Synthesis of Dibromobis(triphenylphosphine oxide) manganese(II)

Separate solutions are prepared from 27.8 g of triphenylphosphine oxide dissolved in 20 mL of n-butanol and 10.75 g of manganese dibromide dissolved in 20 mL of n-butanol. Heating and stirring must be applied to completely dissolve the reactants. The solutions are combined, stirred and heated on a hot plate until no more precipitate forms. The mixture is cooled down, filtered and washed with some cold methanol. The crude product is then recrystallized from hot methanol.



The mixture after the combination of the solutions

The finished reaction



The product crystallizing ( under UV-light)

The pure product

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