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Numerical coupled Hartree--Fock study of the total (electronic and nuclear) parallel polarizability and hyperpolarizability for the FH, H/sup +//sub 2/, HD/sup +/, and D/sup +//sub 2/ molecules

Journal Article · · J. Chem. Phys.; (United States)
OSTI ID:6008265
Polarizabilities and hyperpolarizabilities of molecules have both electronic and vibrational contributions. The latter can be important in experimental determinations involving static electric fields, as in the Kerr effect. This paper reports purely numerical coupled Hartree--Fock calculations for the electronic states of FH. Electronic energy surfaces obtained for different electric field strengths are then used to solve, numerically, the nuclear equation for several vibrational states. The vibrational contributions to ..beta../sub z/zz exceed the electronic component and change the sign of the total hyperpolarizability. ..gamma../sub z/zzz is similarly increased by an order of magnitude. It is also shown that a Born--Oppenheimer treatment of H/sup +//sub 2/ for ..gamma../sub z/zzz is in perfect agreement with a recent fully nonadiabatic three particle solution.
Research Organization:
Qauntum Theory Project, University of Florida, Gainesville, Florida 32611
OSTI ID:
6008265
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 84:9; ISSN JCPSA
Country of Publication:
United States
Language:
English