English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

The existence of the dielectric constant e is investigated for fluids composed of classical deformable (polarizable) molecules. The development is based upon generalized functional‐derivative relations which involve joint distributions in molecular positions rk and dipole moments μk. Sufficient conditions for the existence of e are expressed in terms of the generalized direct correlation function c(12) = c(r1, μ1; r2, μ2). It is found that e exists if −kTc(12) depends only on relative positions and dipole moment directions (in addition to ‖μ1‖ and ‖μ2‖), and becomes asymptotic to the dipole–dipole potential at long range. An expression for e in terms of a short‐ranged total correlation function h0(12) emerges automatically from the development. An expression for e in terms of c(12) is also derived. The latter expression involves an inverse kernel in (‖μ1‖, ‖μ2‖) space. The case of rigid polar molecules is reconsidered as a special case of the present formulation.

Existence of the dielectric constant in fluids of classical deformable molecules