近期，科研人员发现了一种含有四配位氧的金属蝴蝶簇合物，打破了之前氧在有机金属簇合物中最高三配位的记录。现在，他们报道了合成与表征一种五金属氧氯簇合物(FexRu3(CO)14(μ4-O)2-)，该簇合物可能呈现四配位或五配位的氧原子，分别位于正方形基底平面或作为顶点。这一发现扩展了我们对低氧化态有机金属簇合物中杂原子配位几何的理解。
摘要：
Main-group heteroatoms in low oxidation state organometallic cluster compounds are generally found in either interior positions or on the periphery as part of the cluster skeleton. Organometallic clusters containing the oxo ligand are much less numerous than organometallic carbides, nitrides, and sulfides. Until recently the highest coordination number of oxygen in an organometallic cluster was three. Recently we found four-coordinate oxygen in a metal butterfly cluster. We now describe the synthesis and characterization of a five-metal oxo cluster, (Fe{sub 2}Ru{sub 3}(CO){sub 14}({mu}{sub 4}-O)){sup 2{minus}}. The five-metal environment presents the possibility of a five-coordinate heteroatom which is situated nearly in the square-basal plane, or a four-coordinate heteroatom capping the square base.
展开
扫一扫
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
