A β-diketiminato magnesium acetylide and formation of an imido aluminium magnesium hydride compound

► The first β-diketiminato magnesium acetylide has been synthesised. ► The structure of a β-diketiminato magnesium acetylide has been determined. ► An unusual imido aluminium magnesium hydride has been synthesised. ► The structure of a compound with six hydrido magnesium contacts has been determined.