Pulsed Field Gradient NMR Spectroscopy: Applications in Determining the Pressure Viscosity Coefficient and Low-Temperature Flow Properties of Lubricant Base Oils

2003 ◽  
Vol 42 (7) ◽  
pp. 1522-1529 ◽  
Author(s):  
Brajendra K. Sharma ◽  
Arthur J. Stipanovic
Keyword(s):  
Nmr Spectroscopy ◽  
Low Temperature ◽  
Field Gradient ◽  
Viscosity Coefficient ◽  
Flow Properties ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Base Oils

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.

Probing Ionic Association on Metal Oxide Clusters by Pulsed Field Gradient NMR Spectroscopy: The Example of Sn12–Oxo Clusters

2004 ◽  
Vol 10 (7) ◽  
pp. 1747-1751 ◽  
Author(s):  
François Ribot ◽  
Virginie Escax ◽  
José C. Martins ◽  
Monique Biesemans ◽  
Laurent Ghys ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Metal Oxide ◽  
Field Gradient ◽  
Ionic Association ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Metal Oxide Clusters

Polymer additives mixture analysis using pulsed-field gradient NMR spectroscopy

1998 ◽  
Vol 36 (10) ◽  
pp. 755-760 ◽  
Author(s):  
Dimuthu A. Jayawickrama ◽  
Cynthia K. Larive ◽  
Elizabeth F. McCord ◽  
D. Christopher Roe
Keyword(s):  
Nmr Spectroscopy ◽  
Field Gradient ◽  
Polymer Additives ◽  
Mixture Analysis ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field
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