The 13C NMR signal of the CNO carbon atom in nitrile oxides is in general so broad at room temperature that it is often undetectable. This result has been related to the quadrupolar relaxation mechanism of the adjacent 14N nucleus. The unusual behavior of trimethylsilanecarbonitrile oxide, exhibiting a sharp 13C triplet and a narrow 14N singlet, indicates a dramatic increase in the 14N relaxation time, ascribed to the reduction of the electric field gradient around the 14N nucleus arising from a higher electron density on the adjacent carbon atom. © 1982.
De Sarlo, F., Brandi, A., Guarna, A., Niccolai, N. (1982). A multinuclear magnetic resonance study of nitrile oxides. JOURNAL OF MAGNETIC RESONANCE, 50(1), 64-70 [10.1016/0022-2364(82)90031-2].
A multinuclear magnetic resonance study of nitrile oxides
Niccolai, Neri
1982-01-01
Abstract
The 13C NMR signal of the CNO carbon atom in nitrile oxides is in general so broad at room temperature that it is often undetectable. This result has been related to the quadrupolar relaxation mechanism of the adjacent 14N nucleus. The unusual behavior of trimethylsilanecarbonitrile oxide, exhibiting a sharp 13C triplet and a narrow 14N singlet, indicates a dramatic increase in the 14N relaxation time, ascribed to the reduction of the electric field gradient around the 14N nucleus arising from a higher electron density on the adjacent carbon atom. © 1982.
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https://hdl.handle.net/11365/32459
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