Cubane, manganese-oxygen

Fig. 7 Representation of a complexes containing the [Mn(IV)Mn(III)303Cl] cubane core. The Mn(IV) cation is that coordinated to the three oxygen atoms of the cubane, labeled as 4 in the exchange interactions described in the text (see Eq. 10). The carbon, manganese, oxygen, chlorine, and hydrogen atoms are represented by spheres of different shades of gray, from dark to bright, respectively...

Action of chlorine trifluoride causes incandescence [1]. Manganese dioxide catalytically decomposes powerful oxidising agents, often violently. Dropped into cone, hydrogen peroxide, the powdered oxide may cause explosion [2], Either the massive or the powdered oxide explosively decomposes 92% peroxomonosulfuric acid [3], and mixtures with chlorates ( oxygen mixture , heated to generate the gas) may react with explosive violence [4], Cuban pyrolusite can be used in place of potassium dichromate to promote thermal decomposition of potassium chlorate in match-head formulations [5],... 

Fig. 63. A manganese cubane cluster with a corner oxygen atom replaced by a chloride. [Reproduced with permission from (327). Copyright 1993 the American Chemical Society.]...

Enzymic photosystems that are employed for the liberation of oxygen from water contain polynuclear complexes with a cubane-like manganese core Mn402, which is immobilized on the protein complex by carboxyl groups. The bimetallic... 

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