The direct synthesis of alkali-metal pentafluoromanganates(III)

Bhattacharjee, Manabendra N. ; Chaudhuri, Mihir K. ; Dasgupta, Himadri S. ; Khathing, Darlando T. (1981) The direct synthesis of alkali-metal pentafluoromanganates(III) Journal of the Chemical Society, Dalton Transactions (12). pp. 2587-2588. ISSN 0300-9246

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The reduction of potassium permanganate with acetylacetone in the presence of an excess of alkali-metal difluoride AHF2(A = NH4, Na, K, or Cs) readily gives pentafluoromanganates(III), A2[-MnF5](A = NH4 or Na) or A2-[MnF5].H2O (A = K or Cs) in almost quantitative yield. Characterisation of the compounds was made from the results of i.r. spectral studies, chemical analyses, magnetic susceptibility measurements, and chemical determination of oxidation states of manganese in the various compounds.

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