Crystal structure of (Xe2F11+)(VF6-)

Single crystal of (Xe2F11+)(VF6-) has been prepared. Compound crystallises in monoclinic space group P2(1)/n (No. 14) with a =8 55.1(1) pm, b = 889.6( 1) pm, c = 1570.3( 1) pm, beta = 93.31(2)degrees, V = 1.1925(9) nm(3), Z = 4 and rho(c) = 3.545 Mg/m(3). A structure determination using three-dimens ional MoKalpha X-ray data resulted in conventional R and wR factors of 0.04 6 and 0.066 respectively, for 2217 unique reflections for which I greater t han or equal to 3 sigma( I). The structure shows two groups; the essentiall y octahedral VF6- anion and Xe2F11+ cation, which consists of two XeF5 unit s bridged by additional common fluorine atom. Calculation of Mulliken charg es for structural units Xe2F11VF6 and Xe2F11AuF6 has been performed.