Hexahalodiborate Dianions: A New Family of Binary Boron Halides.

ABSTRACT: The electron-precise binary boron subhalide species [B₂ X₆ ]^2- X=F, Br, I) were synthesized and their structures confirmed by X-ray crystallography. The existence of the previously claimed [B₂ Cl₆ ]^2- , which had been questioned, was also confirmed by X-ray crystallography. The dianions are isoelectronic to hexahaloethanes, are subhalide analogues of the well-known tetrahaloborate anions (BX₄ ^- ), and are rare examples of molecular electron-precise binary boron species beyond B₂ X₄ , BX₃ , and [BX₄ ]^- .

SUBMITTER: Belanger-Chabot G 

PROVIDER: S-EPMC7028027 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature