Nuclear magnetic resonance COSY spectra

The proton nuclear magnetic resonance (NMR) spectrum of valproic acid was obtained using a Bruker Avance Instrument operating at 300, 400, and 500 MHz. Standard Bruker Software was used to obtain COSY and HETCOR spectra. The... 

H NMR spectrum The proton nuclear magnetic resonance (1H NMR) spectrum of omeprazole were obtained using a Bruker Instrument operating at 300,400, or 500 MHz. Standard Bruker Software was used to execute the recording of DEPT, COSY, and HETCOR spectra. The sample was dissolved DMSO-d6 and all resonance bands were referenced to tetramethylsilane (TMS) as internal standard. The H NMR spectra of omeprazole are shown in Figs. 4.9-4.12 and the COSY H NMR is... 

FIGURE 19-47 300-MHz COSY spectrum of phcnan-lhro[3,4-b]lhiophene. (From J. B. Lambert and E. R Mazzola, Nuclear Magnetic Resonance Spectroscopy, Upper Saddle River, NJ Pearson/Prenlice-Hall. 2004. With permission.)... 

Fig. 3. Nuclear magnetic resonance spectroscopy. The COSY H nmr spectrum of ethyl 4 methylbenzo-ate.

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