Abstract
The nuclear magnetic resonances of N 14 in the nitrate groups LiNO 3, NaNO 3, KNO 3, AgNO 3, Ag(NH 3) 2NO 3, Zn(NO 3) 2, Pb(NO 3) 2, Cd(NO 3) 2, UO 2(NO 3) 2, and Al(NO 3) 3 have a zero chemical shift with respect to the N 14 peak in the nitrate group of NH 4NO 3 ; the line widths of these resonances are the same. The N 14 peak in HNO 3 is of comparable width but has a large positive shift that is concentration dependent; this observation is in agreement with earlier studies. The N 14 peak in the paramagnetic salt Cu(NO 3) 2 has a large concentration-dependent positive shift. The organic compounds containing NO 2 groups showed positive shifts and line widths approximately 4 times that of the normal nitrates. The N 14 resonance in NaNO 2 is 20 times the width of the normal nitrate resonance and has a large negative shift. The results are discussed.
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