THE PROTON MAGNETIC RESONANCE SPECTRUM OF 1-FLUORO-2,4-DINITROBENZENE

1962 ◽  
Vol 40 (3) ◽  
pp. 431-433 ◽  
Author(s):  
T. Schaefer

A reliable analysis of the proton resonance spectrum of 1-fluoro-2,4-dinitrobenzene is described. Solvent effects were used to obtain this analysis and a possible source of error in a previous analysis is indicated. Spectra parameters are also derived for 1,5-difluoro-2,4-dinitrobenzene. The spectrum of the latter compound confirms the assignment of peaks in the spectrum of the former.

1963 ◽  
Vol 41 (8) ◽  
pp. 1857-1866 ◽  
Author(s):  
H. M. Hutton ◽  
T. Schaefer

The proton magnetic resonance spectrum of bis(2,2-dichlorocyclopropyl) ether consists of two partially overlapping ABX spectra due to the meso and d,l isomers. A study of the temperature dependence of the spectra in different solvents demonstrates the existence of complex formation with benzene. It is found that for the most abundant isomer the heat of formation of the complex is −1700 ± 100 cal/mole, entropy of formation is −6.2 ± 0.3 e.u. The association shifts are 52 ± 2 c.p.s., 64 ± 5 c.p.s., and 88 ± 5 c.p.s. at 60 Mc/s for the three protons situated at different points in the molecule.


1967 ◽  
Vol 22 (1-4) ◽  
pp. 112-117 ◽  
Author(s):  
Chen Fee Chang ◽  
Billy J. Fairless ◽  
M.R. Willcott ◽  
R.F. Curl ◽  
Jurgen Hinze ◽  
...  

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