256659-83-3Relevant academic research and scientific papers
Synthesis and characterization of bis(2,4,6-tris(trifluoromethyl)phenyl) derivatives of arsenic and antimony: X-ray crystal structures of As(RF)2Cl, Sb(RF)2Cl, and Sb(RF)2OSO2CF3
Burford, Neil,Macdonald, Charles L. B.,LeBlanc, Daren J.,Cameron, T. Stanley
, p. 152 - 155 (2000)
Bis(2,4,6-tris(trifluoromethyl)phenyl)chloropnictines, Pn(RF)2Cl (Pn = As, Sb) have been synthesized by the reaction of 2 equiv of RFLi with PnCI3 to provide a homologous series. The crystal structures, elemental analyses, and spectral data confirm the introduction of two RF substituents onto the pnictogen center. Sb(RF)2Cl reacts quantitatively with silver triflate or trimethylsilyl triflate to give Sb(RF)2OSO2CF3, while As(RF)2Cl does not react with either triflate reagent. The solid-state structure of Sb(RF)2OSO2CF3 reveals a covalent Sb-O interaction, indicating that, in contrast to the observations for dicoordinate group 14 element derivatives, the fluoromethyl substituents of RF are not sufficiently basic to preclude coordination of the weakly basic anion at the cationic stibenium center.
