Abstract
It has been shown especially by NMR methods that in cyclic dimers of carboxylic acids crystals two types of motion of hydrogen-bonded protons may occur:
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simultaneous jumps of both protons along the asymmetric hydrogen bonds ( with small activation energy of 0.6 – 2 kcal/mole [1,2] )
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flips of the whole dimeric unit about its long axis ( with large activation energy of 12 – 16 kcal/mole [3,4] )
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S. Idziak et. al., Chem. Phys., 111, 439, (1987)
S. Idziak, Mol. Phys., 68, 1335, (1989)
R. Imaoka et. al., Bull. Chem. Soc. Japan, 61, 1865, (1989)
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© 1990 Springer-Verlag Berlin Heidelberg
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Idziak, S., Piślewski, N. (1990). Molecular Dynamics in Dimethylmalonic Acid Crystal as Studied by NMR. In: Mehring, M., von Schütz, J.U., Wolf, H.C. (eds) 25th Congress Ampere on Magnetic Resonance and Related Phenomena. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76072-3_315
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DOI: https://doi.org/10.1007/978-3-642-76072-3_315
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