Gated decoupling spectrum

Conditions (CD3)2CO, 25 °C, 400 MHz (H), 100 MHz ( C), 40.55 MHz ( N). (a) //NMR spectrum with expanded partial spectra and integrals (b, c) C NMR spectra, in each case showing proton broadband decoupled spectrum below and gated decoupled spectrum above, (b) ali-phatle resonances and (c) heteroaromatic resonances (d) N NMR speetrum, coupled, with expanded sections and integrals. 

Fig. 16a,b Carbon-13 spectra of compound 1 recorded at 50 MHz. a Standard spectrum with integral values (measurement time 1.5 hours) b inverse gated decoupled spectrum with integral values (measurement time 28 hours )... 

C gated decoupled spectrum. Expanted multiplets peak frequencies in Hz... 

Fig. 2.46. 13CNMR spectra of ( — )-menlhol (lOOmg/mL deuteriochloroform 100.6 MHz) (a) proton broadband-decoupled spectrum (b, c) DEPT spectra with 0y = 90" for CH selection with and without proton decoupling (d, e) DEPT experiments with 0y = 135" for positive CH and CH3 but negative CH2 signals with and without proton decoupling (f) gated-decoupled spectrum for reference (a-e) 16 scans (f) 256 scans. 

Figure 3.26. (A) Gated decoupled spectrum of isopropanol. (B) Noise-decoupled spectrum of isopropanol. The NOE enhancement in (B) can be determined by dividing the peak area in the lower peak by the peak area in the corresponding upper peak.

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