Beschreibung:
<jats:title>Abstract</jats:title>
<jats:p>The synthesis of beryllium halide etherates and the solution behavior in benzene, dichloromethane, and chloroform was studied by NMR, IR, and Raman spectroscopy. Mononuclear units of [Be<jats:italic>X</jats:italic>
<jats:sub>2</jats:sub>(<jats:italic>L</jats:italic>)<jats:sub>2</jats:sub>] (<jats:italic>X</jats:italic> = Cl, Br, I; <jats:italic>L</jats:italic> = Et<jats:sub>2</jats:sub>O, thf) were identified as the favorably formed species in solution. Treatment of the mononuclear diethyl ether beryllium halide adduct with one equivalent beryllium halide formed the dinuclear compounds [Be<jats:italic>X</jats:italic>
<jats:sub>2</jats:sub>(OEt<jats:sub>2</jats:sub>)]<jats:sub>2</jats:sub> (<jats:italic>X</jats:italic> = Cl, Br, I). The solid-state structures of [BeCl<jats:sub>2</jats:sub>(thf)<jats:sub>2</jats:sub>] and [BeBr<jats:sub>2</jats:sub>(thf)<jats:sub>2</jats:sub>] have been determined by single crystal X-ray diffraction analysis. [BeI<jats:sub>2</jats:sub>(thf)<jats:sub>2</jats:sub>] decomposed in all solvents. In CD<jats:sub>2</jats:sub>Cl<jats:sub>2</jats:sub> the salt [Be(thf)<jats:sub>4</jats:sub>]I<jats:sub>2</jats:sub> was formed, whereas in C<jats:sub>6</jats:sub>D<jats:sub>6</jats:sub> and CDCl<jats:sub>3</jats:sub>, BeI<jats:sub>2</jats:sub> precipitated and [BeI(thf)<jats:sub>3</jats:sub>]<jats:sup>+</jats:sup>, [Be(thf)<jats:sub>4</jats:sub>]<jats:sup>2+</jats:sup> together with the thf ring-opening product [Be(<jats:italic>μ</jats:italic>
<jats:sub>2</jats:sub>-O(CH<jats:sub>2</jats:sub>)<jats:sub>4</jats:sub>I)I(thf)]<jats:sub>2</jats:sub> were observed in solution.</jats:p>