Two novel blue luminescent organoaluminum complexes Al-4(CH3)(6)(mu(3)-O)(2)(dpa)(2) (1) and Al-3(7-azain)(4)(OCH(CF3)(2))(2)(CH3)(mu(3)-O) (2) (dpa = deprotonated di-2-pyridylamine, 7-azain = deprotonated 7-azaindole) have been synthesized and characterized structurally. The unusual stability of these compounds is attributed to the presence of the triply-bridging oxo ligand.