Thioethers neutral moieties

Polyaromatic ethers coordinated to CpFe+ moieties have also been prepared via sequential S Ar reactions of chloroarene complexes with hydroquinone (189). The electrochemical behavior of cationic aromatic ether, thioether, and sul-fone complexes of cyclopentadienyliron has been studied using cyclic voltammetry and coulometry (190). Reaction of the aromatic ether complexes with sodium cyanide resulted in the formation of neutral adducts which imder-went oxidative demetallation to give the corresponding organic aromatic nitriles (191). 

Photolysis of polymers 51a-f (Scheme 15) resulted in loss of the CpFePFs moieties, and polymers 52a-f, containing only neutral ferrocene groups in their backbones, were isolated. This methodology represents a new route to the production of ferrocene-based polymers containing aryl ether and thioether spacers. 

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