synthesis and characterisation of μ3-η2-alkynyl triruthenium clusters, [Ru3(μ3-η2-R1-4-C6H4CCR2)(μ-dppm)(μ-CO)(CO)7] (1, saturated), [Ru3(μ3-η2-R1-4-C6H4CCR2)(μ-dppm)(CO)7] (2, unsaturated) and [Ru3(μ3-η2-R1-4-C6H4CCR2)(μ-dppm)(PPh3)(CO)7] (3, saturated) containing symmetrical and asymmetrical alkynes in which R1 and R2 are electron donor or electron withdrawing groups in the para position of the aromatic
合成和表征μ 3 -η 2 -炔基羰基三
钌簇的[Ru 3(μ 3 -η 2 -R 1 -4-C 6 H ^ 4 CCR 2)(μ-
DPPM)(μ-CO)(CO)7 ](1,饱和的),的[Ru 3(μ 3 -η 2 -R 1 -4-C 6 H ^ 4 CCR 2)(μ-
DPPM)(CO)7 ](2,不饱和的)和的[Ru 3( μ 3 -η 2 -R 1 -4-C6 H 4 CCR 2)(μ-
DPPM)(PPh 3)(CO)7 ](3,饱和的)包含对称和不对称
炔烃,其中R 1和R 2是电子供体或吸电子基团,位于对位报道了芳环或R 2为
二茂铁基。从[P
PN] [Ru 3(μ-Cl)(CO)10 ]与R 1 -4-C 6 H 4 CCR 2和
DPPM的反应获得簇1。集群1除了稳定的含FcCCC 6 H 4 -4-NO 2的簇外,α-己内酰胺成功地脱羰形成了不牢固的簇2。通过将PPh 3添加到不饱和