In polycrystalline samples, NMR "powder spectra" are broad and much structural informa ion is ost as a result of the orientational disorder In th' Lett F n zs er Fourier-transform R m zero magnetic field is described. With no f d d no pre erre irection in space, all direct in ter crystallites contribute equivalently and resolved d 1 1'tt' ve zpo ar sp ettings can be interpreted irect y in terms of internuclear distances. This open th 'bl'-f s e posse ray-o molecular strucure etermination without the need for single crystals or oriented samples
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