Search for: [Abstract = "H1 and C13 NMR chemical shifts for neutral \(3\-hydroxypyridine and 3\-methoxypyridine\) and zwitterionic \(N\-ethyl\-3\-oxypyridinium betaine and 3\-pyridone\) molecules were calculated by GIAO\/B3LYP\/6\-31G\(d,p\) and IGLO\/deMon\/NMR approaches. Linear correlations between the calculated and experimental 1H and 13C NMR chemical shifts for 3\-hydroxypyridine, 3\-methoxypyridine, and N\-ethyl\-3\-oxypyridinium betaine suggest that the 3\-hydroxy tautomer is dominant in DMSO\-d6. The lack of such a correlation for 3\-pyridone indicates an absence of this species in DMSO\-d6 solution."]
