Hydrogen Bond Studies. 64. A Proton Magnetic Resonance Study of Molecular Motion in Solid Trimethylammonium Chloride.
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منابع مشابه
Proton Magnetic Resonance Study of Molecular Motion in Solid Silver Sulfate Tetrammine, Ag2S04 • 4NHS
The spin lattice relaxation time T\ and the second moment of the proton magnetic resonance were studied on polycrystalline samples of Ag2S04 • 4NH3. The wideline NMR measurements show a rapid reorientation of the NH3 groups around their threefold axes in the temperature range 250 K ^ T ^ 380 K. Below T 250 K, the rotation of the NH3 starts freezing-in. From Ti measurements an activation energy ...
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The concept of Resonance Assisted Hydrogen Bond (RAHB), which usually occurs in b diketons, has a remarkable role in chemistry. These molecules, which contain heteroatom particularly O and N, are species with biological interest in protein folding and DNA pairing. Therefore, the amplification of hydrogen bonds strength by substituents may be important in life scie...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1972
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.26-3075