Issue 48, 2021

Fluoride anion complexation and transport using a stibonium cation stabilized by an intramolecular P[double bond, length as m-dash]O → Sb pnictogen bond

Abstract

We describe the synthesis of [o-Ph2P([double bond, length as m-dash]O)(C6H4)SbPh3]+ ([2]+), an intramolecularly base-stabilized stibonium Lewis acid which was obtained by reaction of [o-Ph2P(C6H4)SbPh3]+ with NOBF4. This cation reacts with fluoride anions to afford the corresponding fluorostiborane o-Ph2P([double bond, length as m-dash]O)(C6H4)SbFPh3, the structure of which indicates a strengthening of the P[double bond, length as m-dash]O → Sb interaction. When deployed in fluoride-containing POPC unilamellar vesicles, [2]+ behaves as a potent fluoride anion transporter whose activity greatly exceeds that of [Ph4Sb]+.

Graphical abstract: Fluoride anion complexation and transport using a stibonium cation stabilized by an intramolecular P [[double bond, length as m-dash]] O → Sb pnictogen bond

Supplementary files

Article information

Article type
Communication
Submitted
06 Oct 2021
Accepted
11 Nov 2021
First published
12 Nov 2021

Dalton Trans., 2021,50, 17897-17900

Author version available

Fluoride anion complexation and transport using a stibonium cation stabilized by an intramolecular P[double bond, length as m-dash]O → Sb pnictogen bond

V. M. Gonzalez, G. Park, M. Yang and F. P. Gabbaï, Dalton Trans., 2021, 50, 17897 DOI: 10.1039/D1DT03370K

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