2H double-quantum NMR spectroscopy for the study of molecular motion in solids
An experiment which separates 2H spinning sideband patterns according to the 2H double-quantum chemical shift in a manner suitable for motional studies is proposed. The technique is successfully applied to 4,4'-azoxydianisole at 323 K to separately analyze the motion of the aromatic and methyl deuterons. Comments are made on the formation of a nematic mesophase in this material at 390 K in the light of the results of this NMR study. Copyright 1997 Academic Press. Copyright 1997Academic Press
Duer
MJ
Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, Great Britain.
Stourton
C