New Coordination Compounds of Cd(AsF6)2 with HF and XeF2

• Published in: Inorganic chemistry Vol. 43; no. 4; pp. 1452 - 1457
• Main Authors: Tavcar, Gasper, Benkic, Primoz, Zemva, Boris
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 23-02-2004
• ISSN: 0020-1669; 1520-510X
• DOI: 10.1021/ic035166q

Two new coordination compounds of cadmium with HF and XeF2 as ligands have been synthesized. Solid white [Cd(HF)](AsF6)2 is obtained from an anhydrous HF (aHF) solution of Cd(AsF6)2. It crystallizes in a monoclinic P21/c space group with a = 9.4687(14) Å, b = 9.2724(11) Å, c = 10.5503(18) Å, β = 104.887(7)°, and Z = 4. The coordination sphere of Cd consists of 7 + 2 fluorine atoms, which are in a capped trigonal-prismatic arrangement. The reaction between Cd(AsF6)2 and XeF2 in aHF yields a solid white product at room temperature having the composition [Cd(XeF2)4](AsF6)2 after the excess XeF2 and solvent have been removed under dynamic vacuum. [Cd(XeF2)4](AsF6)2 crystallizes in the orthorhombic space group P212121, with a = 8.6482(6) Å, b = 13.5555(11) Å, c = 16.6312(14) Å, and Z = 4. The coordination sphere of Cd consists of eight fluorine atoms, which are at the corners of a trigonal prism with two capped side faces.