Ethylenediamine complexes of the beryllium halides and pseudo-halides

The suitability of ethylenediamine (en) as an alternative solvent to liquid ammonia in beryllium chemistry was evaluated. Therefore, BeF2, BeCl2, BeBr2, BeI2, [Be(NH3)(4)](N-3)(2), [Be(NH3)(4)](CN)(2) and [Be(NH3)(4)](SCN)(2) were reacted with ethylenediamine and analysed via NMR and IR spectroscopy. Additionally single crystal structures of [BeF2(en)](n), [Be(en)(3)]Cl-2, [Be(en)(3)]Br-2, [Be(en)(2)]I-2 center dot en, [Be(en)(2)](N-3)(2)center dot en, [Be(en)(2)](4)(SCN)(7)Cl and [Be-3(OH)(3)(en)(3)][C2H9N2](SCN)(4) were obtained. The anions were found to have a distinct influence on the solubility as well as on the species present in solution and the solid state, while ethylenediamine can act as mono- and bidentate ligand or as a crystal solvent.

Automated summary

Ethylenediamine's suitability as an alternative solvent in beryllium chemistry was evaluated through reactions with various beryllium compounds and analysis through spectroscopy. The anions were found to significantly influence solubility and the species present, while ethylenediamine can act as different types of ligands or crystal solvents.