Structure studies molybdenum alkenes

Transition metal complexes of unsaturated 1,2-dithiolates (metal dithiolenes) have attracted much attention because of their interesting structural and redox properties.169 Molybdenum dithiolene complexes have featured prominently170 in these studies and have special significance following the suggestion171,172 that the molybdenum-containing cofactor of the oxomolybdoen-zymes (Section 36.6.7) incorporates a molybdenum complex of an unsymmetrically substituted alkene-1,2-dithiolate. 

Having considered the incorporation of alcohols into polyoxoanion frameworks as alkoxide groups, we now turn to their transformation into aldehydes or ketones (oxidation) and alkenes (dehydration). As above, the selection of the polyoxoanion system to be studied was dictated in part by analogies with molybdenum trioxide chemistry. Molybdenum trioxide has a layer structure [21], and the structure of a single M0O3 layer is shown in 16. 

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