SPECTRA
 

Sample: Strychnine
Solvent: CDCl3
Spectrometer: AVANCE 400
Probehead: Inverse Broadband with z-Gradients
Experiment: Conventional 1H spectrum
Pulse program: zg30 ( Pulse Diagram)
Experiment Time: 50 seconds
Details: AVANCE Tutorial
PARAMETERS
ACQUISITION PROCESSING
td=32k
sw=11
ns=8		 ft using si=32k
COMMENTS
The 1H spectrum of strychnine clearly shows three different types of signals:
  • 17 Aliphatic signals resonating between 1 and 4.5 ppm, demonstrating the possible presence of heteroatoms or ring systems
  • A single resonance at 5.86 ppm, probably due to an isolated double-bond system.
  • A four-spin aromatic system resonating in the region 7-8.1 ppm. The multiplet structure of these protons is in accordance with a lineal ABCD aromatic system.
    • Unambiguous assignment is achieved by analyzing the     2D COSY and the 2D 1H-13C HSQC spectra.
    RELATED ITEMS
    See list of spectra of strychnine
    OBSERVATIONS
     
    PARAMETER SET FILE
    Start from the standard PROTON parameter set