THE CRYSTAL AND MOLECULAR STRUCTURE OF OCTAFLUOROBIPHENYLENE, C12F8

Article abstract of DOI:10.1016/S0022-1139(00)85089-7

Octafluorobiphenylene was made by heating 1,2-diiodotetrafluorobenzene in a sealed, evacuated tube with either copper, lead or bismuth.The crystal used for the diffraction studies was grown from hexane.Crystal data: C12F8, M_r = 296.116, monoclinic, A2/a, a = 21.140(2), b = 6.430(6), c = 36.340(3) Angstroem, β = 123.76(3)deg, U = 4106.73 Angstroem³, Z = 16, D_m = 1.884 g cm^-3, D_X = 1.907 g cm^-3, λ(CuKα) = 1.5418 Angstroem, μ =1.810 mm^-1, F(OOO) = 2304, measurement temperature = 293K, R = 0.059 for 2230 reflections with I > 3?(I).