Publication
6,6-dimethylbicyclo[3.1.1]heptan-2-one, (1R)-(+)-nopinone, is a liquid at room temperature. It solidifies below 260 K to form an orientationally disordered body-centred cubic phase (a = 7.644 Å at 255 K), which transforms to an ordered structure below 240 K. The low-temperature structure has been solved from powder X-ray diffraction data, and is orthorhombic, space group P212121, Z' = 1, Z = 4, with a = 17.6441(8) Å, b = 6.9682(3) Å, c = 6.5272(3) Å at 120 K.
László Forró, Endre Horvath, Andrzej Sienkiewicz, Alla Arakcheeva, Gaétan Charles Antoine Giriat, Bálint Náfrádi, Márton Kollár, Anastasiia Glushkova
Michael Graetzel, David Lyndon Emsley, Ursula Röthlisberger, Ariadni Boziki, Simone Meloni, Dominik Józef Kubicki, Aditya Mishra