Assignment of the 13C NMR spectrum by correlation to dipolar coupled proton-pairs and estimation of order parameters of a thiophene based liquid crystal

2015 ◽  
Vol 17 (2) ◽  
pp. 1450-1457 ◽  
Author(s):  
Y. Jayasubba Reddy ◽  
K. V. Ramanathan
Keyword(s):  
Liquid Crystal ◽  
13C Nmr ◽  
Quantum Coherence ◽  
Order Parameters ◽  
Double Quantum ◽  
Nmr Spectrum ◽  
Spectral Assignment

13C spectral assignment by correlation to proton double quantum coherence – order parameters of a thiophene based liquid crystal.

Biosynthesis of mevinolin. Spectral assignment by double-quantum coherence NMR after high carbon-13 incorporation

1983 ◽  
Vol 105 (10) ◽  
pp. 3334-3336 ◽  
Author(s):  
Jean K. Chan ◽  
Richard N. Moore ◽  
Thomas T. Nakashima ◽  
John C. Vederas
Keyword(s):  
Quantum Coherence ◽  
Double Quantum ◽  
High Carbon ◽  
Spectral Assignment

Molecular Order of a Liquid Crystal Investigated by Double-Quantum 13C NMR

1994 ◽  
Vol 116 (20) ◽  
pp. 9357-9358 ◽  
Author(s):  
D. Sandstroem ◽  
K. T. Summanen ◽  
M. H. Levitt
Keyword(s):  
Liquid Crystal ◽  
13C Nmr ◽  
Double Quantum ◽  
Molecular Order

Notizen:13C-NMR Chemical Shift Anisotropy of Acetylene

1972 ◽  
Vol 27 (10) ◽  
pp. 1536-1537 ◽  
Author(s):  
Gerhard Englert
Keyword(s):  
Liquid Crystal ◽  
Chemical Shift ◽  
Nematic Liquid Crystal ◽  
13C Nmr ◽  
Chemical Shift Anisotropy ◽  
Isotropic Phase ◽  
Nmr Spectrum ◽  
Chemical Shift Difference ◽  
Shielding Tensor ◽  
C Nmr

Abstract The 13C-NMR spectrum at 22.63 MHz and the PMR spectrum at 90 MHz of 13C enriched acetylene oriented in a nematic liquid crystal were measured by the pulsed Fourier technique and analysed. From the chemical shift difference between the nematic and the isotropic phase the anisotropy of the 13C shielding tensor of acetylene Δσ=+253 + 17 ppm was calculated.

scholarly journals Homopiperazine (Hexahydro-1,4-diazepine)

Molbank ◽  
10.3390/m1200 ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. M1200
Author(s):  
R. Alan Aitken ◽  
Dheirya K. Sonecha ◽  
Alexandra M. Z. Slawin
Keyword(s):  
13C Nmr ◽  
Title Compound ◽  
Coupling Constants ◽  
15N Nmr ◽  
Time Data ◽  
Nmr Spectrum ◽  
X Ray ◽  
First Time

The X-ray structure of the title compound has been determined for the first time. Data on its 1H–13C-NMR coupling constants and 15N-NMR spectrum are also given.

Sign in / Sign up

Export Citation Format

Share Document