Abstract

Rakesh Kumar¹ and Gursharan Singh^2*

DOI : http://dx.doi.org/10.13005/ojc/370306

It has been reported that molybdenum may extract oxygen from oxygen containing ligands. Oxo complexes of above bases with transition metals show numerous applications and are biologically active. So to study the biological activity of molybdenum complexes and to study oxo abstraction reactions by molybdenum, reactions of succinimide/1, 4-diaminobutane/3-methylpyridine/1, 3-diaminopropane/pyrazole/1-methylpyrrolidine with MoCl5/MoO2Cl2 have been carried out, in THF medium using equimolar/bimolar quantities of the ligand, at normal temperature. The products thus obtained are:
Mo2O3Cl5(C4H5NO2)2(C4H8O)2, [1]; Mo2O2Cl2(C4H5NO2)2(C4H8O)2, [2]; MoO2Cl2(H2NCH2CH2CH2CH2NH2)2, [3]; Mo3Cl8(C6H7N)4(C4H8O)2, [4]; Mo3Cl6(C6H7N)6(C4H8O)6, [5]; MoO2Cl3(H2NCH2CH2CH2NH2)2, [6]; Mo2O4Cl4(C3H4N2)4, [7] and Mo2O6Cl8(C5H11N)4, [8]. There is oxygen abstraction by molybdenum during the reaction from the oxygen containing solvent THF.
Formulations of these compounds were made and their properties were studied with FTIR(transmission mode), 1H NMR/13C NMR, microbiological studies, elemental analysis(Mo, Cl, C, H, N) and LC-MS. All preparations, separations and isolations were executed in vacuum line and inert atmosphere (dry nitrogen) to eliminate any oxidation/hydrolysis of products by air/moisture. The formulations proposed have been supported by the above characterization studies.

1, 3-diaminopropane; 1, 4-diaminobutane; 1-methylpyrrolidine; 3-methylpyridine; pyrazole

[ View HTML Full Text]