HMBCHouston Minority Business Council (Houston, TX)
HMBCHeteronuclear Multiple-Bond Correlation
HMBCHeteronuclear Multiple-Bond Connectivity (chemistry)
HMBCHeteronuclear Multiple Bond Connectivity (phytochemistry)
HMBCHuman Mixed Brain Culture
HMBCHeavy Metal Binding Capacity
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References in periodicals archive ?
DBE, whereas, the remaining two DBE could be attributed to two carbamic acid moieties, which were further substantiated due to HMBC correlation (Figure 2) of the two amine protons (I' 9.50 and 8.49) with the most downfield carbons at I' 153.9 and 152.5 respectively.
The [sup.1]H-, [sup.13]C, DEPT-135, COSY, HSQC, and HMBC spectra generated for identifying compound 2 as vernolide are annexed as a supporting material 1, 2, 3, 4, 5, and 6, respectively.
Blagbrough, "[sup.1]H, [sup.13]C, 15N HMBC, and 19 F NMR spectroscopic characterisation of seized flephedrone, cut with benzocaine," Journal of Pharmaceutical and Biomedical Analysis, vol.
These two partial structures were connected through a nonprotonated carbon (C-6) on the basis of HMBC correlations of H-4, H-7, H-8, H-12, and H-13 to C-6.
The structures of isolated compounds were elucidated based on 1-dimensional ([sup.1]H and [sup.13]C NMR) and 2-dimensional NMR (HMQC and HMBC) spectral data, by comparing with published spectral data, electronic impact (EI), and fast atom bombardment (FAB) mass spectrometry (MS) data.
A complete assignment of [sup.1]H and [sup.13]C NMR spectra of the hydrazones was based on analysis of NMR and 2D spectra (the HMBC correlations of 4b and 4e compounds were shown in the structures at Tables 2 and 3) and is presented in Tables 2 and 3.
The ID experiment for the smaller, 5-15 Hz coupling is the HMBC. Consequently, in HSQC and HMQC experiments, [.sup.2][J.sub.CH] and [.sup.3][J.sub.CH] are not typically observed, and in the HMBC experiment the single bond coupling ([.sup.1][J.sub.CH]) is not typically observed.
Another from HMBC said: "These proposals haven't considered religion or beliefs as required by the Equality Act 2010."
The structure and molecular formulas of 8-hydroxytetradecahydro-chrysene-1carbaldehyde, inferred from the MS spectrum, 1 D NMR, COSY, and HMBC spectra, are confirmed as AD3 (Scheme 3) and C19H42O2, respectively