High-Resolution NMR of S = 3/2 Quadrupole Nuclei by Detection of Double-Quantum Satellite Transitions via Protons

2020 ◽  
Vol 11 (12) ◽  
pp. 4734-4740 ◽  
Author(s):  
Ivan Hung ◽  
Zhehong Gan
Keyword(s):  
High Resolution ◽  
Double Quantum ◽  
High Resolution Nmr

High-resolution NMR spectroscopy in inhomogeneous fields via Hadamard-encoded intermolecular double-quantum coherences

2012 ◽  
Vol 25 (9) ◽  
pp. 1088-1094 ◽  
Author(s):  
Yushan Chen ◽  
Shuhui Cai ◽  
Congbo Cai ◽  
Xiaohong Cui ◽  
Zhong Chen
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
Double Quantum ◽  
High Resolution Nmr ◽  
Inhomogeneous Fields

Hadamard-encoded localized high-resolution NMR spectroscopy via intermolecular double-quantum coherences

2015 ◽  
Vol 622 ◽  
pp. 63-68
Author(s):  
Hanping Ke ◽  
Honghao Cai ◽  
Yanqin Lin ◽  
Liangjie Lin ◽  
Shuhui Cai ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
Double Quantum ◽  
High Resolution Nmr

The High Resolution NMR Spectra of Pesticides. II. The DDT-Type Compounds

1969 ◽  
Vol 52 (5) ◽  
pp. 1074-1092 ◽  
Author(s):  
L H Keith ◽  
A L Alford ◽  
A W Garrison
Keyword(s):  
Nuclear Magnetic Resonance ◽  
High Resolution ◽  
Nmr Spectra ◽  
Chemical Shifts ◽  
Coupling Constants ◽  
Aromatic Rings ◽  
Nuclear Magnetic Resonance Spectra ◽  
High Resolution Nmr ◽  
Related Compounds ◽  
Deshielding Effect

Abstract The high resolution nuclear magnetic resonance spectra of the DDT class of pesticides and related compounds are discussed, including a study of the resonances of the aromatic protons as they are affected by various substiluents. The CCl3 moiety on the α-carbon strongly deshields the ortho protons on the aromatic rings, and this deshielding effect is greatly enhanced by substitution of a chlorine ortho rather than para on the aromatic ring. These deshielding effects are explained by a consideration of the electronegativity of the substituents and the stereochemistry of the molecule. The chemical shifts and coupling constants are tabulated.

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