Theoretical investigation on the existence of the SiF−6 anion

✍ Scribed by G.L. Gutsev

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 387 KB
• Volume: 184
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(91)85128-j

✦ Synopsis

The octahedral configurations of SiFa-, n =O, 1 and 2, are considered within the framework of a density functional approach.

It is found for the first time that the SiF; anion is stable towards dissociation. The SiF; anion possesses a high first ionization potential, z 7 eV. and the adiabatic electron affinity of SiF, is estimated to be z 5 eV. The large adiabatic correction is stipulated by the dissociative character of the neutral molecule. The most striking feature of the SiF,, SiF; , SiFa-series consists of the nonstability of species formed after both attachment and detachment ofan electron to the SiF; anion.