Add like
Add dislike
Add to saved papers

Polysubstituted ferrocenes as tunable redox mediators.

A series of four ferrocenyl ester compounds, 1-methoxycarbonyl- ( 1 ), 1,1'-bis(methoxycarbonyl)- ( 2 ), 1,1',3-tris(methoxycarbonyl)- ( 3 ) and 1,1',3,3'-tetrakis(methoxycarbonyl)ferrocene ( 4 ), has been studied with respect to their potential use as redox mediators. The impact of the number and position of ester groups present in 1 - 4 on the electrochemical potential E 1/2 is correlated with the sum of Hammett constants. The 1 / 1 + - 4 / 4 + redox couples are chemically stable under the conditions of electrolysis as demonstrated by IR and UV-vis spectroelectrochemical methods. The energies of the C=O stretching vibrations of the ester moieties and the energies of the UV-vis absorptions of 1 - 4 and 1 + - 4 + correlate with the number of ester groups. Paramagnetic 1 H NMR redox titration experiments give access to the chemical shifts of 1 + - 4 + and underline the fast electron self-exchange of the ferrocene/ferrocenium redox couples, required for rapid redox mediation in organic electrosynthesis.

Full text links

We have located links that may give you full text access.
Can't access the paper?
Try logging in through your university/institutional subscription. For a smoother one-click institutional access experience, please use our mobile app.

For the best experience, use the Read mobile app

Mobile app image

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app

All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.

By using this service, you agree to our terms of use and privacy policy.

Your Privacy Choices Toggle icon

You can now claim free CME credits for this literature searchClaim now

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app