Structure and spectroscopic properties of etherates of the beryllium halides.

Bekiş, Deniz F.; Thomas-Hargreaves, Lewis R.; Berthold, Chantsalmaa; Ivlev, Sergei I.; Buchner, Magnus R.

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 [BeX2(L)2] (X = Cl, Br, I; L = Et2O, 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 [BeX2(OEt2)]2 (X = Cl, Br, I). The solid-state structures of [BeCl2(thf)2] and [BeBr2(thf)2] have been determined by single crystal X-ray diffraction analysis. [BeI2(thf)2] decomposed in all solvents. In CD2Cl2 the salt [Be(thf)4]I2 was formed, whereas in C6D6 and CDCl3, BeI2 precipitated and [BeI(thf)3] , [Be(thf)4]2 together with the thf ring-opening product [Be(μ2-O(CH2)4I)I(thf)]2 were observed in solution.

ETHER (Anesthetic); BERYLLIUM; RAMAN spectroscopy; SINGLE crystals; X-ray diffraction; COORDINATE covalent bond; DICHLOROMETHANE

Zeitschrift für Naturforschung B: A Journal of Chemical Sciences, 2023, Vol 78, Issue 3/4, p165

0932-0776

Academic Journal

10.1515/znb-2023-0303