Аннотация:The compounds M(BH4)2•[(CH3)2NCH2CH2N(CH3)2] (M = Mn and Zn) were obtained by the interaction of equimolar quantities of tetramethylethylenediamine and zinc or manganese tetrahydroborates in tetrahydrofuran or benzene. The synthesized compounds were characterized by chemical analysis, thermography, X-ray powder diffraction analysis, and IR spectroscopy