Pulsed field gradient multiple-quantum MAS NMR spectroscopy of half-integer spin quadrupolar nuclei

1997 ◽  
Vol 281 (1-3) ◽  
pp. 44-48 ◽  
Author(s):  
C.A Fyfe ◽  
J Skibsted ◽  
H Grondey ◽  
H Meyer zu Altenschildesche
Keyword(s):  
Nmr Spectroscopy ◽  
Field Gradient ◽  
Mas Nmr ◽  
Quadrupolar Nuclei ◽  
Multiple Quantum ◽  
Pulsed Field ◽  
Integer Spin ◽  
Half Integer

Sensitivity-enhanced multiple-quantum MAS NMR for half-integer spin quadrupolar nuclei using WURST-amplitude shaped pulses

2020 ◽  
Vol 321 ◽  
pp. 106873
Author(s):  
Jonas Koppe ◽  
Robert Knitsch ◽  
Sebastian Wegner ◽  
Michael Ryan Hansen
Keyword(s):  
Mas Nmr ◽  
Quadrupolar Nuclei ◽  
Multiple Quantum ◽  
Integer Spin ◽  
Half Integer

High-resolution multiple quantum MAS NMR spectroscopy of half-integer quadrupolar nuclei

1996 ◽  
Vol 249 (3-4) ◽  
pp. 210-217 ◽  
Author(s):  
Gang Wu ◽  
David Rovnyank ◽  
Boqin Sun ◽  
Robert G. Griffin
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
Mas Nmr ◽  
Quadrupolar Nuclei ◽  
Multiple Quantum ◽  
Half Integer

Sensitivity-Enhanced Multiple-Quantum MAS NMR of Half-Integer Quadrupolar Nuclei†

1997 ◽  
Vol 119 (38) ◽  
pp. 9055-9056 ◽  
Author(s):  
T. Vosegaard ◽  
F. H. Larsen ◽  
H. J. Jakobsen ◽  
P. D. Ellis ◽  
N. C. Nielsen
Keyword(s):  
Mas Nmr ◽  
Quadrupolar Nuclei ◽  
Multiple Quantum ◽  
Half Integer

Controlling Gas Selectivity in Molecular Porous Liquids by Tuning the Cage Window Size

2019 ◽  
Author(s):  
Benjamin Egleston ◽  
Konstantin V. Luzyanin ◽  
Michael C. Brand ◽  
Rob Clowes ◽  
Michael E. Briggs ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Chemical Synthesis ◽  
Field Gradient ◽  
Window Size ◽  
Standard Approach ◽  
Porous Solids ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Cage Molecules ◽  
Gas Selectivity

Control of pore window size is the standard approach for tuning gas selectivity in porous solids. Here, we present the first example where this is translated into a molecular porous liquid formed from organic cage molecules. Reduction of the cage window size by chemical synthesis switches the selectivity from Xe-selective to CH<sub>4</sub>-selective, which is understood using <sup>129</sup>Xe, <sup>1</sup>H, and pulsed-field gradient NMR spectroscopy.

Controlling Gas Selectivity in Molecular Porous Liquids by Tuning the Cage Window Size

2019 ◽  
Author(s):  
Benjamin Egleston ◽  
Konstantin V. Luzyanin ◽  
Michael C. Brand ◽  
Rob Clowes ◽  
Michael E. Briggs ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Chemical Synthesis ◽  
Field Gradient ◽  
Window Size ◽  
Standard Approach ◽  
Porous Solids ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Cage Molecules ◽  
Gas Selectivity

Control of pore window size is the standard approach for tuning gas selectivity in porous solids. Here, we present the first example where this is translated into a molecular porous liquid formed from organic cage molecules. Reduction of the cage window size by chemical synthesis switches the selectivity from Xe-selective to CH<sub>4</sub>-selective, which is understood using <sup>129</sup>Xe, <sup>1</sup>H, and pulsed-field gradient NMR spectroscopy.

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