Generalized integral-screening for efficient calculations of nonlinear optical properties of large molecules
1998 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 108, no 19, 7973-7979 p.Article in journal (Refereed) Published
We describe the implementation of integral screening in the integral-direct SCF calculation of cubic response functions. The screening is applied to all computational steps that involve the construction of Fock matrices or one-index transformed Fock matrices. We apply this implementation to study the length dependence of the polarizability and second hyperpolarizability of diphenylpolyenes. It is demonstrated that calculations of the second hyperpolarizability of molecules containing more than 140 atoms are now accessible by ab initio methods on a time scale that makes it of interest in real applications.
Place, publisher, year, edition, pages
1998. Vol. 108, no 19, 7973-7979 p.
IdentifiersURN: urn:nbn:se:kth:diva-198835ScopusID: 2-s2.0-0000434435OAI: oai:DiVA.org:kth-198835DiVA: diva2:1058712
QC 201612222016-12-212016-12-212016-12-22Bibliographically approved