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Neutron Scattering Studies of C 6 H 12 and C 6 D 12 Cyclohexane under High Pressure
Author(s) -
Mayer J.,
Urban S.,
Habrylo S.,
Holderna K.,
Natkaniec I.,
Würflinger A.,
Zajac W.
Publication year - 1991
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221660207
Subject(s) - cyclohexane , hydrostatic pressure , neutron diffraction , raman spectroscopy , inelastic neutron scattering , neutron spectroscopy , neutron scattering , analytical chemistry (journal) , crystallography , raman scattering , crystal structure , chemistry , spectroscopy , materials science , scattering , physics , optics , thermodynamics , organic chemistry , quantum mechanics
The results of inelastic neutron scattering (INS) and neutron diffraction (ND) studies of both, C 6 H 12 and C 6 D 12 cyclohexane under hydrostatic pressure (up to 3.7 × 10 8 Pa) and in the temperatures down to 160 K, are reported. All the solid phases (three in C 6 H 12 and four in C 6 D 12 ) are well seen in the INS and ND experiments. The lattice vibration spectra strongly depend on the crystal phase, on the applied pressure, and on the isotopic substitution. In view of the complementary Raman spectroscopy results (under atmospheric pressure) it is concluded that the molecular dynamics plays a decisive role in the mechanism of the consecutive phase transitions in cyclohexane.