Solution-state nuclear magnetic resonance

Simpson, A. J, Song, G, Smith, E., Lam, B., Novotony, E. H., and Hayes, M. H. B. (2007). Unraveling the structural components of soil humin using solution state nuclear magnetic resonance spectroscopy. Environ. Sci. Technol. 41, 876-883. 

Holtman, K. M., Chang, H. M., and Kadla, J. F. (2004) Solution-state nuclear magnetic resonance study of the similarities between milled wood hgnin and cellulolytic enzyme lignin. J. Agr. Food Chem. 52(4), 720-726. 

R297 J. R. Bothe, E. N. Nikolova, C. D. Eichhorn, J. Chugh, A. L. Hansen and H. M. Al-Hashimi, Characterizing RNA Dynamics at Atomic Resolution Using Solution-State Nuclear Magnetic Resonance Spectroscopy , Nat. Methods, [online computer file], 2011, 8, 919. 

F. Lu and J. Ralph, Solution-State Nuclear Magnetic Resonance of Lig-nocellulosic Biomass , J. Biobased Mater. Bioenergy, 2011, 5, 169. 

TMS. Guidelines for the representation of pulse sequences for solution-state nuclear magnetic resonance spectroscopy - (lUPAC recommendations 2001) have also been published. ... 

Beryllium(II) is the smallest metal ion, r = 27 pm (2), and as a consequence forms predominantly tetrahedral complexes. Solution NMR (nuclear magnetic resonance) (59-61) and x-ray diffraction studies (62) show [Be(H20)4]2+ to be the solvated species in water. In the solid state, x-ray diffraction studies show [Be(H20)4]2+ to be tetrahedral (63), as do neutron diffraction (64), infrared, and Raman scattering spectroscopic studies (65). Beryllium(II) is the only tetrahedral metal ion for which a significant quantity of both solvent-exchange and ligand-substitution data are available, and accordingly it occupies a... 

A solution-state and solid-state nuclear magnetic resonance study of the complex and its separate components in both their neutral and ionized (TMP hydrochloride and SMZ sodium salt) forms was undertaken in order to elucidate the TMP-SMZ interactions. Inspection of the data for the complex in the solid state shows that the 13C chemical shifts are consistent with the ionic structure proposed by Nakai and coworkers105 (14). Stabilization of the complex is achieved by the resulting ionic interaction and by the formation of two intermolecular hydrogen bonds. 

Plasticisers are added to PVC to achieve flexibility and workability. The flexibility or softness is determined by the type of plasticiser and level used in relation to the PVC (phr). They also operate as an internal lubricant between the PVC molecules. Based on organic esters, e.g., phthalates, adipates, trimellitates, phosphates, etc., addition levels can be as low as 20 phr for semi-rigid to 100 phr for very flexible applications. The effect on the thermal stability significantly depends on the physical state of the PVC-plasticiser system (260). The relative amount of crystalline PVC in PVC/diethylhexyl phthalate has been identified on the basis of a combination of carbon-13 solution and solid state nuclear magnetic resonance (NMR) (361). 

Bechinger, B., Zasloff, M. and Opella, S. J. (1998) Structure and dynamics of the antibiotic peptide PGLa in membranes by solution and solid-state nuclear magnetic resonance spectroscopy. Biophysical Journal, 74, 981-987. 

Bleam, W.F. et al., A P solid-state nuclear magnetic resonance study of phosphate adsorption at the boehmite/aqueous solution interface, Langmuir, 7, 1702, 1991. 

The direct detection of radiation induced crosslinks in polyethylene has been a major goal of radiation chemists for many years. It was recognized as early as 1967 that solution 13c nuclear magnetic resonance (NMR) spectroscopy could be used to detect structures produced in polymers from ionizing radiation. Fischer and Langbein(l) reported the first direct detection of radiation induced crosslinks (H-links) in polyoxymethylene using 13c NMR. Bennett et al.(2) used 13c NMR to detect radiation induced crosslinks in n-alkanes irradiated in vacuum in the molten state. Bovey et al.(3) used this technique to identify both radiation induced H-links and long chain branches (Y-links) in n-alkanes... 

Table 2.8. Studies using solid-state or solution P nuclear magnetic resonance spectroscopy to ...

One technique that is becoming increasingly important for the characterization of materials is that of solid-state nuclear magnetic resonance (NMR) spectroscopy [144] the application of this methodology to topics of pharmaceutical interest has been amply demonstrated [112,145-146]. Although any nucleus that can be studied in the solution phase... 

Completely decoupled solution-phase and (2) solid-state nuclear magnetic resonance spectra obtained for benoxaprofen. The solution phase spectrum is compared with the sohd-state spectram of Form I. (The figure was adapted from data contained in Ref. 152.)... 

Several interesting review articles have been recently published focusing on the use of NMR methods to study peptide-lipid and small molecular weight molecule interactions in model and natural membranes. Maler as well as Kang and Li highlighted the unique possibilities of solution-state NMR to investigate the structure, dynamics and location of proteins and peptides in artificial bilayers and peptide-lipid interactions. On the other hand, Renault et reviewed recent advances in cellular solid-state nuclear magnetic resonance spectroscopy (SSNMR) to follow the structure, function, and molecular interactions of protein-lipid complexes in their cellular context and at atomic resolution. 

---