Article ID Journal Published Year Pages File Type
1340251 Polyhedron 2009 6 Pages PDF
Abstract

The synthesis and characterization of two new heterotetrametallic complexes are described. Reaction of [Cr(CO)3(η6-C6H5)CC-{(η5-C5H4)Fe(η5-C5H5)}](1) with Co2(CO)8 or Cp2Mo2(CO)4 afford the heterotetrametallic complexes [Cr(CO)3(η6-C6H5){Co2(CO)6-μ2-η2-CC–}(η5-C5H4)Fe(η5-C5H5)}](2), and [Cr(CO)3(η6-C6H5){Mo2Cp2(CO)4-μ2-η2-CC–}(η5-C5H4)Fe(η5-C5H5)](3) in 80% and 41% yield, respectively. All complexes have been characterized by elemental analysis, multinuclear (1H, 13C) NMR, and by single-crystal X-ray diffraction studies for 1 and 3. Structural data reveal that the coordination of dimolybdenum moiety to the alkyne unit influence the orientation of the carbonyl groups coordinated to the chromium as well as the Cp rings bound to the iron metal centre.

Graphical abstractThe compounds Co2(CO)8 and Cp2Mo2(CO)4 readily react with [Cr(CO)3(η6-C6H5)CC-{(η5-C5H4)Fe(η5-C5H5)}](1) to give new heterotetrametallic complexes [Cr(CO)3(η6-C6H5){Co2(CO)6-μ2-η2-CC–}(η5-C5H4)Fe(η5-C5H5)}](2), and [Cr(CO)3(η6-C6H5){Mo2Cp2(CO)4-μ2-η2-CC–}(η5-C5H4)Fe(η5-C5H5)](3).Figure optionsDownload full-size imageDownload as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemistry Inorganic Chemistry
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