Molybdenum Chloride Oxide

[13637-68-8] MoO2Cl2 (MW 198.84) InChI = 1S/2ClH.Mo.2O/h2*1H;;;/q;;+2;;/p-2 InChIKey = JCFNAADCQWXIJD-UHFFFAOYSA-L (used as a catalyst for various oxidation and reduction reactions) Alternate names: dichlorodioxomolybdenum; molybdenum dichloride dioxide; molybdenum dioxide dichloride; molybdenumdioxodichloride; molybdenum dioxychloride; molybdenum oxychloride; molybdyl chloride. Physical Data: melting point: 175 °C, relative density 3.31 g cm−3 at 25 °C. Solubility: no quantitative data available, commonly used solvents are methanol, THF, acetonitrile, toluene, and dichloromethane. Form Supplied in: yellow flakes. Preparation and Purification: molybdenum dioxide dichloride is prepared by reaction of MoO2 with dry chlorine. The reaction proceeds at 160 °C. The crude product thus formed is purified by sublimation.2 An alternative preparation is to pass a 1:1 mixture of dry chlorine and oxygen over molybdenum metal at 250–350 °C.3 Handling, Storage and Precaution: the compound should be stored under an inert atmosphere to avoid decomposition. Contact with moisture results in formation of toxic hydrogen chloride gas.