Syntheses and Crystal Structures of Alkaline Earth Metal Hydrogen Acetylides AE(C₂H)₂ with AE = Ca, Sr, Ba.

ABSTRACT: Crystalline Ba(C₂H)₂ was obtained by the reaction of elemental barium dissolved in liquid ammonia, forming a blue electride, and acetylene (C₂H₂) injected into the reaction vial with the electride solution. From the colorless precipitate that was obtained after evaporation of the ammonia, the crystal structure of Ba(C₂H)₂ was solved and refined using synchrotron powder diffraction data. It crystallizes in the trigonal space group P3̅m1 (no. 164) with Z = 1, all HC₂^- anions are aligned along [001]. It is the first crystal structure of an alkaline earth metal hydrogen acetylide published up to now, showing a close similarity with the brucite (Mg(OH)₂) and CdI₂-ty

SUBMITTER: Kortgen L 

PROVIDER: S-EPMC11653249 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature