(CuI)(2)P-14: A novel phosphorus polymer in a copper halide matrix

(CUI)(2)P-14 is a new adduct of copper iodide to a neutral phosphorus polymer. It is obtained by reaction of CuI and P-red at 400 degrees C. The compound crystallizes monoclinically, space group P2(1)/c (No. 14), a = 9.919(2), b = 9.718(2), c = 16.478(3) Angstrom, beta = 105.71(1)degrees, V = 1529.0(7) Angstrom(3), with Z = 4. The crystal structure was refined to R1 = 0.029 for 2680 reflections and 173 parameters. It contains a new polymeric phosphorus allotrope with the translational unit P-14(+/-0) consisting of experimentally unknown [P12] groups which are Linked by [P2] fragments. The phosphorus rods consist of five and six-membered rings, and are coordinated only by copper atoms.