Mixed-Metal Cluster Chemistry. 31. Reactions of Dimolybdenum–Diiridium Clusters with Alkylidyne Complexes
收藏Figshare2016-02-21 更新2026-04-29 收录
下载链接：
https://figshare.com/articles/dataset/Mixed_Metal_Cluster_Chemistry_31_Reactions_of_Dimolybdenum_Diiridium_Clusters_with_Alkylidyne_Complexes/2532928
下载链接
链接失效反馈官方服务：
资源简介：
Reactions of the tetrahedral clusters Mo2Ir2(μ-CO)3(CO)7(η5-L)2 (L = C5H5, C5HMe4) with the molybdenum alkylidyne complex Mo(CC6H4OMe-4)(CO)2{(N2C3H3)3BH-κ3N,N′,N″} afford the pentanuclear clusters Mo3Ir2(μ4-C)(μ3-CC6H4OMe-4)(μ-O)(CO)6{(N2C3H3)3BH-κ3N,N′,N″}(η5-C5H5)2 (1; 62%) and Mo3Ir2(μ3-CC6H4OMe-4)(μ3-η2-CO)(μ-CO)(CO)6{(N2C3H3)3BH-κ3N,N′,N″}(η5-C5Me4H)2 (2; 65%), respectively, while the reaction of Mo2Ir2(μ-CO)3(CO)7(η-C5H5)2 with W(CCCSiMe3)(CO)2{(N2C3H3)3BH-κ3N,N′,N″} yields the butterfly cluster Mo2Ir2(μ4-η2-SiMe3C2CW(CO)2{(N2C3H3)3BH-κ3N,N′,N″})(μ-CO)4(CO)4(η5-C5H5)2 (3; 60%). The identities of 1–3 have been confirmed by single-crystal X-ray diffraction studies. Cluster 1 contains μ4-carbido and μ-oxido ligands resulting from CO cleavage. Cluster 2, with sterically more encumbering tetramethylcyclopentadienyl ligands that arrest CO cleavage, possesses a μ3-η2-CO ligand with a weak CO bond (1.272(7), 1.257(7) Å). Cluster 2 could not be converted into an analogue of cluster 1. The reaction with alkyne is more facile than the reaction with alkylidyne; cluster 3 results from addition of the CC bond (rather than the WC bond) across the Mo–Mo vector.
创建时间：
2016-02-21
