NOESYNuclear Overhauser Effect Spectroscopy (2D NMR method used to map NOE correlations between protons within a molecule)
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1]HNMR, 2D NOESY 'H-NMR, and XRD characterization results showed that ICs between host HP-[beta]-CD and guest PVA were prepared through polymer processing, and cylindrical cavities of HP-[beta]-CD didn't completely inclusive the PVA chain side by side, that is to say, PVA/HP-[beta]-CD ICs formed was sparse.
50], 50% inhibition concentration against HBV synthesis; MTT, methyl thiazolyl tetrazolium; NOESY, nuclear Overhauser enhancement spectroscopy; SI, selectivity index; TLC, thin layer chromatography.
Abbreviations: NMR, nuclear magnetic resonance; HMQC, heteronuclear multiple quantum coherence; HMBC, heteronuclear multiple bond correlation; COSY, correlation spectroscopy; NOESY, nuclear overhauser effect spectroscopy; MOE, molecular operating environment; [IC.
The NOESY experiment provided information on the stereochemistry of the chiral centres (C-7, C-8 and C-10).
Relative configuration of compound 2 was based on coupling constant and NOESY experiment.
1] COSY, NOESY, HMQC and HMBC NMR experiments were carried out using a Bruker Avance 400 NMR spectrometer (Bruker.
This unit is linked at position 1 to the glucose at C-1' what was substantiated in the NOESY spectrum as well as by the corresponding [3.
sup 13]C, COSY, NOESY, HMBC and HMQC experiments, were recorded on Bruker AMX-400 and -300, using tetramethylsilane (TMS) as internal standard.
Spectral analysis (IR, UV, MS, (1) H NMR, (13) C NMR, NOESY, TOCSY, HMQC, HMBC) and comparison with literature data allowed the identification of compounds 1-3.
13]C-NMR (100 MHz), NOESY, HSQC, HSQC-TOCSYand HMBC spectra were obtained in [CD.
NOESY experiment was performed based on the noesyph pulse program.
H] NOESY spectra were recorded using the following parameters: 512H512 data matrix size; time domain (td) = 512 in F1 and 1024 in F2; D1=2s; D0 = 3.