Hickey JP, Butler IS, Pouskouleli G (1980) C-13 NMR-spectra of some representative hormonal steroids. J. Magn. Reson . 38 ; 501–506.Hickey JP, Butler IS, Pouskouleli G. Carbon-13 NMR spectra of some representative hormonal steroids. J. Magn. Reson., 1969; 38(3): 501-506....
Carbon-13 NMR spectra of carotenoids 101 Table 2. "C-NMR datafor the e-end oflutein and related models 2 3 4 5 6 8 Lutein (VII) 34.0 44.7 65.9 125.6 137.8 55.0 8 trans diol (VIII) 34.2 45.5 66.4 125.9 137.8 55.0 8 cis diol (IX) 35.2 41.3 67.3 126.0 138.0 55.0t 8 a-isophor...
Mani F, Peruzzini M, Stoppioni P (2006) CO2 absorption by aqueous NH3 solutions: speciation of ammonium carbamate, bicarbonate and carbonate by 13C NMR study. Green Chem 8:995–1000 Article Google Scholar Barzagli F, Giorgi C, Mani F, Peruzzini M (2017) CO2 capture by aqueous Na2CO3 ...
Previous works22,23 has suggested that the alkali promoter would preferentially occupy the low-coordination corner and edge Ru sites required for the dissociation of chemisorbed H2 using dynamic 1H NMR spectroscopy. Therefore, the structure sensitive, highly mobile and weakly bound β-state of ...
was determined from 1H NMR spectra of the reaction mixture20. While the full data set is given in Supplementary Table 1, we comment on general trends. Conversion of benzylamine, the yield of 1a and the combined yield of R,S- and R,R-2a diastereomers versus the mass of carbon nitride ...
(Fig.2A). Mass spectroscopy and NMR (Additional file1: Figs. S52–S57) were employed to investigate these proposed structures, with confirmation from sedimentary tests. The FT-IR spectrum of fresh and reused catalysts reveals the Fe–O stretching vibration attributed to the iron oxide in the ...
The structures of amorphous carbons have been reviewed byRobertson (1986)andMcKenzie (1996). X-ray andneutron diffractiongiveradial distribution functionswhileNMRandRaman spectroscopy(Fig. 5) as well asEXAFSandXANESprovide information on the relative fractions of sp2and sp3bonds. Reproducing such measur...
Thereby the 13C-labeled fraction of biomass was synthesized in the induced conditions and the information of the pathways that were active when the cellulase gene expression was induced was recorded in the labelling patterns of proteinogenic amino acids. Nuclear Magnetic Resonance (NMR) spectroscopy ...
300 cm−1.13C solid-state NMR was therefore performed to show the presence of carbon (Fig. 2b). Interestingly, the resonance appears around 125 p.p.m., similar to that of reduced graphene oxide/graphite27, which corresponds tosp2carbons with an electron density very similar to graphite...
22). For allyl alcohol, the change of production rate with different reactant mixtures is difficult to ascertain due to the low levels of allyl alcohol produced, approaching the detection limit of 1H NMR (Supplementary Fig. 22). Quantitative gas chromatography–mass spectrometry analysis for 13CO2...