Abstract
The transfer of F− ion assisted by an organometallic complex cation tetraphenylantimony (TPhSb+) across the polarized nitrobenzene | water (NB | W) interface has been studied by means of ion-transfer voltammetry. A well-defined voltammetric wave was observed within the potential window at the NB | W interface when tetraphenylantimony tetrakis(4-chlorophenyl) borate and F− ion were present in NB and W, respectively. The voltammogram can be interpreted as being due to the reversible transfer of F− ion assisted by the formation of the TPhSbF complex through the coordination of F− to Sb atom in NB. The formal formation constant of TPhSbF in NB has been determined to be 1010.95±0.2 M−1. No voltammetric wave due to the TPhSb+-assisted transfer of other anions such as Cl−, Br−, I−, NO3−, CH3COO− and H2PO4− ions has been observed within the potential window.
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Katano, H., Murayama, Y. & Tatsumi, H. Voltammetric Study of the Transfer of Fluoride Ion at the Nitrobenzene | Water Interface Assisted by Tetraphenylantimony. ANAL. SCI. 20, 553–556 (2004). https://doi.org/10.2116/analsci.20.553
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DOI: https://doi.org/10.2116/analsci.20.553