2,089 publications from this institution
Magnetic susceptibility studies on single crystals of nearly stoichiometric La2NiO4 with the applied field both parallel and perpendicular to the c axis show a transition at 204 K below which two-dimensional canted antiferromagnetic order seems to exist. This oxide also undergoes a transition from isotropic to anisotropic susceptibility near 100 and 250 K.
Monte Carlo simulations of liquid and supercooled liquid states of neohexane, n-hexane, n-pentane, isopentane, neopentane and a model linear molecule are reported. A quantitative measure of the degree of disorder associated with the molecular centre of mass has been obtained from the minimal spanning tree method. The results suggest a strong dependence of the degree of disorder of the centre of mass on the molecular shape. The changes in the degree of disorder on cooling also depend on molecular geometry. There appears to be little difference in the structures as well as the magnitude of positional disorder of the liquid and the glassy states of linear molecules in contrast to those of globular molecules. Based on the results obtained from the simulations, regions have been identified in the m-σ plane, where one may expect plastic crystalline and liquid crystalline phases. This yields fresh insight into the nature of the structural phase diagram for polyatomic systems.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
