Abstract
Magnesium and bismuth react with dinitrogen tetroxide in acetonitrile solution to give acetonitrile adducts of magnesium and bismuth nitrates. With excess dinitrogen tetroxide, bismuth reacts to form a bismuth nitrate adduct which can be decomposed to give anhydrous bismuth nitrate. Many metals which do not react with dinitrogen tetroxide in acetonitrile do react in dimethylsulphoxide, probably as a consequence of the greater co-ordinating ability of dimethylsulphoxide toward both dinitrogen tetroxide and the metal cation formed in the reaction. Antimony gives a white, deliquescent substance having the composition expressed by the formula SbO(NO 3)·(CH 3) 2SO, bismuth, a colourless crystalline substance with a composition expressed by the formula Bi(NO 3) 3·3(CH 3) 2SO. Molybdenum is oxidized to the +6 oxidation state, and a yellow crystalline compound of unknown structure having the unusual stoicheiometry 4MoO 3·5(CH 3) 2SO is formed. Lead reacts readily to give lead nitrate. Aluminium, titanium, iron, nickel, chromium, tin, arsenic, silicon and selenium show little or no tendency to react with dinitrogen tetroxide in dimethylsulphoxide.
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