Addition compounds of dichlorodioxomolybdenum(VI) from hydrochloric acid solutions of molybdenum trioxide. Crystal structure of dichlorodioxodiaquamolybdenum(VI) bis(2,5,8-trioxanonane)

The behaviour of hydrochloric acid solutions of MoO3 with some common solvents has been explored. MoO2Cl2(H2O)2 separates from solution stabilized as polyether solvates. The crystal structure of [MoO2Cl2(H2O)2(2,5,8-trioxanonane)2] presents octahedral MoO2Cl2(H2O)2 units linked to the polyether chains through hydrogen bonds involving the water molecules. The polyether molecules show a cis-cis conformation.