Factor analysis of solvent shifts in proton magnetic resonance

1970 ◽  
Vol 74 (26) ◽  
pp. 4537-4542 ◽  
Author(s):  
Edmund R. Malinowski ◽  
Paul H. Weiner ◽  
Alan R. Levinstone
Keyword(s):  
Factor Analysis ◽  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Solvent Shifts

Benzene solvent induced shifts of the proton magnetic resonance spectra of some benzene derivatives. Importance of charge effects

1970 ◽  
Vol 48 (18) ◽  
pp. 2885-2895 ◽  
Author(s):  
R. Wasylishen ◽  
T. Schaefer ◽  
R. Schwenk
Keyword(s):  
Magnetic Resonance ◽  
Linear Correlation ◽  
Proton Magnetic Resonance ◽  
Steric Effects ◽  
Benzene Derivatives ◽  
Charge Effects ◽  
Solvent Shift ◽  
Solvent Shifts ◽  
Substituent Constants ◽  
Magnetic Resonance Spectra

The benzene solvent shifts of the proton magnetic resonance spectra of numerous polysubstituted benzene derivatives are measured with respect to cyclohexane as reference solvent. For many of these compounds, an additive scheme can be devised in which the effect of a substituent, X, on the solvent shift, Δ, of a proton is given by Δix so that Δ = Σx, Σi Δix where i = ortho, meta, or para. There is a linear correlation of Δmx or Δpx with Taft's substituent constants σm0 and σp0. It is suggested that charge effects are much more important than steric effects in determining both the magnitude and sign of Δ.

Solvent shifts of the proton magnetic resonance of hydrogen, benzene and mesitylene

1984 ◽  
Vol 80 (9) ◽  
pp. 1039 ◽  
Author(s):  
Hans G. W. Geurds ◽  
Hans E. Regtuit ◽  
Marjon G. J. A. van den Meerendonk ◽  
Jaap Biemond
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Solvent Shifts
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