconium(IV) hydrogensulfato and carboxylato complexes with Kläui’s oxygen tripodal ligand

Yi, Xiao‐Yi; Zhang, Qian‐Feng; Williams, Ian D.; Leung, Wa‐Hung

doi:10.1016/j.jorganchem.2009.08.036

Cited by 3 publications

(1 citation statement)

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“…We have previously shown that tripyridyl tripodal tetradentate amine ligands confer significant stability to complexes containing chelated hydrogencarbonato and hydrogenphosphato ligands. With this in mind, we attempted to prepare and isolate a chelated hydrogensulfato complex starting from [Co(pmap)(O 2 SO 2 )]ClO 4 , given that there is only one structurally characterised example of such a chelate in the literature, namely the Zr(IV) complex [(L OEt ) 2 -Zr 2 (SO 4 ) 2 (HSO 4 ) 2 ], where L OEt is the Kläui ligand [Co(g 5 -C 5 H 5 ){P(O) (OEt) 2 } 3 ] À [26] The pmap, rather than the pmea, complex was chosen, as the analogous chelated carbonate complex [Co(pmap) (O 2 CO)] + showed the greatest stability in strongly acidic solution of all the carbonate complexes prepared. Cautious dissolution of [Co(pmap)(O 2 SO 2 )]ClO 4 (63 mg) in concentrated H 2 SO 4 (1.00 mL) gave an intensely deep purple solution.…”

Section: Attempted Synthesis Of [Co(pmap)(o 2 So(oh))] 2+mentioning

confidence: 99%

Synthesis, structure and fluxionality of Co(III) complexes containing chelated sulfate

et al. 2020

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Section: Attempted Synthesis Of [Co(pmap)(o 2 So(oh))] 2+mentioning

confidence: 99%

Synthesis, structure and fluxionality of Co(III) complexes containing chelated sulfate

et al. 2020

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Zirconium Complexes

Cibuzar

Novas

Waterman

2021

Comprehensive Coordination Chemistry III

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Organometallic Zirconium Compounds in an Oxygen-Rich Coordination Environment: Synthesis and Structural Characterization of Tris(oxoimidazolyl)hydroboratozirconium Compounds

2018

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A series of tris(oxoimidazolyl)hydroborato ligands, which serve as LX [O] donors, have been employed to obtain organometallic zirconium compounds in an uncommon oxygen-rich coordination environment. For example, Cp[To]ZrCl has been synthesized via the reaction of [To]Na with CpZrCl and bears a structural resemblance to the bent metallocene dichloride derivative CpZrCl. In addition, the half-sandwich counterparts [To]ZrCl and [To]ZrCl have been obtained by metathesis of ZrCl with [To]Na and [To]Na, respectively. The structurally related zirconium benzyl compounds [To]Zr(CHPh) (R = Me, Bu, 1-Ad) have also been synthesized via the reactions of [To]Tl with Zr(CHPh), and X-ray diffraction studies demonstrate that the benzyl ligands in these compounds are conformationally flexible and exhibit a large range of Zr-CH-Ph bond angles (94.7-131.7°). Protolytic cleavage of one of the benzyl ligands of [To]Zr(CHPh) (R = Bu, 1-Ad) may be achieved by treatment with [PhNHMe][B(CF)] to generate {[To]Zr(CHPh)}[B(CF)], which are catalysts for the polymerization of ethylene. The molecular structure of the ether adduct, {[To]Zr(CHPh)(OEt)}[B(CF)], has been determined by X-ray diffraction. In addition to the use of tris(oxoimidazolyl)hydroborato ligands, bis(oxoimidazolyl)hydroborato ligands have also been used to obtain zirconium benzyl compounds in oxygen-rich environments, namely, [Bo]Zr(CHPh) and [Bo]Zr(CHPh).

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Synthesis and structures of zirconium(IV) hydrogensulfato and carboxylato complexes with Kläui’s oxygen tripodal ligand

Cited by 3 publications

References 24 publications

Synthesis, structure and fluxionality of Co(III) complexes containing chelated sulfate

Synthesis, structure and fluxionality of Co(III) complexes containing chelated sulfate

Zirconium Complexes

Organometallic Zirconium Compounds in an Oxygen-Rich Coordination Environment: Synthesis and Structural Characterization of Tris(oxoimidazolyl)hydroboratozirconium Compounds

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