Minh Tho Nguyen, Tae-Kyu Ha, et al.
Molecular Physics
Ab initio multireference configuration interaction calculations yield an electron affinity of 0.604 ± 0.03 eV for methylene (3B 1), in excellent agreement with the best observed value of 0.628 ± 0.031 eV. The estimated theoretical error limit of 0.03 eV is based on energy convergence with respect to systematic expansion of both reference configuration space and one-particle basis set. Convergence to the full CI electron affinity is rapid, and significantly accelerated when corrections for quadruple electron excitations are included. © 1989 American Institute of Physics.
Minh Tho Nguyen, Tae-Kyu Ha, et al.
Molecular Physics
Kiyoshi Tanaka, Masahiro Sekiya, et al.
Journal of Chemical Physics
Megumu Yoshimine, Kiyoshi Tanaka, et al.
The Journal of Chemical Physics
Takeshi Noro, Megumu Yoshimine, et al.
Physical Review Letters