(CO)6Fe2μ-EC(Ph)CC(OR)(OMe)2E‘} (16−19) (R = CH3, C2H5) were formed. All compounds were characterized by IR and 1H, 13C, 77Se, and 125Te NMR spectroscopies. Crystallographic analysis of the compound Fe2(CO)6μ-SC(Ph)CC(OCH3)2(OC2H5)Te} (17) established its structure as a Fe2STe tetrahedral butterfly core containing the ortho ester unit, C(Ph)CC(OCH3)2(OC2H5)} as a bridge between the two wing-tip chalcogens.
从过渡
金属炔费卡宾络合物(CO)的室温下反应5中号C(OET)(C⋮CPH)(M =的Cr,W)与homochalcogenide化合物的Fe 2(CO)6(μ-E 2) (E = S,
硒,
碲),获得了以下新的三
金属加合物:[(CO)6的Fe 2 ë 2 μ-PHC CC(OET)} M(CO)5 ](1 - 5 ; 1,30 %,E = S,M =
铬; 2,85%,E =
硒,M =
铬; 3,85%,E =
硒中,M = W; 4,28%,E =
碲,M =
铬; 5,25%,E = Te,M = W)。烷氧基容易由
氨基取代在加合物2,3和5在室温下为顺式和反异构体,[(CO)6的Fe 2 ë 2 μ-PHC CCN(H)R} M(CO)5 ](syn - 8a - f和anti - 8a - f;其中R = CH 3,CH 2 Ph,CH 2 CH CH 2),产率70-90%。当[(CO)6