Abstract:
Substitution of (Et
4N)
2Mo
IVO(S
4)
2 in acetonitrile with mole ratio(1:1) 1,2-benzenedithiol (H
2bdt) and 3,6-dichloro-1,2-benzenedithiol (H
2bdtCl
2) gave mono(dithiolene)oxo-molybdenum(IV) complexes (Et
4N)
2MoO(S
4)(bdtX
2) (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 (Et
4N)
2Mo
2O
2(μ
2-S)
2(bdtX
2)
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 Mo
2S
2 plane.