Molybdenum(II) chloride

Molybdändichlorid

Yellow solid

Fixed

3.71 g · cm -3

530 ° C ( decomposition)

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Molybdenum ( II) chloride is an inorganic chemical compound of molybdenum from the group of chlorides.

Production and representation

Molybdenum ( II) chloride can be obtained by pyrolysis of molybdenum ( III) chloride

Are obtained by reaction of molybdenum or with phosgene.

Properties

Molybdenum ( II) chloride is a yellow, diamagnetic, air stable powder, which is insoluble in water, glacial acetic acid, toluene and gasoline. It is soluble in ethanol, ether, acetone, pyridine, diluted strong bases and concentrated hydrochloric acid. It has an orthorhombic crystal structure with space group Bbam (a = 11.249 pm, b = 1128.0 pm, c = 1406.7 pm ).

Molybdenum (II ) chloride MoCl2 ( Mo6Cl12 ) contains an octahedral Mo6 clusters and thus one of the metal clusters. The reaction and the physical properties of molybdenum halide complexes with a { Mo6X8 } 4 cluster nucleus (X = Cl, Br) were investigated intensively because of a long-lasting luminescence of some analogous compounds and their structural similarity with superconducting Chevrel Sergent -phase. Molybdenum ( II) chloride has a polymeric structure and can be described by the formula [ { Mo6Cl8 } Cl4/2Cl2 ] ∞. In the structure of the { Mo6Cl8 } 4 cluster cores are linked by chloride ligands to form infinite layers.