M. Koudabonafos et al., TOTAL ASSIGNMENT OF H-1 AND C-13 NMR CHEMICAL-SHIFTS OF A NATURAL ANTHOCYANIDIN, APIGENINIDIN, USING 2-DIMENSIONAL COLOC AND HMBC TECHNIQUES, Magnetic resonance in chemistry, 34(5), 1996, pp. 389-392
The H-1 and C-13 NMR spectra of apigeninidin chloride were assigned ut
ilizing the two-dimensional delta(c), delta(H) correlation and COLOC a
nd HBMC techniques. The full C-13 NMR data are reported for the first
time. A good correlation was found between C-13 chemical shifts and ca
rbon charge obtained by AM1 calculation.