Sensitized photoreduction of cobalt(II) and iron(II). Structural characterization of 2)2PF6

Article abstract of DOI:10.1016/0022-328X(89)85264-7

Triplet-state ketones readily sensitized the photoreduction of bis(acetylacetonato)cobalt(II) or Co_solv²⁺ under atmospheric pressure of carbon monoxide to give Co(CO)4^-.The low-valent cobalt could be trapped and isolated as phosphine-substituted metal carbonyl complexes.The crystal structure of one of the products, 2)2>PF6 has been determined.It is orthorhombic, space group Pbca, Z=8, with unit cell dimensions a 19.704(5), b 24.850(13), c 21.865(9) Angstroem.Phosphine-substituted iron(0) carbonyl complexes have also been isolated from similar photoreductions of iron(II) species.