Bi(III) stable in the coordination compounds with XeF₂ as a ligand

Abstract

Dedicated to late Prof. Rudolf Hoppe on the occasion of his 100 th birthday Main group trivalent metal canter is added to the diverse family of coordination compounds with XeF 2 as a ligand for the first time. [Bi(XeF 2 ) 3 ](BiF 6 ) 3 can be prepared by the direct reaction between BiF 3 , BiF 5 and XeF 2 in anhydrous HF as solvent. The compound is stable at room temperature under inert conditions. In the compound, the same metal is found in two oxidation states: Bi(III) and Bi(V). [Bi(XeF 2 ) 3 ](BiF 6 ) 3 crystalizes in hexagonal space group P 6 2 c at 150 K with a = 10.3296(5) Å, b = 10.3296(5) Å, c = 12.1775(7) Å. The metal centre Bi(III) is coordinated with nine F atoms. Six F atoms from BiF 6 units are located in the corners of the trigonal prism, while the rectangular faces of the trigonal prism are capped with F atoms from three XeF 2 ligands. The Bi(III) centres are connected via Bi(V)F 6 units into the three dimensional network. All three XeF 2 ligands are non-bridging.