Electronic spectra of MoO3S2⊖ and WO3S2⊖ and their comparison with the spectra of the ions MoOx S2⊖ 4-x and WOx S2⊖ 4-x

The electronic spectra of MoO3S2⊖ and WO3S2⊖ are measured in aqueous solution. They are discussed and compared with electronic spectra of other thiomolybdates and -tungstates.