Organometallic polynorbomenes

A second method for the synthesis of organometallic polynorbomenes containing a bound azo dye involved the reaction of T -chlorotoluene- n -cyclopentadienyliion complex 21 with bifunctional azo dyes to yield the azo dye-containing organoiron compounds, which wctc then further reacted with 5-norbomene-2-carboxylic acid (16) to form the azo dye functionalized norbomene monomers, 24, shown in Scheme 7.7. 

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