Periodic ab initio calculation of nuclear quadrupole parameters as an assignment tool in solid-state NMR spectroscopy: applications to 23Na NMR spectra of crystalline materials

2005 ◽  
Vol 27 (3) ◽  
pp. 155-164 ◽  
Author(s):  
Clive Johnson ◽  
Elaine A. Moore ◽  
Michael Mortimer
2016 ◽  
Vol 52 (45) ◽  
pp. 7186-7204 ◽  
Author(s):  
Sharon E. Ashbrook ◽  
David McKay

DFT calculations are an important tool in assigning and interpreting NMR spectra of solids: we discuss recent developments and their future potential in the context of NMR crystallography.


RSC Advances ◽  
2018 ◽  
Vol 8 (13) ◽  
pp. 7089-7101 ◽  
Author(s):  
Arantxa Fernandes ◽  
Robert F. Moran ◽  
Scott Sneddon ◽  
Daniel M. Dawson ◽  
David McKay ◽  
...  

Investigation of the conditions required for quantitative isotopic enrichment and the acquisition of quantitative 17O NMR spectra of ceramic oxides.


2017 ◽  
Vol 46 (11) ◽  
pp. 3535-3540 ◽  
Author(s):  
Takeshi Kobayashi ◽  
Frédéric A. Perras ◽  
Anna Murphy ◽  
Yao Yao ◽  
Jaclyn Catalano ◽  
...  

Dynamic nuclear polarization (DNP) is used to enhance the (ultra)wideline 207Pb solid-state NMR spectra of lead compounds of relevance in the preservation of cultural heritage objects.


2019 ◽  
Vol 141 (7) ◽  
pp. 3024-3036 ◽  
Author(s):  
David McKay ◽  
Robert F. Moran ◽  
Daniel M. Dawson ◽  
John M. Griffin ◽  
Simone Sturniolo ◽  
...  

2004 ◽  
Vol 852 ◽  
Author(s):  
Eleonora Del Federico ◽  
Wolfgang Schoefberger ◽  
Rajeev Kumar ◽  
Wen Ling ◽  
Sofia M. Kapetanaki ◽  
...  

ABSTRACTWe report on a study of ultramarine pigments via Colorimetry, resonance Raman, and 27Al, 29Si solid-state NMR spectroscopy. NMR parameters are shown to correlate well with the intensities of Raman signals corresponding to the chromophores S3−. and S2−.. Further, a correlation is established between the colorimetric parameters L* (lightness) and C* (chromaticity) and the paramagnetic shift in NMR spectra for both 27Al and 29Si. The parameter h (hue) appeared not to vary over the range of paramagnetic host concentrations studied. Preliminary results on faded pigments in both acidic and basic media show that the concentration of diamagnetic guest molecules in the sodalite lattice rises, and some of the paramagnetic species are replaced.


Sign in / Sign up

Export Citation Format

Share Document