Spectroscopy of light-molecule endofullerenes

Orateur : Salvatore MAMONE (School of Physics and Astronomy, University of Nottingham, University Park NG7 2RD, Nottingham (UK))

Molecular endofullerenes are supramolecular complexes in which small molecules are permanently inserted inside the cavity of fullerenes. Such systems represent an ideal playground for testing fundamental quantum molecular theory and models. In this talk the attention will be focussed on the quantum dynamics and the spectroscopy of three notable molecular endofullerenes : specifically, H2@C60, H2O@C60 and the recently synthesized HF@C60. Following the confinement into the fullerene nano-cavity the dynamics of the endohedral molecules is characterized by the quantization of the rotational and translational degrees of freedom and their mutual coupling. The ensuing complex quantum dynamics is unravelled by combining complementary spectroscopic techniques such as inelastic neutron scattering, infrared absorption spectroscopy and nuclear magnetic resonance and with the support of computational models. Such analysis provides valuable information about the interactions in guest-host complexes of carbon nanomaterials.

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