Dimethylsulfoxide nuclear magnetic resonance

Abbreviations CCK, cholecystokinin RNase. ribonuclease G-protein, guanine nucleotide binding protein GPCR, G-protein-coupled receptor. SDS sodium dodecylsulfate, CTAH. hexadecyltrimethyl ammonium hydroxide DMPC. di-myristoylphosphatidylcholine DPPC, di-palmitoylphosphatldylcholine CMC, critical micellar concentration SUV, small unilamellar vesicles CD, circular dichroism NMR, nuclear magnetic resonance hs-DC, high sensitivity differential scanning calorimetry IR-ATR, infrared attenuated total reflection spectroscopy NOE, nuclear Overhauser effect MD, molecular dynamics DMSO, dimethylsulfoxide TFE, trifluoroethanol for abbreviations of peptides see tables land 2, and fig. 11. 

Fig. 3. Nuclear magnetic resonance spectrum of primidone in d -dimethylsulfoxide, tetramethylsilane reference, courtesy of Dr, G. R. Bedford (3).

Carbon-13 nuclear magnetic resonance Proton nuclear magnetic resonance Aromatic condensation polymers N,N-Dimethylacetamide Dimethylformamide Dimethylsulfoxide... 

Melting points were measured in open capillary tubes in a Scientific Glass Co. melting point apparatus. Melting points and boiling points are uncorrected. The nuclear magnetic resonance spectral data presented were obtained with a Varian model T-60 spectrophotometer using dimethylsulfoxide or tetramethylsilane as an internal standard. A Perkin-Elmer Model 137 Sodium Chloride spectrophotometer was used to record infrared spectra. 

Autschbach and co-workers have presented a method for a subsystem-based calculation of indirect nuclear spin-spin coupling tensors. This approach was based on the frozen-density embedding scheme within density-functional theory and was an extension of a previously reported subsystem-based approach for the calculation of nuclear magnetic resonance shielding tensors. The method was particularly useful for the inclusion of environmental effects in the calculation of nuclear spin-spin coupling constants. According to this method, the computationally expensive response calculation had to be performed only for the subsystem of interest. As an example, the authors have demonstrated the results for methylmercury halides which exhibited an exceptionally large shift of the V(Hg,C) upon coordination of dimethylsulfoxide solvent molecules. 

---