Showing 21 - 40 results of 159 for search '"NMR spectroscopy"', query time: 0.05s Refine Results
  1. 21
  2. 22
  3. 23
  4. 24
  5. 25
  6. 26

    Synthesis and Spatial Structure of 3-Phenylacrylic Acid Octahydroquinolizin-1-Ylmethyl Ester and 2-(Octahydroquinolizin-1-Ylmethyl)Isoindole-1,3-Dione by Zh.S. Nurmaganbetov, O.A. Nurkenov, S.D. Fazylov, D.M. Turdybekov, Ye.V. Minayeva, G. Khabdolda, A.M. Ibraybekova, Zh.S. Tilla, K.M. Turdybekov

    Published 2024-10-01
    Subjects: “…3-Phenylacrylic acid octahydroquinolizin-1-ylmethyl ester, 2-(octahydroquinolizin-1-ylmethyl)isoindole-1,3-dione, NMR spectroscopy, X-ray analysis, conformational analysis…”
    Get full text
    Article
  7. 27

    One-Pot Synthesis, X-Ray Diffraction and MAS NMR Spectroscopic Study of Gallosilicate Nitrate Cancrinite Na8[GaSiO4]6(NO3)4(H2O)6 by Ashok V. Borhade, Sanjay G. Wakchaure

    Published 2010-01-01
    “…The results by MAS NMR spectroscopy confirmed the alternating Si, Ga ordering of the gallosilicate framework for a Si/Ga ratio of 1.0. …”
    Get full text
    Article
  8. 28

    Coordination Polymer: Synthesis, Spectral Characterization and Thermal Behaviour of Starch-Urea Based Biodegradable Polymer and Its Polymer Metal Complexes by Ashraf Malik, Shadma Parveen, Tansir Ahamad, Saad M. Alshehri, Prabal Kumar Singh, Nahid Nishat

    Published 2010-01-01
    “…All the synthesized polymeric compounds were characterized by Fourier transform-infrared spectroscopy (FT-IR), H-NMR spectroscopy, C-NMR spectroscopy, UV-visible spectra, magnetic moment measurements, differential scanning calorimeter (DSC), and thermogravimetric analysis (TGA). …”
    Get full text
    Article
  9. 29

    Synthesis and Photophysical and Electrochemical Properties of Functionalized Mono-, Bis-, and Trisanthracenyl Bridged Ru(II) Bis(2,2′:6′,2″-terpyridine) Charge Transfer Complexes... by Adewale O. Adeloye, Peter A. Ajibade

    Published 2014-01-01
    “…The complexes formulated as bis-4′-(9-monoanthracenyl-10-(2-methyl-2-butenoic acid) terpyridyl) ruthenium(II) bis(hexafluorophosphate) (RBT1), bis-4′-(9-dianthracenyl-10-(2-methyl-2-butenoic acid) terpyridyl) ruthenium(II) bis(hexafluorophosphate) (RBT2), and bis-4′-(9-trianthracenyl-10-(2-methyl-2-butenoic acid) terpyridyl) ruthenium(II) bis(hexafluorophosphate) (RBT3) were characterized by elemental analysis, FT-IR, UV-Vis, photoluminescence, 1H and 13C NMR spectroscopy, and electrochemical techniques by elemental analysis, FT-IR, UV-Vis, photoluminescence, 1H and 13C NMR spectroscopy, and electrochemical techniques. …”
    Get full text
    Article
  10. 30

    Selective Americium Separation: New Insights into the Complexation of Trivalent f-Elements with SO3-Ph-BTBP by Sauerwein Fynn S., Sittel Thomas, Geist Andreas, Panak Petra J., Wilden Andreas, Modolo Giuseppe

    Published 2025-01-01
    “…Fundamental extraction mechanism studies revealed an unusual extraction behavior of heavy Ln(III) and Y(III), which provided the motivation to investigate their complexation with SO3-Ph-BTBP using nuclear magnetic resonance (NMR) spectroscopy and solvent extraction. NMR spectroscopy indicated the formation of the same SO3-Ph-BTBP complex with Lu(III) in 10-3 mol L-1, 1 mol L-1 and 3 mol L-1 DNO3 solution. …”
    Get full text
    Article
  11. 31

    Determination of the degree of sulfonation in cross-linked and non-cross-linked Poly(ether ether ketone) using different analytical techniques by Abdul G. Al Lafi, Mohammed S. Rihawy, Abdul W. Allaf, Ali Alzier, Reem Hasan

    Published 2025-01-01
    “…In contrast, molecular spectroscopic methods particularly UV and 1H NMR spectroscopy, are more efficient for soluble samples. 1H NMR spectroscopy is especially accurate, though it necessities additional steps, such as determining T1 relaxation times to ensure complete magnetization recovery. …”
    Get full text
    Article
  12. 32

    Photochromism of indolino-benzopyrans studied by NMR and UV-visible spectroscopy

    Published 2006-01-01
    “…The structures of photomerocyanines elucidated by NMR spectroscopy and spectrokinetic data (<mml:math> <mml:msub> <mml:mi>&#x03BB;</mml:mi> <mml:mrow> <mml:mi>max</mml:mi><mml:mo>&#x2061;</mml:mo> </mml:mrow> </mml:msub> </mml:math> of colored form, colorability, and rate constant of bleaching) obtained by UV-visible spectroscopy are reported.…”
    Get full text
    Article
  13. 33

    Evaluation of the Antioxidant and Cytotoxic Activities on Cancer Cell Line of Extracts of Parasitic Plants Harvested in Tunisia by Imen Ben Attia, Paolo Zucca, Flaminia Cesare Marincola, Mariella Nieddu, Alessandra Piras, Antonella Rosa, Antonio Rescigno, Mohamed Chaieb

    Published 2020-06-01
    “…The metabolic profiles of aqueous extracts were studied by 1 H NMR spectroscopy. The oils extracted using hexane as solvent were analyzed by GC-FID and HPLC-DAD to characterize the fatty acid profile. …”
    Get full text
    Article
  14. 34

    Prediction of Four Kinds of Simple Supersecondary Structures in Protein by Using Chemical Shifts by Feng Yonge

    Published 2014-01-01
    “…In this study, a novel model is presented to predict protein supersecondary structure by use of chemical shifts (CSs) information derived from nuclear magnetic resonance (NMR) spectroscopy. Using these CSs as inputs of the method of quadratic discriminant analysis (QD), we achieve the overall prediction accuracy of 77.3%, which is competitive with the same method for predicting supersecondary structures from amino acid compositions in threefold cross-validation. …”
    Get full text
    Article
  15. 35

    Design, Synthesis, and In Vitro Antioxidant Activity of 1,3,5-Trisubstituted-2-pyrazolines Derivatives by P. C. Jagadish, Neeraj Soni, Amita Verma

    Published 2013-01-01
    “…All the synthesised compounds were purified by recrystallisation, characterized on the basis of UV, IR, and NMR spectroscopy, and further supported by mass spectroscopy. …”
    Get full text
    Article
  16. 36

    Synthesis, Characterization and Copolymerization of N-(phenylamino)maleimide with MMA by B. L. Hiran, S. N. Paliwal, Jyoti Choudhary, P. R. Choudhary

    Published 2007-01-01
    “…Resulting copolymer was characterized by density measurement, intrinsic viscosity, solubility, FT-IR & 1H NMR spectroscopy. Effect of the solvent and time on copolymer yield was also investigated. …”
    Get full text
    Article
  17. 37

    NMR and MD Simulations of Non-Ionic Surfactants by Gerd Buntkowsky, Markus Hoffmann

    Published 2025-01-01
    “…In recent years, the combination of molecular dynamics (MD) simulations with multinuclear solid-state NMR spectroscopy and calorimetric techniques has evolved into the most powerful tool for their investigation. …”
    Get full text
    Article
  18. 38

    A New 3D Coordination Polymer of Bismuth with Nicotinic Acid N-Oxide by Farzin Marandi, Ingo Pantenburg, Gerd Meyer

    Published 2013-01-01
    “…The new three-dimensional coordination polymer {[Bi(NNO)2(NO3)]·1.5H2O}n (1, NNO− = nicotinate N-oxide) was synthesized and characterized by elemental analysis, IR and 1H-NMR spectroscopy, as well as single-crystal X-ray diffraction analysis. 1 crystallizes in the monoclinic space group C2/c. …”
    Get full text
    Article
  19. 39

    NEW SELENATO TRIPHENYLTIN (IV) AND TRIMETHYLTIN (IV) DERIVATIVES: SYNTHESIS, INFRARED AND NMR STUDIES by WALY DIALLO, LIBASSE DIOP

    Published 2017-06-01
    “… Five derivatives of general formulae [cation] [SeO4SnR3] (R = Ph, Me) have been studied by infrared (IR) and nuclear magnetic resonance (NMR) spectroscopy. The suggested structures are infinite chains or oligomers, the environment around the tin centre being trans trigonal bipyramidal, the phenyl and methyl substituants occupying equatorial positions, the selenate anion behaving as a bridging bidentate ligand and occupying the apical positions. …”
    Get full text
    Article
  20. 40

    1H NMR Chemical Shifts of Adsorbed Molecules on the Carbon Surface by V.V. Turov, R. Leboda

    Published 1998-11-01
    “…The chemical shifts of water and organic molecules adsorbed on to different types of carbon surfaces (exfoliated graphite, graphite oxide, intercalated graphite, graphitized and non-graphitized activated carbons, carbon black, carbosils) were studied by 1 H NMR spectroscopy. Values of the chemical shift were found to differ in accordance with the structure of the active sites. …”
    Get full text
    Article