High resolution in heteronuclear1H-13C NMR experiments by optimizing spectral aliasing with one-dimensional carbon data

2002 ◽  
Vol 41 (1) ◽  
pp. 3-17 ◽  
Author(s):  
Damien Jeannerat
Keyword(s):  
High Resolution ◽  
13C Nmr ◽  
One Dimensional

Combined High-Resolution Solid-State 1H/13C NMR Spectroscopy and 1H NMR Relaxometry for the Characterization of Kerogen Thermal Maturation

2020 ◽  
Author(s):  
Francesco Panattoni ◽  
Jonathan Mitchell ◽  
Edmund J. Fordham ◽  
Ravinath Kausik ◽  
Clare P. Grey ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
High Resolution ◽  
1H Nmr ◽  
13C Nmr ◽  
13C Nmr Spectroscopy ◽  
Thermal Maturation ◽  
Nmr Relaxometry ◽  
1H Nmr Relaxometry

scholarly journals Haloaldehyde Polymers LXII. High Resolution Solid State 13C NMR Spectra of Chloral and Bromal Polymers

1994 ◽  
Vol 26 (3) ◽  
pp. 267-271 ◽  
Author(s):  
Koichi Hatada ◽  
Koichi Ute ◽  
Hiroshi Okuda ◽  
F W Hein Kruger ◽  
Otto Vogl
Keyword(s):  
Solid State ◽  
High Resolution ◽  
13C Nmr ◽  
Nmr Spectra ◽  
13C Nmr Spectra ◽  
Solid State 13C Nmr

Structural study of poly(vinyl alcohol) in the gel state by high-resolution solid-state 13C NMR spectroscopy

1995 ◽  
Vol 28 (19) ◽  
pp. 6677-6679 ◽  
Author(s):  
Masatoshi Kobayashi ◽  
Isao Ando ◽  
Takahiro Ishii ◽  
Shigetoshi Amiya
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
High Resolution ◽  
Structural Study ◽  
13C Nmr ◽  
Vinyl Alcohol ◽  
13C Nmr Spectroscopy ◽  
Poly Vinyl Alcohol ◽  
Solid State 13C Nmr

A Novel Method for 13C-NMR Spectroscopy of Polymer in Emulsion: Quantitative Analysis of Microstructure of Crosslinked Polybutadiene in Latex

1999 ◽  
Vol 72 (5) ◽  
pp. 844-853 ◽  
Author(s):  
Seiichi Kawahara ◽  
Saori Bushimata ◽  
Takashi Sugiyama ◽  
Chihiro Hashimoto ◽  
Yasuyuki Tanaka
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
13C Nmr ◽  
Lattice Relaxation ◽  
13C Nmr Spectroscopy ◽  
Lattice Relaxation Time ◽  
Solid Sample ◽  
Spin Lattice Relaxation ◽  
High Resolution Spectrum ◽  
C Nmr

Abstract A novel analytical method using high resolution 13C-NMR spectroscopy to study polymer latex, which is a heterogeneous system comprising polymer dispersoid and water, is described. The appropriate concentrations of surfactant and dried rubber content of a polybutadiene latex, which give the best spectrum, were found to be 1 w/v % and 10%, respectively. The half-widths of resonance peaks for the latex sample were almost identical to the half-widths obtained in solution, which were about one-third the width of those obtained using a solid sample of either a crosslinked or soluble polybutadiene. Nevertheless, the signal to noise ratio for the latex sample was slightly smaller than that for the solution sample. The values of spin-lattice relaxation time, T1, for the latex sample were similar to those for the solid sample. These demonstrate that the latex state C-NMR spectroscopy will be a powerful technique for structural characterization of crosslinked gels in the dispersoid because it gives a high resolution spectrum comparable to solution state spectroscopy, showing short T1 values corresponding to those for solid state C-NMR spectroscopy. High resolution latex state 13C-NMR spectroscopy was used to determine the concentrations of the various isomers of the polybutadiene in the dispersoid.

scholarly journals 13C NMR investigation of low-temperature states in one-dimensional organic cation radical salt, (TMTTF)2SbF6, under high pressures

2010 ◽  
Vol 215 ◽  
pp. 012063 ◽  
Author(s):  
Fumitatsu Iwase ◽  
Ko Furukawa ◽  
Toshikazu Nakamura
Keyword(s):  
Low Temperature ◽  
13C Nmr ◽  
High Pressures ◽  
Organic Cation ◽  
Cation Radical ◽  
One Dimensional ◽  
Radical Salt

High-Resolution Fully Automatic Light Field Image Acquisition System Using One-Dimensional Camera Array

2021 ◽  
Author(s):  
Munkh-Uchral Erdenebat ◽  
Ki-Chul Kwon ◽  
Nyamsuren Darkhanbaatar ◽  
Jin Kyu Jung ◽  
Sang-Keun Gil ◽  
...  
Keyword(s):  
High Resolution ◽  
Light Field ◽  
Image Acquisition ◽  
Acquisition System ◽  
One Dimensional ◽  
Camera Array ◽  
Image Acquisition System ◽  
Fully Automatic ◽  
Light Field Image

scholarly journals One-Dimensional 13C NMR Is a Simple and Highly Quantitative Method for Enantiodiscrimination

Molecules ◽  
2018 ◽  
Vol 23 (7) ◽  
pp. 1785 ◽  
Author(s):  
Peter Lankhorst ◽  
Jozef van Rijn ◽  
Alexander Duchateau
Keyword(s):  
1H Nmr ◽  
13C Nmr ◽  
Quantitative Method ◽  
Enantiomeric Excess ◽  
Nmr Spectrum ◽  
One Dimensional ◽  
Nmr Method ◽  
Relative Standard ◽  
Excess Value ◽  
Chiral Solvating Agent

The discrimination of enantiomers of mandelonitrile by means of 1D 13C NMR and with the aid of the chiral solvating agent (S)-(+)-1-(9-anthryl)-2,2,2-trifluoroethanol (TFAE) is presented. 1H NMR fails for this specific compound because proton signals either overlap with the signals of the chiral solvating agent or do not show separation between the (S)-enantiomer and the (R)-enantiomer. The 13C NMR method is validated by preparing artificial mixtures of the (R)-enantiomer and the racemate, and it is shown that with only 4 mg of mandelonitrile a detection limit of the minor enantiomer of 0.5% is obtained, corresponding to an enantiomeric excess value of 99%. Furthermore, the method shows high linearity, and has a small relative standard deviation of only 0.3% for the minor enantiomer when the relative abundance of this enantiomer is 20%. Therefore, the 13C NMR method is highly suitable for quantitative enantiodiscrimination. It is discussed that 13C NMR is preferred over 1H NMR in many situations, not only in molecules with more than one chiral center, resulting in complex mixtures of many stereoisomers, but also in the case of molecules with overlapping multiplets in the 1H NMR spectrum, and in the case of molecules with many quaternary carbon atoms, and therefore less abundant protons.

A structural study of (ethylene–vinyl alcohol) copolymers by high-resolution solid-state 13C NMR

Polymer ◽  
2000 ◽  
Vol 41 (7) ◽  
pp. 2391-2404 ◽  
Author(s):  
M. Kanekiyo ◽  
M. Kobayashi ◽  
I. Ando ◽  
H. Kurosu ◽  
S. Amiya
Keyword(s):  
Solid State ◽  
High Resolution ◽  
Structural Study ◽  
13C Nmr ◽  
Vinyl Alcohol ◽  
Ethylene Vinyl Alcohol ◽  
Solid State 13C Nmr
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