NOE correlations in the rotating frame, which never vanish whatever the molecule's size.
Checked against A. A. Bothner-By, R. L. Stephens, J. Lee, C. D. Warren, R. W. Jeanloz, J. Am. Chem. Soc. 106, 811–813 (1984), doi:10.1021/ja00315a069; A. Bax, D. G. Davis, J. Magn. Reson. 63, 207–213 (1985), doi:10.1016/0022-2364(85)90171-4.
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