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The University of Southampton
Chemistry

Research project: Grossel: Supramolecular Approaches to Cryogenic NMR Relaxation Agents

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We have been developing new supramolecular complexes for use as Cryogenic NMR relaxation agents as part of a Basic Technology funded project led by Prof Malcolm Levitt and involving collaboration groups in the Southampton Engineering and Biology Schools and groups in Nottingham and Leeds.

We are exploring two complementary approaches to this problem. In the first of these we are preparing functionalized endohedral fullerene complexes such as H2@C60 (in which an H2 molecule is locked inside the fullerene cavity) and behaves as a quantum rotor. The second approach uses calix[4]arene complexes containing freely rotating methyl groups (as in toluene, p-xylene, etc.).

M. Carravetta, A. Danquigny, M. Murata, S. Mamone, F. Cuda, I. Heinmaa, R. Stern, A. Samoson, A. J. Horsewill, M. Grossel, Y. Murata, K. Komatsu, and M. H. Levitt, “Solid-state NMR of endohedral hydrogen-fullerene complexes. The influence of cage symmetry on three-dimensional rotors”, Phys. Chem. Chem. Phys, 2008, in press.
K. S. Panesar, A. J. Horsewill, F. Cuda, M. Carravetta, S. Mamone, A. Danquigny, M. C. Grossel, and M.H. Levitt, “Thermal history effects and methyl tunnelling dynamics in a supramolecular complex of calixarene and para-xylene” J. Chem. Phys, 2008, in press.

Related research groups

Organic Chemistry: Synthesis, Catalysis and Flow
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