PROTON MAGNETIC RESONANCE ABSORPTION IN ANHYDROUS SODIUM STEARATE

1960 ◽  
Vol 38 (12) ◽  
pp. 2395-2401 ◽  
Author(s):  
R. F. Grant ◽  
B. A. Dunell
Keyword(s):  
Phase Transition ◽  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Abrupt Change ◽  
Sodium Stearate ◽  
Longitudinal Axis ◽  
Hydrocarbon Chain ◽  
Resonance Absorption ◽  
Fixed Position ◽  
Hydrocarbon Chains

The proton magnetic resonance absorption in anhydrous sodium stearate has been investigated over the temperature range −182 °C to 200 °C. An abrupt change in the line width and the second moment has been observed between 113 °C and 114 °C, which corresponds to a known phase transition. The results suggest that at temperatures below 114 °C the motion of the hydrocarbon-chain portion of the sodium stearate molecule is chiefly one of oscillation or rotation about the chain longitudinal axis. The hydrocarbon chains may be free to move about other axes at temperatures above 114 °C, although the molecule as a whole retains a fixed position in the crystal lattice.

PROTON MAGNETIC RESONANCE ABSORPTION IN HIGH TEMPERATURE PHASES OF ANHYDROUS SODIUM STEARATE

1964 ◽  
Vol 42 (5) ◽  
pp. 1098-1101 ◽  
Author(s):  
M. R. Barr ◽  
B. A. Dunell
Keyword(s):  
Nuclear Magnetic Resonance ◽  
High Temperature ◽  
Magnetic Resonance ◽  
Line Width ◽  
Proton Magnetic Resonance ◽  
Lattice Structure ◽  
Sodium Stearate ◽  
Resonance Absorption ◽  
Liquid Phases ◽  
Nuclear Magnetic Resonance Spectra

Nuclear magnetic resonance spectra of anhydrous sodium stearate have been observed between 114° and 320 °C. The observed changes in line width and second moment suggest a grouping of the mesomorphic phases into a waxy group in which a lattice structure is preserved for the polar ends of the molecules and a group consisting of the neat and liquid phases in which diffusion takes place freely.

Proton Magnetic Resonance Absorption in Hydrogen Perchlorate Monohydrate and the Structure of Oxonium Ion

1951 ◽  
Vol 19 (8) ◽  
pp. 1069-1069 ◽  
Author(s):  
Yoshinobu Kakiuchi ◽  
Hisao Shono ◽  
Hachiro Komatsu ◽  
Kunihiko Kigoshi
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Resonance Absorption

Proton Magnetic-Resonance Absorption in Solid Methane

1965 ◽  
pp. 1118-1121 ◽  
Author(s):  
R. P. Wolf ◽  
W. M. Whitney
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Resonance Absorption ◽  
Solid Methane

Erratum: “Proton Magnetic Resonance Absorption in Hydrogen Perchlorate Monohydrate and the Structure of the Oxonium Ion I.”

1952 ◽  
Vol 7 (4) ◽  
pp. 438-438 ◽  
Author(s):  
Yoshinobu Kakiuchi ◽  
Hisao Shono ◽  
Hachiro Komatsu ◽  
Kunihiko Kigoshi
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Resonance Absorption

ChemInform Abstract: PROTON MAGNETIC RESONANCE AND PHASE TRANSITION IN CRYSTALLINE 1,1,1-TRIFLUORO-3-CHLOROPROPANE

1977 ◽  
Vol 8 (8) ◽  
pp. no-no
Author(s):  
G. E. KIBRIK ◽  
YU. I. ROZENBERG
Keyword(s):  
Phase Transition ◽  
Magnetic Resonance ◽  
Proton Magnetic Resonance

Proton magnetic resonance absorption in ferrocene and dibenzenechromium

1957 ◽  
Vol 4 (3-4) ◽  
pp. 231-232 ◽  
Author(s):  
L.N. Mulay ◽  
E.G. Rochow ◽  
E.O. Fischer
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Resonance Absorption

New phase transition studied by proton magnetic resonance in a [N(CH3)4]2CuCl4 single crystal

2000 ◽  
Vol 114 (6) ◽  
pp. 321-324 ◽  
Author(s):  
Ae Ran Lim ◽  
Kwan Soo Hong ◽  
Se-Young Jeong
Keyword(s):  
Phase Transition ◽  
Magnetic Resonance ◽  
Single Crystal ◽  
Proton Magnetic Resonance ◽  
New Phase
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