FLi₄X₄^- (X = Cl, Br, I): Superhalogen Anions with Planar Tetracoordinate Fluorine.

ABSTRACT: The concept of superhalogen was proposed for more than 40 years, and it has never been associated with planar tetracoordinate fluorine (ptF) species. In this work, using Li as the ligands and Cl, Br, I as the auxiliary atoms, we have designed the star-like D_4h FLi₄X₄^- (X = Cl, Br, I) clusters, which contain the ptF at the centers. They are all global minima (GMs) based on unbiased searches on the potential energy surfaces. Born-Oppenheimer molecular dynamics (BOMD) simulations suggest that these ptF structures are robust against dissociation at room temperature. Chemical bonding analyses indicate that there are four lone pairs (LPs) for ptF, three LPs for each X atom, and four 3c-2e Li-X-Li σ bonds. The stabilities of these ptF clus

SUBMITTER: Li YX 

PROVIDER: S-EPMC11643589 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature