✦ LIBER ✦

Critical comments on the nonlocal dielectric function employed in recent theories of the hydration force

✍ Scribed by Phil Attard; Dongqing Wei; G.N. Patey

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 383 KB
Volume: 172
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(90)87218-g

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✦ Synopsis

In several recent theories of the hydration force based on nonlocal electrostatics, the nonlocal dielectric function is assumed to have a simple monotonic dependence upon the wavelength k. Here it is shown that the functional form assumed is seriously inconsistent with exact expressions for multipolar models. Since the erroneous form is essential to the predicted exponential decay of the hydration force, it would appear that theoretical treatments in which it is employed are without solid foundation.