High Resolution 13C Spectrum and Long-Range 13C,H Couplings in 2-Pyrone

1975 ◽  
Vol 53 (13) ◽  
pp. 1980-1983 ◽  
Author(s):  
A. A. Chalmers ◽  
K. G. R. Pachler
Keyword(s):  
High Resolution ◽  
Long Range ◽  
Natural Abundance ◽  
Related Compounds

The natural abundance 13C n.m.r. spectrum of 2-pyrone has been analyzed by the 13C–{1H} SPI technique. The magnitudes and signs of all long-range 13C,H couplings have been obtained and are compared with those of related compounds.

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.

High resolution spectrum of NO2 loosely bound states: densities of states and long range forces

2001 ◽  
Vol 3 (12) ◽  
pp. 2268-2274 ◽  
Author(s):  
Sylvain Heilliette ◽  
Antoine Delon ◽  
Patrick Dupre´ ◽  
Re´my Jost
Keyword(s):  
High Resolution ◽  
Long Range ◽  
Bound States ◽  
High Resolution Spectrum ◽  
Densities Of States

High-resolution long-range radar imaging at 94 GHz

2006 ◽  
Author(s):  
Duncan A. Robertson ◽  
David G. Macfarlane
Keyword(s):  
High Resolution ◽  
Long Range ◽  
Radar Imaging

High-resolution polarization analysis study of long-range magnetic order in cuprates

2005 ◽  
Vol 71 (21) ◽  
Author(s):  
Zahirul Islam ◽  
D. Haskel ◽  
J. C. Lang ◽  
G. Srajer ◽  
X. Liu ◽  
...  
Keyword(s):  
High Resolution ◽  
Long Range ◽  
Magnetic Order ◽  
Polarization Analysis ◽  
Analysis Study ◽  
Range Magnetic Order ◽  
Long Range Magnetic Order

Techniques on Long-Range and High-Resolution Imaging Lidar

2013 ◽  
Vol 50 (5) ◽  
pp. 050002
Author(s):  
金晓峰 Jin Xiaofeng ◽  
张鹏 Zhang Peng ◽  
刘春华 Liu Chunhua ◽  
孙建锋 Sun Jianfeng ◽  
刘立人 Liu Liren
Keyword(s):  
High Resolution ◽  
Long Range ◽  
High Resolution Imaging ◽  
Resolution Imaging
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