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Chemical compound From Wikipedia, the free encyclopedia
Molybdenum(III) iodide is the inorganic compound with the formula MoI3.
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IUPAC names
Molybdenum(III) iodide Molybdenum triiodide | |
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Properties | |
MoI3 | |
Molar mass | 476.65 g/mol |
Appearance | black solid[1] |
Melting point | 927 °C (1,701 °F; 1,200 K) [1] (decomposes) |
insoluble | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Molybdenum(III) iodide is created by the reaction of molybdenum hexacarbonyl with iodine gas at 105 °C (221 °F).[2]
It can also be made from molybdenum(V) chloride and a solution of hydrogen iodide in carbon disulfide.
A further method is direct reaction between molybdenum metal and excess iodine at 300 °C (572 °F).
As molybdenum(III) iodide is the highest stable iodide of molybdenum, this is the preferred route.[1]
Molybdenum(III) iodide is a black antiferromagnetic solid that is air-stable at room temperature. In vacuum, it decomposes above 100 °C to molybdenum(II) iodide and iodine. It is insoluble in polar and non-polar solvents.[2] Its crystal structure is isotypic with zirconium(III) iodide.[3]
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