The translation-rotation energy levels of the quantum rotors H2 and H2O entrapped inside C60 and C70 cages
In this proposal we aim to investigate the translation-rotation dynamics of entrapped quantum rotors H2 and H2O. These will be confined inside the cages of the fullerenes C60 and C70. The research builds on earlier INS investigations conducted on IN4C and IN5 but aims to record high resolution (1.3%) spectra at higher energy transfer (27 - 200 meV). The coupling of translational and rotational angular momentum with be investigated,revealing itself in splittings of states within the translation-rotation manifold (H2@C60). The influence of cage symmetry will be studied on the ellipsoidal system H2@C70 where translation-rotation coupling will manifest itself in lower dimensions. Further, the translation-rotation of the nuclear spin isomers of water, ortho- and para-water, will be studied in H2O@C60. Further evidence will be sought for symmetry breaking interactions between the water@fullerene complexes, first discovered using IN4 and IN5.
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HORSEWILL Anthony J.; GOH Kelvin; JIMENEZ RUIZ Monica; JOHNSON Mark Robert; LEVITT Malcolm; ROLS Stephane and TURRO Nicholas. (2013). The translation-rotation energy levels of the quantum rotors H2 and H2O entrapped inside C60 and C70 cages. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-05-409
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