Abstract
Abstract Dihydrazido thiophosphoric acid phenyl ester, (NH2NH)2P(= S)-OC6H5 (DHTPPH), forms a 2:1 complex with manganese(II) chloride: [Mn(II)(DHTPPh)2Cl2], soluble in methanol. Solvolysis yields the corresponding methyl ester complex. With water in methanol the dihydrazidothiophosphato complex [Mn(II){(NH2NH)2P(= O)S}2] is formed. Monohydrazido thiophosphoric acid diphenyl ester NH2NH-P(= S)(OC6H5)2 (MHTPPh) gives various complexes with first row transition metals: [M(II)(MHTPPh)nX2], n = 2, 4; X = halogen. The nickel complex (n = 4; X = Cl) is characterized by elemental analysis and spectroscopic methods. MHTPPh is monodentate through the terminal N atoms of the hydrazido groups. Iron(II) and cadmium complexes have different compositions (n- 2; X = Cl) and therefore different structures, probably with MHTPPh as a bidentate chelate ligand.
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