@article { ISI:000086328600013,
	title = {Heteronuclear editing method for detecting NOE between chemically equivalent protons: application to polycyclic aromatic hydrocarbons},
	journal = {Magnetic Resonance in Chemistry},
	volume = {38},
	number = {4},
	year = {2000},
	month = {APR},
	pages = {311-314},
	publisher = {JOHN WILEY \& SONS LTD},
	type = {Article},
	address = {BAFFINS LANE CHICHESTER, W SUSSEX PO19 1UD, ENGLAND},
	abstract = {The complete characterization of polycyclic aromatic hydrocarbons (PAHs) and tetrasubstituted ethylenes is critical to an understanding of their reactivity, for which NMR is an important tool. Chemical shifts can provide a direct measure of charge distribution and aromaticity. Unfortunately, COSY, NOESY and heteronuclear correlation cannot provide a complete assignment of the NMR spectra for some carbon-rich PAHs with symmetrical bay regions. The protons in the bay regions would yield NOE signals if they were not symmetrical. Natural substitution of C-12 with C-13 can be used to break the symmetry and yield these useful NOE signals. Using gradient-assisted editing, unequivocal assignments have been achieved for some previously problematic molecules. Copyright (C) 2000 John Wiley \&amp; Sons, Ltd.},
	keywords = {assignment of symmetrical polycycles, C-13 NMR, H-1 NMR, NMR, NOE, polycyclic aromatic hydrocarbons},
	issn = {0749-1581},
	doi = {10.1002/(SICI)1097-458X(200004)38:4<311::AID-MRC641>3.3.CO;2-L},
	author = {Hoffman, RE and Shenhar, R and Willner, I. and Bronstein, HE and Scott, LT and Rajca, A and Rabinovitz, M}
}
