J. Phys. IV France 114 (2004) 645
Millimetre-wave and magnetic studies on a high-spin molecule, Cr 10(OMe) 20(O 2CCMe 3) 10S. Sharmin1, 1, A. Ardavan1, S.J. Blundell1, A.I. Coldea1, E.J.L. McInnes2 and D. Low2
1 Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, UK
2 Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK
We report millimetre-wave and magnetic measurements on single crystals of the high-spin molecular magnet, Cr 10(OMe) 20(O 2CCMe 3) 10. The susceptibility data obtained using a SQUID magnetometer indicate that this molecule has a total spin of S=15. The temperature dependence of the magnetisation allows us to estimate the intermolecular exchange constant. The EPR spectra were obtained at different frequencies, angles and temperatures. The results are compared with numerical simulations allowing determination of the Hamiltonian parameters.
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