Low-temperature carbon-13 magnetic resonance. 8. Chemical shielding anisotropy of olefinic carbons

1988 ◽  
Vol 110 (11) ◽  
pp. 3386-3392 ◽  
Author(s):  
Anita M. Orendt ◽  
Julio C. Facelli ◽  
Alvin J. Beeler ◽  
Karl. Reuter ◽  
W. J. Horton ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Low Temperature ◽  
Chemical Shielding

Low-temperature carbon-13 magnetic resonance in solids. 5. Chemical shielding anisotropy of the 13CH2 group

1985 ◽  
Vol 107 (24) ◽  
pp. 6749-6754 ◽  
Author(s):  
Julio C. Facelli ◽  
Anita M. Orendt ◽  
Alvin J. Beeler ◽  
Mark S. Solum ◽  
Gisbert Depke ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Low Temperature ◽  
Chemical Shielding

A Circular-Disk Dielectric Resonator for Low-Temperature Magnetic Resonance Measurements at Millimeter and Sub-Millimeter Wavelengths

2008 ◽  
Vol 67 (14) ◽  
pp. 1239-1245
Author(s):  
V. N. Derkach ◽  
T. V. Bagmut ◽  
R. V. Golovashchenko ◽  
V. G. Korzh ◽  
S. V. Nedukh ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Low Temperature ◽  
Dielectric Resonator ◽  
Circular Disk ◽  
Millimeter Wavelengths

Magnetic resonance saturation and cross-relaxation at low temperature

Physica B+C ◽  
1981 ◽  
Vol 111 (2-3) ◽  
pp. 219-230 ◽  
Author(s):  
L.J. de Haas ◽  
W.Th. Wenckebach ◽  
N.J. Poulis
Keyword(s):  
Magnetic Resonance ◽  
Low Temperature ◽  
Cross Relaxation ◽  
Resonance Saturation

A 19F nuclear magnetic resonance and Raman spectroscopic investigation of the reaction of iodine oxide pentafluoride with the Lewis acids, antimony and arsenic pentafluoride

1978 ◽  
Vol 56 (17) ◽  
pp. 2253-2258 ◽  
Author(s):  
Morley Brownstein ◽  
Ronald J Gillespie ◽  
John P. Krasznai
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Raman Spectroscopy ◽  
Magnetic Resonance ◽  
Low Temperature ◽  
Oxygen Atom ◽  
Spectroscopic Investigation ◽  
Lewis Acids ◽  
Raman Spectroscopic ◽  
Nuclear Magnetic

The reactions of IOF5 with SbF5 and with AsF5 have been investigated at low temperature by 19F nmr and Raman spectroscopy. It was found that SbF5 forms labile 1:1 and 2:1 complexes whereas AsF5 forms only a 1:1 complex. The IOF5 is bound through its oxygen atom to the Lewis acids AsF5, SbF5, or (SbF5)2.

Magnetic resonance in lamno3 at low temperature

Physica ◽  
1953 ◽  
Vol 19 (1-12) ◽  
pp. 412-414 ◽  
Author(s):  
Tosihiko Okamura ◽  
Yuzo Kojima
Keyword(s):  
Magnetic Resonance ◽  
Low Temperature

Deshielding γ–gauche effects in 13C magnetic resonance: a comparison of the conformational behaviour of the acetyl group in cyclohexane and 5-substituted-1,3-dioxane systems

1984 ◽  
Vol 62 (7) ◽  
pp. 1308-1311 ◽  
Author(s):  
G. W. Buchanan ◽  
S. H. Preusser ◽  
V. L. Webb
Keyword(s):  
Magnetic Resonance ◽  
Chemical Shift ◽  
Low Temperature ◽  
Direct Measurement ◽  
Carbonyl Carbon ◽  
Acetyl Group ◽  
Carbon Chemical Shift ◽  
Reported Data

Low temperature (173 K) 13C spectra of acetylcyclohexane, 1-acetyl-1-methylcyclohexane, and 5-acetyl-5-methyl-1,3-dioxane are reported. Data permit the first direct measurement of −ΔG0 for the acetyl group bonded to cyclohexane. The value obtained, 1.02 ± 0.05 kcal/mol in CS2–CD2Cl2 solution, is considerably lower than that determined by equilibration methods. Factors contributing to observed axial–equatorial carbonyl carbon chemical shift differences for substituted cyclohexanes and 1,3-dioxanes are discussed.

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