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- W2062412769 abstract "New examples of [C6F5Xe]+ salts of the weakly coordinating anions [B(CF3)4]-, [B(C6F5)4]-, [B(CN)4]-, and [B(OTeF5)4]- have been synthesized by metathesis reactions of [C6F5Xe][BF4] with the corresponding MI[BY4] salts (MI = K or Cs; Y = CF3, C6F5, CN, or OTeF5). The salts were characterized in solution by multi-NMR spectroscopy. Their stabilities in prototypic solvents (CH3CN and CH2Cl2) and decomposition products are reported. The influence of the coordinating nature of [BY4]- on the decomposition rate of [C6F5Xe]+ as well as the presence of the weakly nucleophilic [BF4]- ion has been studied. The electrophilic pentafluorophenylation of C6H5F by [C6F5Xe][BY4] in solvents of different coordinating abilities (CH3CN and CH2Cl2) and the effects of stronger nucleophiles (fluoride and water) on the pentafluorophenylation process have been investigated. Simulations of the 19F and 129Xe NMR spectra of [C6F5Xe]+ have provided the complete set of aryl 19F−19F and 129Xe−19F coupling constants and their relative signs. The 19F NMR parameters of the [C6F5Xe]+ cation in the present series of salts are shown to reflect the relative degrees of cation−solvent interactions." @default.
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- W2062412769 date "2007-09-29" @default.
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- W2062412769 title "Syntheses, Solution Multi-NMR Characterization, and Reactivities of [C<sub>6</sub>F<sub>5</sub>Xe]<sup>+</sup> Salts of Weakly Coordinating Borate Anions, [BY<sub>4</sub>]<sup>-</sup> (Y = CF<sub>3</sub>, C<sub>6</sub>F<sub>5</sub>, CN, or OTeF<sub>5</sub>)" @default.
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- W2062412769 doi "https://doi.org/10.1021/ic7010138" @default.
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