| Abstract: | Transition Metal Complexes of 1,1,3,3-Tetrakis(dimethylamino)-1λ5,3λ5-Diphosphete 1,1,3,3-Tetrakis(dimethylamino)-1λ5,3aλ5-diphosphete, 1 , reacts with W(CO)6 to yield the isomeric complexes {1,1,3,3-tetrakis(dimethylamino)-1λ5,3λ5-diphosphete}(pentacarbonyl)tungsten 4 and {1,1,3,3-tetrakis(dimethylamino)-1,4-dihydro-1λ5,3λ5-1,3]diphosphetium}(pentacarbonyl)tungsten 5 . With Cr(CO)6 the complex {1,1,3,3-tetrakis(dimethylamino)-1λ5,3λ5-diphosphete}(pentacarbonyl)chromium 6 is formed. From the reaction products of Fe3(CO)12 and Fe2(CO)9 with 1 the complex {1,1,3,3-tetrakis(dimethylamino)-1λ5,3λ5-diphosphete}(pentacarbonyl)iron 7 could be isolated. Properties, nmr, ir and mass spectra of the new compounds are reported. 6 and 7 were characterized by X-ray structure determinations. |
