Preparation of dinitrogen complexes Mo(N2)2P4 stabilised by phosphonite PPh(OEt)2 and phosphinite PPh2(OEt) ligands |
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| Authors: | Gabriele Albertin Emilio BordignonFederica Tonel |
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| Institution: | Dipartimento di Chimica, Università Ca’ Foscari di Venezia, Dorsoduro 2137, I-30123 Venice, Italy |
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| Abstract: | Dinitrogen complexes Mo(N2)2P41, 2 P=PPh(OEt)2 and PPh2OEt] were prepared by allowing a MoCl3(THF)3 solution containing an excess of phosphine to react with magnesium under nitrogen. Substitution reactions with CO and p-tolylisocyanide were studied, and led to Mo(CO)2P4, Mo(CO)3P3, and Mo(p-tolylNC)2P4 derivatives. Treatment of dinitrogen compound Mo(N2)2PPh(OEt)2]4 with an excess of HCl gave the hydrazido(2-) MoCl(NNH2){PPh(OEt)2}4]Cl derivative. Reduction reactions with zinc amalgam of complexes 1 and 2 in the presence of lutidine·HCl gave ammonia in about 8-10% yield. |
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| Keywords: | Molybdenum Dinitrogen complexes Phosphite Reduction Reactivity |
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