Correction. Comparison on Molecular Motions Detected by the Spin Label Technique and Carbon-13 Nuclear Magnetic Resonance in Benzene Solution by Poly(mehtyl methacrylate)

1979 ◽  
Vol 83 (14) ◽  
pp. 1928-1928
Author(s):  
K. Murakami ◽  
J. Sohma
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Spin Label ◽  
Benzene Solution ◽  
Molecular Motions ◽  
Label Technique ◽  
Nuclear Magnetic

Solid-state N14 nuclear magnetic resonance techniques for studying slow molecular motions

1997 ◽  
Vol 107 (2) ◽  
pp. 346-354 ◽  
Author(s):  
Edward A. Hill ◽  
James P. Yesinowski
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
Molecular Motions ◽  
Nuclear Magnetic

SOLVENT EFFECTS IN THE NUCLEAR MAGNETIC RESONANCE SPECTRA OF BENZALMALONONITRILES

1965 ◽  
Vol 43 (9) ◽  
pp. 2585-2593 ◽  
Author(s):  
M. A. Weinberger ◽  
R. M. Heggie ◽  
H. L. Holmes
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Solvent Effects ◽  
Benzene Solution ◽  
Chemical Shifts ◽  
Olefinic Proton ◽  
Solvent Molecule ◽  
Nuclear Magnetic Resonance Spectra ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The nuclear magnetic resonance spectra of a series of substituted benzalmalononitriles were examined in various solvents. The chemical shifts for the olefinic protons are susceptible to large solvent effects which are interpreted as arising from association of a solvent molecule with the olefinic proton (acetone) or a site in its vicinity (benzene). With acetone this leads to a downfield shift from values observed in chloroform. In benzene solution the association produces increased shielding and is present in addition to a second solvation complex, the arrangement of which is governed by the substituent. The difference in behavior of the ethylenic proton in benzalmalononitriles from the formyl proton in benzaldehyde is ascribed to its more highly acidic nature.

Studies of specifically fluorinated carbohydrates. Part IV. Addition of the elements of "CIF" to D-glucal triacetate

1969 ◽  
Vol 47 (3) ◽  
pp. 379-385 ◽  
Author(s):  
L. D. Hall ◽  
J. F. Manville
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Benzene Solution ◽  
Major Product ◽  
Magnetic Resonance Studies ◽  
Nuclear Magnetic

Reaction of chlorine with a suspension of D-glucal triacetate and silver monofluoride in an acetonitrile/benzene solution, affords a mixture of the four possible 2-chloro-2-deoxy-D-glycopyranosyl fluoride triacetates. The structures of these derivatives have been established by nuclear magnetic resonance studies and confirmed by independent syntheses. The major product is 2-chloro-2-deoxy-β-D-glucopyranosyl fluoride triacetate. These results are compared with those from the related "BrF" and "IF" additions.

Cryoscopic and nuclear magnetic resonance studies of interaction between acetylacetone and water in benzene

1977 ◽  
Vol 55 (9) ◽  
pp. 1473-1479 ◽  
Author(s):  
Masanao Kato ◽  
Hitoshi Watarai ◽  
Nobuo Suzuki
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Association Constant ◽  
Freezing Point ◽  
Benzene Solution ◽  
Resonance Spectroscopy ◽  
Freezing Point Depression ◽  
Magnetic Resonance Studies ◽  
Enol Tautomer ◽  
Nuclear Magnetic

The interaction between acetylacetone and water in benzene solution has been examined by freezing point depression and nuclear magnetic resonance spectroscopy. The experimental results suggest that a 1:1 associated complex between acetylacetone and water is formed in benzene solution saturated with water, and the association constant is estimated to be 2.4 ± 0.1 (kg solvent/mol). By comparison with the results of methylacetylacetone and dimethylacetylacetone, it is suggested that the enol tautomer of acetylacetone preferentially associates with water.

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