13 C - NMR
IR, 1H NMR,13 C NMR, MS, and elemental analyses. The newly synthesized compounds were tested for their anti-
... A new series of 2-[(1-substituted)-2,6-dioxo-2,3,6,7–tetrahydro-1H-purin-8-ylsulfanyl]-N-substituted acetamide 16- 29, and 1-substituted-8-[2-(4-substituted phenyl)-2-oxoethylsulfanyl]-3,7-dihydro-1H-purine-2,6-diones ...
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Stability of soil organic matter in Cryosols of the maritime Antarctic: insights from 13 C NMR and electron spin resonance spectroscopy
... of C-alkyl : C-aryl and C-alkyl : O-N-alkyl have been successfully used to assess humification degree (Kinker, ...The C / H ratio from hu- mic acids (HAs) has been used as an index of ...
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H NMR, 13 C NMR and mass spectral data. The
... H NMR and 13 C spectra were recorded on a Varian 400 MHz NMR spectrometer/Perkin- Elmer EM300 MHz spectrometer using TMS as an internal ...
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HNMR, 13 C NMR and mass spectra. The biological
... [ 13 C and 1 H] NMR were determined on a Jeol-Ex-270 NMR spectrometer (JEOL, Tokyo, Japan) and chemical shifts were expressed as part per million; ppm (δ values) against TMS as internal ...
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H NMR, 13 C NMR, 31 P NMR and Mass spectroscopy and investigated their antimicrobial activity.
... H NMR, 13 C NMR, 31 P NMR and mass ...of C=O of ester, 1228 cm -1 indicates presence of P=O and band at 1053 cm -1 and 1024 cm -1 indicates presence of –C-O stretching of ...
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H NMR, 13 C NMR, mass spectra and elemental analysis. All the
... The reaction of 2-(methylthio)-10H-phenothiazine (1) with hydrazine hydrate afforded 1-(10H-phenothiazin- 8-yl)hydrazine (2) and that with ethyl acetoacetate afforded 3-methyl-1-(10H-phenothiazin-8-yl)-1H-pyrazol- ...
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Lack of effect of ageing on acetate oxidation in rat skeletal muscle during starvation: a (13)C NMR study
... The β-oxidation of free fatty acids may be impaired with ageing (Shigenaga et al., 1994), and the activity of citrate synthase, a major enzyme in flux-generating reactions in the TCA cycle, may decline with advancing age ...
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H NMR, 13 C NMR and mass spectral data. All the synthesized compounds were screened for
... The reaction sequences employed for the synthesis of title compounds is shown in Scheme I. The 4-methyl thio phenyl acetonitril (1) is oxidized to 4-(methyl sulfonyl) phenyl acetonitril (2). This on hydrolysis (3) ...
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H NMR, 13 C NMR and UV spectral data. Besides, the newly synthesized compounds were analysed
... In this paper, ten novel [2-Methoxy-5-(3-alkyl-4,5-dihydro-1H-1,2,4-triazol-5-one-4-yl)-azomethinphenyl benzoates (4) were obtained with the reactions of 3-alkyl(aryl)-4-amino-4,5-dihydro-1H-1,2,4-triazol-5-ones (2) and ...
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Stability and biodegradability of organic matter from Arctic soils of Western Siberia: insights from 13 C-NMR spectroscopy and elemental analysis
... Abstract. Arctic soils contain large amounts of organic mat- ter which, globally, exceed the amount of carbon stored in vegetation biomass and in the atmosphere. Recent studies emphasise the potential sensitivity for ...
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H-NMR, 13 C-NMR, and GCMS. The ligand behaved as a bidentate
... A Schiff base ligand, 4-benzylimino-2-3-dimethyl-l-phenylpyrazal-5-one have been synthesized by the condensation of Benzaldehyde and 4-aminoantipyrine. Its divalent metal complexes of Fe, Co, Ni, Cu and Zn were also ...
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H NMR, 13 C NMR, elemental analysesand IR of synthesized
... H NMR and 13 C NMR showed the exact number of protons and carbons respectively in the expected region for the predicted structures of the ...
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H NMR, 13 C NMR, EIMS). Newly synthesized compounds were
... A new series of N-methyl-5-substituted-1H-indole-2-oxo-3-((2 ′ -acetamidothiazol-4 ′ -yl)carbonylmethyl hydrazones) (5a-j) were synthesized with high degree of purity and in excellent yield. The structures of new ...
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are characterized by 1H-NMR,13 C-NMR, FTIR, and TGA analysis. The corrosion effect of copolymer on the mild steel in 0.05M H2 SO 4solution was studied by potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) method. The % IE
... corrosion potential (Ecorr) and corrosion current density (Icorr) obtained by extrapolation of tafel lines are listed in Table 5 & 6. It is observed from the Table 5 &6 that Ecorr values increased significantly ...
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Nuclear Magnetic Resonance Studies of α Chymotrypsin I NMR Studies of the Binding of Small Molecule Inhibitors to α Chymotrypsin II NMR Studies of the Interaction of N TFA D Tryptophan Semicarbazide with α Chymotrypsin III ^(13)C NMR Studies of Methylated α Chymotrypsin IV NMR Studies of Acylated Chymotrypsins
... Since the primary effect on the environment seen by the m odifying methyl group is controlled by the active site region, a comparison of the chemical shifts observed in methylated trypsi[r] ...
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Assessment of milk fat content in fat blends by 13 C NMR spectroscopy analysis of butyrate
... Assessment of milk fat content in fat blends by 13C-NMR spectroscopy analysis of butyrate.. Raffaele Sacchi*1, Antonello Paduano2, Nicola Caporaso3,4, Gianluca Picariello5, Raffaele Roma[r] ...
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IR, 1H-NMR and13 C-NMR and mass spectrometry. The compounds have been evaluated for antibacterial activity against
... H-NMR, 13 C- NMR spectra as well as mixed melting points and elemental analysis confirmed the authenticity of the final products formed by using one-step and multi-step ...
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S4 were characterized through FT-IR, 1H NMR and13 C NMR. These synthesized compounds have
... All the reagents were obtained from commercial supplies and used without any further purification. Melting points were determined on an EZ-melt automated melting point apparatus without corrections. The reactions were ...
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Linking bacterial and eukaryotic microbiota to litter chemistry: Combining next generation sequencing with 13 C CPMAS NMR spectroscopy
... Our analysis, addressing the entire eukaryotic community, highlights a previously unnoticed but widespread occurrence of protists, mainly belonging to the Amebozoa and Cercozoa groups, in decomposed lit- ter. Protists ...
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H-NMR, 13 C-APT and Mass spectral data. The synthesized compounds were screened for in vitro antimicrobial
... The newly synthesized target compounds (7a-f), (8a-f) and (9a-f) were evaluated for their in vitro antibacterial activity against two Gram positive bacteria Staphylococcus aureus (MTCC 96) and Bacillus subtilis (MTCC ...
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