Crystal structure of (IOF3·IO2F3)2
Abstract
The crystal structure of (IOF3·IO2F3)2 has been determined from three-dimensional X-ray counter data at -45 °C. Crystals are monoclinic with a= 9.832(4), b= 8.307(5), c= 10.187(7)Å, β= 125.46(7)°, U= 677.7 Å3, Z= 4, and Dc= 4.08 g cm–3. The structure has been refined in the space group P21/n to a final conventional R′ index of 0.061 for 1 289 independent reflections. It consists of two IOF2 and two IO2F4 units linked by asymmetric oxygen bridges to give a cyclic molecule. These molecules are weakly bounded together in sheets by additional weak oxygen bridges.