Hylleraas hydride binding energy: diatomic electron affinities

Theoretical adiabatic electron affinities are often considered inaccurate because they are referenced to only a single value. Ground state electron affinities for all the main group elements and homonuclear diatomics were identified recently using the normalized binding energy of the hydrogen atom:...

Бүрэн тодорхойлолт

Номзүйн дэлгэрэнгүй
Үндсэн зохиолчид: Keith, Herman, Lim, Tristan, Pham, Dang, Rosenthal, Reece, Pai, Sunil, Chen, Edward S., Flores, R. A., Chen, Edward C. M., Herder, Charles Henry
Бусад зохиолчид: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Формат: Өгүүллэг
Хэл сонгох:English
Хэвлэсэн: Springer Berlin Heidelberg 2017
Онлайн хандалт:http://hdl.handle.net/1721.1/107384
https://orcid.org/0000-0003-1117-7293
Тодорхойлолт
Тойм:Theoretical adiabatic electron affinities are often considered inaccurate because they are referenced to only a single value. Ground state electron affinities for all the main group elements and homonuclear diatomics were identified recently using the normalized binding energy of the hydrogen atom: [0.75420375(3)/2 = 0.37710187(1) eV]. Here we revisit experimental values and extend the identifications to diatomics in the G2-1 set. We assign new ground state electron affinities: (eV) Cl[subscript 2], 3.2(2); Br[subscript 2], 2.87(14); CH, 2.1(2); H[subscript 2], 0.6 ; NH, 1.1, SiH, 1.90. Anion Morse potentials are calculated for H[subscript 2] and N[subscript 2] from positive electron affinities and for hyperfine superoxide states for the first time.