The crystal structure of α-CF₄

Chemical studies of elements with Z⩾ 104 in gas phase

“…Finally, the Ag column was selected for the online studies with W(CO) 6 and Sg(CO) 6 precluding the use of quartz because of unclear side reactions on the hydroxylated surface. Investigations of the thermal stability of carbonyl complexes with short-lived isotopes 87,87 Mo and 163,164 W were carried out during the first studies on the synthesis of Sg(CO) 6 at GARIS in RIKEN. The temperature inside the deposition column made of Ag varied between 100 and 600 °C.…”

“…Thus, for a solid to gas transition of noble gas crystals, the molar heat of sublimation is equal to six times the dissociation energy (E diss ) of the corresponding dimers: H sub = 12 × (½(E diss N A )), where N A is the Avogadro constant. By applying this approach, one can calculate the dissociation energy values according to equations (1) The values of van der Waals radii for noble gases are taken from [85,86], and effective van der Waals radii eff VdW R of selected non-polar molecules and tetroxides are deduced from crystallographic data [87][88][89][90][91].…”

Clustering of CF4 on graphite as studied by molecular dynamics simulation

“…The bond length between the carbon and the fluorine atoms was fixed to be 1.323 Å according to the experimental data. 21 We ignored possible electrostatic octopole-octopole interactions between CF 4 molecules which may arise from partial ionic character of the C-F bonds. 22 The total potential energy between two molecules i and j depends on the separation r i j and the orientations i and j of these molecules and can be represented as…”

Self-crystallizing molecular models. IV. Revision and conclusion

“…11), which simulates the crystal structure of B4C14, and the other gives monoclinic C2/c (Fig. 12) of e-CF4 (Bol'shutkin, Gasan, Prokhvatilov & Erenburg, 1972). Fig.…”