Science Magazine

DiRocco’s Electrochemical Series of Photocatalysts

Posted on the 30 December 2014 by Brsm @BRSM_blog

So, if you've been reading the chemical literature much in the last 5 years or so, you've probably noticed the ongoing explosion of papers on the topic of Photoredox chemistry. It seems that organic chemists in the field have been borrowing increasingly bizarre transition metal complexes from the electroluminescence, photophysical and materials literature for some time now, and keeping track of them all is a real pain. I mean, how many people can draw from memory the structure of that Bernhard Ir(4',6'-dF-5-CF3-ppy)2(4,4'-dtbbpy)PF6 catalyst from the latest MacMillan group paper? Don't look at me like that—it's commercially available from Aldrich.[1] And you can remember its oxidation potential, right? Versus the Saturated Calomel Electrode? In the Ir(iii)* excited state and as Ir(iv) after reductive quenching?

Well, if this isn't your area of expertise, help is at hand. A friend recently emailed me this handy series of common photocatalysts apparently assembled by Daniel DiRocco at Merck,[2] which I thought it would be worth sharing more widely. Hopefully DiRocco won't mind – it's pretty darn useful and I've seen it a couple of places online already.

DiRocco Electrochemical Series

Electrochemical Series compiled by Daniel DiRocco of Merck. Click for large PNG image.*

*Alternatively, here's a better quality version as a PDF. I hear it looks nice printed to A3 if you can manage it.

1. You'll probably want to make it, though, as it's not far off $1/mg.

2. You probably saw him most recently as lead author on that awesome Merck photoredox-Minisci heterocycle alkylation paper in Angewandte earlier in the year: Daniel A. DiRocco et al.Angew. Chem. Int. Ed. 2014, 53, 4802 –4806.

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By Chromatography
posted on 08 May at 10:35
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Well done. Thanks for your sharing!