Tungsten clusters multiple bonds

Fig. 6.23 Tungsten-tungsten bond lengths as a function of bond order. Each of the points represents the mean and range of several values. See Chapter 16 for discussion of multiple bonds in metal clusters.

Tungsten coordination has recently been comprehensively reviewed in Comprehensive Coordination Chemistry, particularly in the areas of mononuclear complexes, dinu-clear species containing single and multiple W-W bonds, polyoxometaUate synthesis, structure, and reactivity, and chalcogen-containing cluster complexes. ... 

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