Trinuclear Tungsten Halide Clusters

These clusters have also been described as incomplete metallacubanes, lacking only a fourth metal that would bond to the three bridging ligands p-L. Tritungsten clusters with pa-halides are rare, and monocapped group 6 clusters with exclusively halides were unknown before our research. In contrast, perhalo trinuclear clusters are more common for the nearby elements Re, Nb, and Ta.  

Department of Chemistry, The University of Iowa, Iowa City, lA 52242. 

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