Tracking Reactions? AFM FTW

Thanks to @slugnads at Wired for pointing out this story!
Update 5/31/13 - Derek's also got a great review going at Pipeline.

Remember 2009, when you gasped for a moment at the beautiful IBM structure of pentacene? 

Credit: BBC News | IBM | Science

In 2012, just in time for the 2012 London Olympics, the same team helped to image "olympicene."

Credit: BBC | IBM

And now, just 5 months into 2013, a team of researchers from UC-Berkeley / LBNL and several physics institutes in Spain have watched cyclizations occur on silver surfaces, using AFM tips to detect the ghostly products in stunning resolution:

Credit: Science | LBNL | UC-Berkeley | Wired

HOLY. COW.

As if this couldn't sound any more amazing, the researchers were able to predict and visualize several products previously predicted by theory, but never directly observed (stabilized diradicals, anyone?). 

So, will this be a standard technique for the practicing chemist? I'm guessing not for quite a few years, since the hardware involved still isn't commonplace, and the technique probably works best at prohibitively high dilutions with flat molecules. Med chem? Sure, you could watch a Suzuki coupling occur, or watch a Cope rearrangement, but for "3D" molecules (read: alkaloids, vitamins, sugars, etc...) I think NMR and X-ray crystallography will still be your best bets. 

But to paraphrase the futurists, predictions ironically suffer from poor foresight - after all, just over a month ago, a Japanese group disclosed how to take on-demand crystal structures of just about anything. So, I'm sure someone will invent a "rugged" surface capable of guiding the AFM tip around points and curves to monitor, say, real-time Pictet-Spengler reactions. Can't wait!

Friday Fun: John Hartwig, 2.0

Did I just see a GQ model pop up in my Inbox?

Source: Yale University

The email just dropped in to announce Prof. John Hartwig's receipt of the 2013 ACS Catalysis Lectureship. Kudos to him, he certainly deserves it! Over the past few years, I've truly enjoyed reading his explorations of Ir and Ni catalysis to achieve challenging transformations.

But the shocking part was the photo crop in the upper left corner...what a change! The "Hartwig" I have in my head, circa 2004, was this guy (right). Suit, tie, some distinguished grey in the temples, a demure smile.

But who's this, now? Check out the older, wiser Hartwig, stolen off his new group page at UC-Berkeley (left). What a change!

Source: UC-Berkeley

Gone are the glasses, the bookshelves, and the formal tie. Now we have a slightly more grizzled, more wistful JH, hair scattered by the wind, looking like he could take on the world.

I fully approve.

Happy Friday,
SAO