Bromide incorporation into a high-oxidation-state manganese aggregate, and reversible redox processes for the [Mn4O3X(OAc)3(dbm)3](X = Cl, Br) complexes
- 1 January 1992
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 19,p. 1427-1429
- https://doi.org/10.1039/c39920001427
Abstract
Treatment of [Mn4O2(OAc)6(py)2(dbm)2](dbmH = dibenzoylmethane) with either NBun 4Br in hot MeCN or Me3SiBr in CH2Br2 leads to the 3MnIII, MnIV cubane complex [Mn4O3Br(OAc)3(dbm)3]3, the initial example of Br– bridging high-oxidation-state ( III) Mn ions; in addition, 3 and its Cl– analogue display similar and reversible redox processes and similar magnetic exchange interactions, observations of significant biological relevance to the photosynthetic water-oxidation enzyme.Keywords
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