Synthesis and Crystal Structures of New Sulfido/oxo-molybdenum Complexes (Et4N)2MoO(S4)(bdtX2)and (Et4N)2Mo2O2(μ2-S)2(bdtX2) (X=H and Cl)
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Abstract
Substitution of (Et4N)2MoIVO(S4)2 in acetonitrile with mole ratio(1:1) 1,2-benzenedithiol (H2bdt) and 3,6-dichloro-1,2-benzenedithiol (H2bdtCl2) gave mono(dithiolene)oxo-molybdenum(IV) complexes (Et4N)2MoO(S4)(bdtX2) (X=H, 1; X=Cl, 2). Treatment of 1 and 2 with additional equimolar amount of 1,2-arenedithiol in warm acetonitrile afforded bis(µ-sulfido)dimolybdenum(V) species (Et4N)2Mo2O2(μ2-S)2(bdtX2)2 (X=H, 3;X=Cl, 4). All four complexes were characterized spectroscopically with UV- 3000 spectrophotometer, of which complexes 2, 3 and 4 have been further determined with single-crystal X-ray diffraction. Results show the synisomers are formed referring to the position of the apical oxo ligands with respect to the Mo2S2 plane.
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