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The crystal structure of manganese(II) sulfide is similar to that of sodium chloride.. The pink color of MnS likely results from poor coupling between the lowest energy unoccupied Mn orbitals, resulting in discrete states rather than a delocalized band.
All of these salts dissolve in water to give faintly pink solutions of the aquo complex [Mn(H 2 O) 6] 2+. The structure of MnSO 4 ·H 2 O has been determined by X-ray crystallography (see figure). The tetrahydrate also features Mn(II) in an O 6 coordination sphere provided by bridging two sulfate anions and four aquo ligands. [3]
MMT has been used in Canadian gasoline since 1976 (and in numerous other countries for many years) at a concentration up to 8.3 mg Mn/L (though the importation and interprovincial trade of gasoline containing MMT was restricted briefly during the period 1997–1998) [3] [4] and was introduced into Australia in 2000. It has been sold under the ...
In Mn(CH 3) 2 (dmpe) 2, Mn(II) is low spin, which contrasts with the high spin character of its precursor, MnBr 2 (dmpe) 2 (dmpe = (CH 3) 2 PCH 2 CH 2 P(CH 3) 2). [38] Polyalkyl and polyaryl derivatives of manganese often exist in higher oxidation states, reflecting the electron-releasing properties of alkyl and aryl ligands. One example is [Mn ...
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It may refer more specifically to the following manganese minerals: Birnessite, (Na,Ca) 0.5 (Mn IV,Mn III) 2 O 4 · 1.5 H 2 O; Buserite, MnO 2 ·nH 2 O; Hausmannite, Mn II Mn III 2 O 4; Manganite, Mn III O(OH)
Other enzymes containing manganese are arginase and Mn-containing superoxide dismutase . Also the enzyme class of reverse transcriptases of many retroviruses (though not lentiviruses such as HIV) contains manganese. Manganese-containing polypeptides are the diphtheria toxin, lectins and integrins. [2]