Manifesto for the routine use of NMR for the liquid product analysis of aqueous CO2 reduction: from comprehensive chemical shift data to formaldehyde quantification in water

2020 ◽  
Vol 49 (14) ◽  
pp. 4257-4265 ◽  
Author(s):  
Tamal Chatterjee ◽  
Etienne Boutin ◽  
Marc Robert
Keyword(s):  
Liquid Phase ◽  
Chemical Shift ◽  
Liquid Product ◽  
Co2 Reduction ◽  
Product Analysis ◽  
H Nmr ◽  
Reduction Processes ◽  
Products Analysis ◽  
Chemical Shift Data ◽  
Shift Data

In the quest for developing CO2 reduction processes, we show the efficiency and applicability of 1H NMR as powerful technique for liquid phase products analysis.

scholarly journals Revisit to 25R/25S Stereochemical Analysis of Spirostane-type Steroidal Sapogenins and Steroidal Saponins via 1H NMR Chemical Shift Data

2012 ◽  
Vol 7 (6) ◽  
pp. 1934578X1200700
Author(s):  
Pawan K. Agrawal ◽  
Torsten Burkholz ◽  
Claus Jacob
Keyword(s):  
Chemical Shift ◽  
Chemical Shifts ◽  
Steroidal Saponins ◽  
Methyl Group ◽  
H Nmr ◽  
Stereochemical Analysis ◽  
Chemical Shift Data ◽  
The Difference ◽  
Shift Data ◽  
1H Nmr Chemical Shift

An approach based on the difference (Δab = δa – δb) between 1H NMR chemical shifts (δa, δb) of the geminal protons of oxymethylene (H2-26) (Δab = <0.2 for 25 R; Δab = >0.5 for 25 S) is proposed for ascertaining 25 R/25 S orientation of the 27-methyl group for (22 R)-spirostane-type steroidal sapogenins and steroidal saponins. These studies suggested the 25 R-orientation of the 27-Me group for the steroidal saponins isolated by Temraz et al. from Tribulus alatus.

Chemical‐Shift Data for Water and Aqueous Solutions

1966 ◽  
Vol 45 (9) ◽  
pp. 3296-3298 ◽  
Author(s):  
Heinrich H. Rüterjans ◽  
Harold A. Scheraga
Keyword(s):  
Chemical Shift ◽  
Aqueous Solutions ◽  
Chemical Shift Data ◽  
Shift Data

scholarly journals Bayesian inference of protein structure from chemical shift data

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e861 ◽  
Author(s):  
Lars A. Bratholm ◽  
Anders S. Christensen ◽  
Thomas Hamelryck ◽  
Jan H. Jensen
Keyword(s):  
Protein Structure ◽  
Bayesian Inference ◽  
Chemical Shift ◽  
Chemical Shift Data ◽  
Shift Data

Complex fluoroanions in solution. XI. Complexes of silicon, germanium, and titanium tetrafluorides with simple anions

1980 ◽  
Vol 58 (14) ◽  
pp. 1407-1411 ◽  
Author(s):  
S. Brownstein
Keyword(s):  
Magnetic Resonance ◽  
Chemical Shift ◽  
Silicon Germanium ◽  
Chemical Shift Data ◽  
Shift Data

A fluorine-bridged silicon fluoroanion and many hexa-co-ordinate germanium and titanium fluoroanions have been identified in solution via fluorine magnetic resonance. A generalized shceme is used to correlate all fluorine chemical shift data for hexa-coordinate fluorine containing species.

The chemistry of pyrrolic compounds. LV. 13C chemical shift data for the isomeric protoporphyrins

1984 ◽  
Vol 37 (2) ◽  
pp. 335 ◽  
Author(s):  
RJ Abraham ◽  
PS Clezy ◽  
Lv Thuc
Keyword(s):  
Chemical Shift ◽  
Side Chain ◽  
Methine Carbon ◽  
Chemical Shift Data ◽  
13C Chemical Shift ◽  
Derivatives Of ◽  
Shift Data

The 13C n.m.r, spectra of the 15 isomeric protoporphyrin dimethyl esters have been determined. Measurements were made on the zinc chelate derivatives of the porphyrins in the presence of pyrrolidine and assignments are given for the side chain and methine carbon atoms.

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