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Observations of acoustic velocities in DNA fibers have been used to refine nonbonded force constants for the DNA double helix. Long‐range forces are found to be needed for A conformation and are likely to dominate in B conformation as well. The acoustic dispersion curves are described and calculated. A correction due to the effects of water is calculated. The effect of nonbonded interaction on other vibrational modes is calculated.
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Mei et al. (1981) studied this question.
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