Crystal Structure of C₆₀F_x

The standard molar enthalpy of formation of fluorofullereneC60F48

“…spectrum were found at (1141.3, 1169.7, and 1238.1) cm −1 (C-F stretching region), and a group of intense lines was observed in the region of (600 to 800) cm −1 at (602.6, 649.8, 722.5, and 770.5) cm −1 . Previously, for characterization of fluorofullerenes, the methods of chemical analysis (6,7) and X-ray photoelectron spectroscopy (x.p.s.) (8) were used.…”

Topochemical solid-state reactions and problems of selective synthesis of fullerene derivatives

“…It should be noted that the difference δ∆ r G° between these energies corresponds to the reaction in the gas phase C 60 F 2m-2 (gas) + C 60 F 2m+2 (gas) = 2 C 60 F 2m (gas), (4) in which the change in the entropy ∆ r S° can reasonably be ignored. Then we have:…”

“…A broad range of compounds, such as FeF 3 , CoF 3 , AgF 2 , AgF, CuF 2 , CuF, K 2 PtF 6 , and rare earth fluorides CeF 4 and TbF 4 , were examined as fluorine sources. [12][13][14][15] The reactions of fluorides MnF 3 , CoF 3 , and CeF 4 with C 60 afford predominantly C 60 F 36 .…”

Direct fluorination of fullerenes

“…The structure of C 60 fullerene at room temperature is described by a face-centred cubic (FCC) lattice with the parameter a = 14.17 # A; the distance between the neighbouring C 60 molecules is 10.02 # A, and the density is 1.72 g cm 72 (which corresponds to 1.44610 21 molecules cm 72 ). 10 Data of numerous X-ray diffraction studies (see, e.g., Refs 19,20,50 ± 53) indicate that at room temperature, the products of fullerene fluorination have the same FCC lattice (Table 6) as the matrix compound C 60 but with an increased spacing. The increase in the distance between two neighbouring molecules following fluorination manifests itself as a shift of diffraction lines to smaller reflection angles: the first maximum is at 2Y = 9 8, 13 which is much smaller than for crystalline C 60 .…”