作者:Heinrich Lang、Michael Leise、Laszlo Zsolnai
DOI:10.1016/0022-328x(91)83011-r
日期:1991.6
6-tBu3C6H2O)(PhCC)PCl, I, by Co2(CO)8, II, yields the neutral phosphenium ion complex [(R)(R′)]P=Co(CO)3, III, (R = 2,4,6-tBu3C6H2O; R′ = (η2-C≡CPh)Co2(CO)6), which contains a trigonally planar coordinated phosphorus atom. When NaCo(CO)4, V, is used instead of II a dinuclear complex, Co2(CO)6[μ2-P(R)(R′)]2, VI, (R = 2,4,6-tBu3C6H2O; R′ = C≡CPh) is formed in which the phosphido ligands P(R)(R′), bridge in a μ2 fashion
(氯)(苯基乙炔基)膦(2,4,6- t Bu 3 C 6 H 2 O)(PhCC)PCl,I通过Co 2(CO)8,II还原脱卤,得到中性离子络合物[(R)(R')] p = CO(CO)3,III,(R = 2,4,6-吨卜3 c ^ 6 ħ 2 O; R'=(η 2 -C≡CPh) Co 2(CO)6),其包含三角形平面配位的磷原子。当的NaCo(CO)4,V,来代替II双核配合物,钴2(CO)6 [μ 2 -P(R)(R')]2,VI,(R = 2,4,6-吨卜3 c ^ 6 ħ 2 O; R'=C≡CPh)形成,其中所述配体膦P(R)(R'),桥在μ 2制作两个Co(CO)3个单位。讨论了VI的形成机理,其中涉及两个[[(2,4,6- t Bu 3 C 6 H 2 O)(PhC≡C)] P = Co(CO)3片段的形式二聚化。然而,(吨卜)(PhC≡C)PCL,VII,与II反应,以产生簇化合物VIII,含有两种μ