Molybdenum dichloride dioxide

Molybdenum dichloride dioxide is the inorganic compound with the formula. It is a yellow diamagnetic solid that is used as a precursor to other molybdenum compounds. Molybdenum dichloride dioxide is one of several oxychlorides of molybdenum.

Structure

Gaseous molybdenum dichloride dioxide is a monomer, but upon condensation, it polymerizes to give a coordination polymer of uncertain structure.

Preparation

MoO₂Cl₂ can also be prepared from MoOCl₄:
It is also prepared by chlorination of molybdenum dioxide and molybdenum trioxide:

Reactions

Many bisadducts are known of the type. These octahedral molecular complexes are soluble in organic solvents. The adduct with dimethylsulfoxide can be readily prepared by treatment molybdenum trioxide with concentrated hydrochloric acid:
When treated with bulky anilines, converts to diimido complexes, one of which is. This complex is the precursor to the Schrock carbenes of the type.