scholarly journals Dynamic nuclear polarisation enhanced14N overtone MAS NMR spectroscopy

2014 ◽  
Vol 16 (25) ◽  
pp. 12890-12899 ◽  
Author(s):  
Aaron J. Rossini ◽  
Lyndon Emsley ◽  
Luke A. O'Dell
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Nmr Spectra ◽  
Signal Enhancement ◽  
Mas Nmr ◽  
Natural Abundance ◽  
Dynamic Nuclear Polarisation ◽  
Nuclear Polarisation

Dynamic nuclear polarisation has been used to obtain solid-state14N overtone NMR spectra with signal enhancement levels of over two orders of magnitude, including natural abundance C–N and H–N correlation spectra.

New opportunities in acquisition and analysis of natural abundance complex solid-state 33S MAS NMR spectra: (CH3NH3)2WS4

2009 ◽  
Vol 11 (32) ◽  
pp. 6981 ◽  
Author(s):  
Hans J. Jakobsen ◽  
Henrik Bildsøe ◽  
Jørgen Skibsted ◽  
Michael Brorson ◽  
Bikshandarkoil R. Srinivasan ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
Natural Abundance

Solid-State 29Si VACP/MAS NMR Studies of Silicon-Accumulating Plants: Structural Characterization of Biosilica Deposits

2000 ◽  
Vol 55 (6) ◽  
pp. 459-461 ◽  
Author(s):  
Rüdiger Bertermann ◽  
Reinhold Tacke
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
Typical Pattern ◽  
Nmr Studies ◽  
Polysilicic Acid ◽  
Freeze Dried ◽  
Pattern Characteristic

A series of silicon-accumulating plants [different Equisetum (horse tail) species, Echium vulgare, and Symphytum officinale] were studied by solid-state 29Si NMR experiments. For this purpose, selected parts of these plants were freeze-dried and then investigated by solid-state 29Si VACP/MAS NMR spectroscopy. The 29Si NMR spectra of these plants are quite similar and exhibit the typical pattern characteristic of polysilicic acid (amorphous silica).

scholarly journals Oxygen-17 dynamic nuclear polarisation enhanced solid-state NMR spectroscopy at 18.8 T

2017 ◽  
Vol 53 (17) ◽  
pp. 2563-2566 ◽  
Author(s):  
Nick J. Brownbill ◽  
David Gajan ◽  
Anne Lesage ◽  
Lyndon Emsley ◽  
Frédéric Blanc
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Dynamic Nuclear Polarisation ◽  
Solid State Nmr Spectroscopy ◽  
Nuclear Polarisation

We report 17O dynamic nuclear polarisation (DNP) enhanced solid-state NMR experiments at 18.8 T.

Natural Abundance Nitrogen-15 NMR in Thermotropic Liquid Crystals With Cyano-Group

2017 ◽  
Vol 231 (4) ◽  
Author(s):  
Lukas Jackalin ◽  
Sergey V. Dvinskikh
Keyword(s):  
Liquid Crystals ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Nmr Spectra ◽  
Cyano Group ◽  
Natural Abundance ◽  
Spin Interactions ◽  
Thermotropic Liquid Crystals ◽  
Standard Solution ◽  
Power Standard

AbstractWe present natural abundance nitrogen-15 (NAN15) NMR spectroscopy in thermotropic liquid crystals. It is demonstrated that high resolution NAN15 NMR spectra in mesophases can be accurately recorded in non-spinning samples with a high orientational molecular order and strong anisotropic spin interactions. In this technique, due to low demand on radio-frequency decoupling power, standard solution-state probes can be used, which generally provide superior sensitivity and spectroscopic resolution in comparison to solid-state probes. We show that

scholarly journals Ultrafast 2D 1H-1H NMR spectroscopy of DNP-hyperpolarised substrates for the analysis of mixtures

2021 ◽  
Author(s):  
Kawarpal Singh ◽  
Corentin Jacquemmoz ◽  
Patrick Giraudeau ◽  
Lucio Frydman ◽  
Jean-Nicolas Dumez
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Nmr Spectra ◽  
2D Nmr ◽  
Multiple Quantum ◽  
Dynamic Nuclear Polarisation ◽  
Nuclear Polarisation ◽  
2D Nmr Spectra

We show that TOCSY and multiple-quantum (MQ) 2D NMR spectra can be obtained for mixtures of substrates hyperpolarised by dissolution dynamic nuclear polarisation (D-DNP). This is achieved by combining optimised...

Sensitivity enhancement in natural-abundance solid-state 33S MAS NMR spectroscopy employing adiabatic inversion pulses to the satellite transitions

2008 ◽  
Vol 190 (2) ◽  
pp. 316-326 ◽  
Author(s):  
Michael Ryan Hansen ◽  
Michael Brorson ◽  
Henrik Bildsøe ◽  
Jørgen Skibsted ◽  
Hans J. Jakobsen
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Sensitivity Enhancement ◽  
Mas Nmr ◽  
Natural Abundance ◽  
Adiabatic Inversion ◽  
Inversion Pulses

Investigating Sorption on Iron−Oxyhydroxide Soil Minerals by Solid-State NMR Spectroscopy:  A6Li MAS NMR Study of Adsorption and Absorption on Goethite

2005 ◽  
Vol 109 (39) ◽  
pp. 18310-18315 ◽  
Author(s):  
Ulla Gro Nielsen ◽  
Younkee Paik ◽  
Keinia Julmis ◽  
Martin A. A. Schoonen ◽  
Richard J. Reeder ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Mas Nmr ◽  
Iron Oxyhydroxide ◽  
Soil Minerals ◽  
Solid State Nmr Spectroscopy ◽  
Nmr Study
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