Determination of the π-Accepting Properties of Borate-, Aluminate-, and Gallate-Functionalized N-Heterocyclic Carbenes by 77Se NMR Spectroscopy

2021 ◽  
Author(s):  
Luong Phong Ho ◽  
Marvin Koneczny ◽  
Thomas Bannenberg ◽  
Matthias Tamm
Keyword(s):  
Nmr Spectroscopy ◽  
Heterocyclic Carbenes ◽  
77Se Nmr Spectroscopy

Site-Specific pKa Determination of Selenocysteine Residues in Selenovasopressin by Using 77Se NMR Spectroscopy

2011 ◽  
Vol 50 (50) ◽  
pp. 11952-11955 ◽  
Author(s):  
Mehdi Mobli ◽  
David Morgenstern ◽  
Glenn F. King ◽  
Paul F. Alewood ◽  
Markus Muttenthaler
Keyword(s):  
Nmr Spectroscopy ◽  
Site Specific ◽  
Pka Determination ◽  
77Se Nmr Spectroscopy

Simple enantiomeric excess determination of alcohols using chiral selones and 77Se NMR spectroscopy

1995 ◽  
Vol 6 (4) ◽  
pp. 833-834 ◽  
Author(s):  
Ruilian Wu ◽  
Jerome D. Odom ◽  
R. Bruce Dunlap ◽  
Louis A. Silks
Keyword(s):  
Nmr Spectroscopy ◽  
Enantiomeric Excess ◽  
77Se Nmr Spectroscopy

scholarly journals Synthesis of Silver (I) Complexes of Iminoalkyl Functionalised -Heterocyclic Carbenes

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Neil A. Williams ◽  
Mahboub Merzouk ◽  
Peter B. Hitchcock
Keyword(s):  
Nmr Spectroscopy ◽  
Structure Determination ◽  
Good Yield ◽  
Heterocyclic Carbenes ◽  
Silver Bromide ◽  
X Ray Diffraction ◽  
X Ray ◽  
Diffraction Structure ◽  
Monodentate Coordination

A range of silver iminoalkyl imidazol-2-ylidene complexes have been isolated in good yield (50%–85%) and characterised by and NMR spectroscopy. A single crystal X-ray diffraction structure determination of 1--(benzylhydrylidene-amino)-ethyl-benzyl imidazol-2-ylidene silver bromide indicated monodentate coordination of the ligand.

Site-Specific pKa Determination of Selenocysteine Residues in Selenovasopressin by Using 77Se NMR Spectroscopy

2011 ◽  
Vol 123 (50) ◽  
pp. 12158-12161 ◽  
Author(s):  
Mehdi Mobli ◽  
David Morgenstern ◽  
Glenn F. King ◽  
Paul F. Alewood ◽  
Markus Muttenthaler
Keyword(s):  
Nmr Spectroscopy ◽  
Site Specific ◽  
Pka Determination ◽  
77Se Nmr Spectroscopy

Simple enantiomeric excess determination of amines using chiral selones: unusual N–H⋯Se bonding detected by HMQC1H/77Se NMR spectroscopy

1996 ◽  
pp. 1125-1126 ◽  
Author(s):  
Ruilian Wu ◽  
Griselda Hernández ◽  
Jerome D. Odom ◽  
R. Bruce Dunlap ◽  
Louis A. Silks
Keyword(s):  
Nmr Spectroscopy ◽  
Enantiomeric Excess ◽  
77Se Nmr Spectroscopy

Quantitative Determination of Krill Oil Composition by ATR-FTIR, NIR, and 31P NMR Spectroscopy

2020 ◽  
Author(s):  
Ashraf Ismail ◽  
Sanaz Molaye Moghaddam ◽  
Jean-Pierre MetabanzoulouSarya Aziz ◽  
Jacqueline Sedman ◽  
Mazen Bahadi
Keyword(s):  
Nmr Spectroscopy ◽  
Quantitative Determination ◽  
31P Nmr ◽  
31P Nmr Spectroscopy ◽  
Krill Oil ◽  
Oil Composition

Determination of alcohols in mixtures by 19F NMR spectroscopy using hexefluoroacetone reagent

1982 ◽  
Vol 47 (7) ◽  
pp. 1973-1978 ◽  
Author(s):  
Jiří Karhan ◽  
Zbyněk Ksandr ◽  
Jiřina Vlková ◽  
Věra Špatná
Keyword(s):  
Standard Deviation ◽  
Nmr Spectroscopy ◽  
Standard Method ◽  
Internal Standard ◽  
Internal Standard Method ◽  
Concentration Region ◽  
Experimental Conditions ◽  
Curve Method ◽  
Sample Preparation Procedure

The determination of alcohols by 19F NMR spectroscopy making use of their reaction with hexafluoroacetone giving rise to hemiacetals was studied on butanols. The calibration curve method and the internal standard method were used and the results were mutually compared. The effects of some experimental conditions, viz. the sample preparation procedure, concentration, spectrometer setting, and electronic integration, were investigated; the conditions, particularly the concentrations, proved to have a statistically significant effect on the results of determination. For the internal standard method, the standard deviation was 0.061 in the concentration region 0.032-0.74 mol l-1. The method was applied to a determination of alcohols in the distillation residue from an oxo synthesis.

Determination of Tautomeric Preference of Fenobam in Solution by High Resolution NMR Spectroscopy

2020 ◽  
Author(s):  
Xuming Sha ◽  
Shaodong Chen ◽  
Xiaojing Zheng ◽  
Xin Ye ◽  
Hailu Zhang ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
High Resolution Nmr
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