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Supplement to spherical tensor theory of long‐range interactions between two molecules
Author(s) -
Piecuch Piotr
Publication year - 1985
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560280305
Subject(s) - multipole expansion , third order , range (aeronautics) , tensor (intrinsic definition) , order (exchange) , interaction energy , physics , molecule , statistical physics , computational chemistry , theoretical physics , mathematics , chemistry , quantum mechanics , materials science , pure mathematics , philosophy , theology , finance , economics , composite material
We simplify a recently obtained approximate formula for the third‐order interaction energy between two molecules expressed in terms of irreducible spherical polarizabilities and multipole moments of interacting systems. Similarly, we can simplify analogous higher‐order expressions. Then we briefly examine the magnitudes of the various third‐order contributions in comparison with the second‐order categories of long‐range interactions for some specific systems.