McDonagh A F,Phimister A,Boiadjier S E, et al.Dissociation constants of carboxylic acids by 13C-NMR in DMSO/water. Tetrahedron Letters . 1999A F McDonagh,A Phimister,S E Boiadjier. Dissociation constants of carboxylic acids by C-13-NMR in DMSO/water[J].Tetrahedron Letters,1998,(49):...
NMR 1H-shielding constants of hydrogen-bond donor reflect manifestation of the Pauli principle. J. Phys. Chem. Lett. 9, 3720–3724 (2018). Article CAS PubMed PubMed Central Google Scholar Rohlfing, C. M. M., Allen, L. C. & Ditchfield, R. Proton chemical shift tensors in hydrogen‐...
Fluid mosaic structure and lipid migration in ALIBC The UA grafting on the hydrogel surface was first confirmed. The 1H-NMR spectra showed signals at 5.78 and 2.34 ppm, indicating the copolymerization of UA and acrylamide (AM), although the ratio of UA in the copolymers was slightly lower than...
NNAP: 63.5%; 170 °C; IR (cm-1): 766, 1509, 1675, 3029 (Supplementary Figure (SF1); 1H NMR (400 MHz, DMSO-d6, ppm): 7.446–7.484 (t, 1H, 7.6 Hz), 7.566–7.603, (t, 7.4 Hz, 1H) 7.656–7.707 (m, 2 H) 7.910–7.931, (d, 8.4 Hz, 1H), 8.067–8.089 (d, 8.8 Hz,...
2. Analysis of water molecules resolved in the PSII crystal structure 3. Photosystem II and the need for channels 4. Water and O2 transport in PSII 5. Proton transport in PSII 6. Oxidation of and proton transfer from TyrD 7. Proton pathways at QB 8. Water: a controlled and a controllin...
Molecular weight: 616.71 CAS number: 2628213-67-0 Molecular formula: C36H36N6O4 Solubility: good in polar organic solvents (DMF, DMSO, alcohols), low in water Quality control: NMR 1H, HPLC-MS (95%) Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportatio...
. The mixture was stirred at room temperature for 6 h, and the resulting dark-brown, viscous solution was poured into methanol. The fibrous solid was washed with methanol and dried under a vacuum. The proton nuclear magnetic resonance (1H NMR) spectrum of p-TPBr is shown in Supplementary...
Nuclear magnetic resonance (NMR) spectroscopy is a powerful and popular technique for probing the molecular structures, dynamics and chemical properties. However the conventional NMR spectroscopy is bottlenecked by its low sensitivity. Dynamic nuclear po
Hydrogen spillover is the migration of activated hydrogen atoms from a metal particle onto the surface of catalyst support, which has made significant progress in heterogeneous catalysis. The phenomenon has been well researched on oxide supports, yet its
The reusability of methylaminopropyl active sites grafted on mesoporous amorphous silica, either with cooperative silanol groups or trimethylsilated, was assessed in the aldol reaction of acetone with 4-nitrobenzaldehyde. Raman, 13C NMR, and UV–Vis spectroscopy demonstrated the presence of stable enami...