scholarly journals The Nuclear Magnetic Resonance Spectra of Olefinic Protons and the Substituent Effects. V. Spin-spin Coupling intrans1,2-Disubstituted Ethylenes

1967 ◽  
Vol 40 (9) ◽  
pp. 2192-2194 ◽  
Author(s):  
Jun Niwa
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Substituent Effects ◽  
Spin Coupling ◽  
Nuclear Magnetic Resonance Spectra ◽  
Spin Spin Coupling ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

ORGANIC AND BIOLOGICAL SPECTROCHEMICAL STUDIES: XXII. THE INFRARED, ULTRAVIOLET, AND NUCLEAR MAGNETIC RESONANCE SPECTRA OF SOME SUBSTITUTED 2-INDANONES AND REFERENCE COMPOUNDS

1966 ◽  
Vol 44 (7) ◽  
pp. 759-769 ◽  
Author(s):  
Emil J. Moriconi ◽  
John P. St. George ◽  
W. F. Forbes
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Infrared Region ◽  
Spin Coupling ◽  
Nuclear Magnetic Resonance Spectra ◽  
Two Peaks ◽  
Spin Spin Coupling ◽  
Infrared Data ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

Infrared, ultraviolet, and nuclear magnetic resonance spectra of the following compounds are reported: 2-indanone (I), trans- and cis-hexahydro-2-indanone (V and XI), 1-chloro-2-indanone-1,3,3-d3 (III), 1-bromo-2-indanone-1,3,3-d3 (IV), 1-chloro-trans-hexahydro-2-indanone (VII), 1-bromo-trans-hexahydro-2-indanone (VIII), some deuterated forms of these compounds, 2-chlorocyclohexanone-2,6,6-d3, and 2-bromocyclohexanone-2,6,6-d3.2-Indanone and trans-hexahydro-2-indanone each display two peaks in the carbonyl infrared region with intensity ratios of approximately 40:1. The origin of these doublets is discussed.Nuclear magnetic resonance spectra were determined to indicate the presence or absence of ring mobility, and spin–spin coupling data were used to support some of the conclusions deduced from the infrared data for some of the compounds.

High Resolution Nuclear Magnetic Resonance Spectra of Bifluoride Ion and its Homologues

1971 ◽  
Vol 49 (18) ◽  
pp. 3071-3073 ◽  
Author(s):  
John S. Martin ◽  
Fred Y. Fujiwara
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Spin Coupling ◽  
Aprotic Solvents ◽  
Related Molecule ◽  
Nuclear Magnetic Resonance Spectra ◽  
Spin Spin Coupling ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The high resolution 1H and 19F nuclear magnetic resonance (n.m.r.) spectra of the four bihalide ions have been observed in aprotic solvents. The 1H shielding is, in every case, 14 p.p.m. less than that in the related molecule. The spin–spin coupling in FHF− is 120.5 ± 0.3 Hz.

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