Molybdenum triiodide

Molybdenum hexafluoride. 3,1412 Molybdenum-iron-sulfur complexes, 4,241 Molybdenum oxide amino acid formation prebiotic systems, 6, 872 Molybdenum storage protein microorganisms, 6, 681 Molybdenum telluride, 3, 1431 Molybdenum tetraalkoxides physical properties, 2, 347 Molybdenum tribromide, 3,1330 Molybdenum trichloride, 3,1330 Molybdenum trifluoride, 3, 1330 Molybdenum trihalides, 3, 1330 bond lengths, 3, 1330 magnetic moments, 3,1330 preparation, 3,1330 properties, 3, 1330 structure, 3,1330 Molybdenum triiodide, 3,1330 Molybdenum trioxide complexes, 3, 1379 Molybdenum triselenide, 3, 143)... 

Undoubtedly, the best method for the production of pure anhydrous lanthanide trihalides involves direct reaction of the elements. However, suitable reaction vessels, of molybdenum, tungsten, or tantalum, have to be employed silica containers result in oxohalides (27). Trichlorides have been produced by reacting metal with chlorine (28), methyl chloride (28), or hydrogen chloride (28-31). Of the tribromides, only that of scandium has been prepared by direct reaction with bromine (32). The triiodides have been prepared by reacting the metal with iodine (27, 29, 31, 33-41) or with ammonium iodide (42). 

Containment of this particular combination of metal, trichloride, and HO at reaction temperatures presents a problem of the same character as occurs in the preparation of the triiodides of these elements (this volume. Chapter 1, Sec. 6). These metals all dissolve in (reduce) the liquid trichlorides to some d ee, and this process greatly accelerates the spontaneous reduction of SiO by the metal to form silicide and oxide. The same problem pertains to all known ceramic materials. Container metals which are the most inert to both the rare earth elements and HQ are limited to tungsten and molybdenum and then only if reactions such as Mo(s) + 4HCl(g) -> MoCl4(g) + 2H2(g) are suppressed by the addition of H2. The last is not a serious problem for example, with Phj/Pho > 10 the pressures of all gaseous molybdenum chlorides are estimated to be <10 atm at 800°. Molybdenum is the material of choice because of its greater ease of fabrication." ... 

C8H 12CII 3MoN(,0, trans-Oxochlorotetrakis (methylisocyanide)molybdenum-(IV) triiodide, 42B, 607... 

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