Tetrakis(diethylamino)hafnium, Tetrakis(diethylamido)hafnium(IV), Hafnium tetrakis(diethylazanide), Hafniumtetrakis(diethylazanid), Diethyl[tris(diethylamino)hafnio]amine, TDEAH, [(CH2CH3)2N]4Hf, C16H40HfN4