2,2′-Bipyridyl derivatives of molybdenum-(IV), -(V), and -(VI) and tungsten-(IV), -(V), and -(VI)
- 1 January 1966
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 1633-1635
- https://doi.org/10.1039/j19660001633
Abstract
Reaction of the compounds M(CO)4Bipy (Bipy = 2,2′-bipyridyl; M = Mo and W) with excess of chlorine and bromine leads to derivatives of the metals in oxidation states 4, 5, and 6. Reaction in pure dichloromethane yields the derivatives MBipyX4, while similar reactions in the presence of small amounts of ethanol lead to the oxo-trihalides MoOBipyX3 and WOBipyCl3. Reaction of bromine with the compound Mo(CO)4Bipy in a 1:1 ethanol–dichloro-methane yields MoO2BipyBr2 and the corresponding dichloride can be prepared by a metathetical reaction in boiling acetone. The compounds WO2BipyX2 can be prepared readily in pure ethanol.Keywords
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