Molecular structure of perfluoroadamantane from gas-phase electron diffraction

Article abstract of DOI:10.1016/S0022-2860(97)00412-2

The following bond lengths (r(g)) and bond angles have been determined for perfluomadamantane from gas-phase electron diffraction: C-C 1.560 ± 0.003, C(F₂)-F 1.340 ± 0.005, C(F)-F 1.363 ± 0.010 A, CC(F₂)C 107.7 ± 0.9, CC(F)C 110.3 ± 0.4, FC(F₂)F 106.9 ± 0.4, C(F₂)CF 108.6 ± 0.4 and C(F)CF 110.5 ± 0.2°. Perfluorination is found to expand the adamantane cage, characterized by a 0.02 A lengthening of the C-C bonds.