Stoddart Mechanostereochemistry Group





Stoddart Mechanostereochemistry Group



William R. Dichtel

Research Associate

Hometown: United States

Joined group: 2005

Left group: 2008


2000 - BS Chemistry
Massachusetts Institute of Technology

2005 - PhD Chemistry
University of California, Berkeley
Advisor: Prof. Jean M. J. Fréchet

2005 - Present
Joint research appointment with Prof. Stoddart and Prof. James R. Heath at the California Institue of Technology.


Miljanić, O. Š.; Dichtel, W. R.; Khan, S. I.; Mortezaei, S.; Heath, J. R.; Stoddart, J. F. “Structural and Co-conformational Effects of Alkyne-Derived Subunits in Charged Donor-Acceptor [2]Catenanes” J. Am. Chem. Soc. 2007, 129, 8236-8246. [Link]

Braunschweig, A. B.; Dichtel, W. R.; Miljanić, O. Š; Olson, M. A.; Spruell, J. M.; Khan, S. I.; Heath, J. R.; Stoddart, J. F. “Modular Synthesis and Dynamics of a Variety of Donor-Acceptor Interlocked Compounds Prepared by a Click Chemistry Approach.” Chem. Asian J. 2007, 2, 634-647. [Link]
(Highlighted by Angew. Chem. Int. Ed. 2007, 46, 3606.)

Aprahamian, I.; Yasuda, T.; Ikeda, T.; Saha, S.; Dichtel, W. R.; Isoda, K.; Kato, T.; Stoddart, J. F. “Mesogenic Bistable [2]Rotaxanes.” Angew. Chem. Int. Ed. 2007, 46, 4675-4679. [Link]

Aprahamian, I.; Dichtel, W. R.; Ikeda, T.; Heath, J. R.; Stoddart, J. F. “A Clicked Bistable [2]Rotaxane.” Org. Lett. 2007, 9, 1287-1290. [Link]

Dichtel, W. R.; Heath, J. R.; Stoddart, J. F. “Designing Bistable [2]Rotaxanes for Molecular Electronic Devices.” Phil. Trans. R. Soc. London Ser. A. 2007, 365, 1607-1625. (invited review) [Link]

Miljanić, O. Š.; Dichtel, W. R.; Mortezaei, S.; Stoddart, J. F. “Cyclobis(paraquat-p-phenylene)-based [2]Catenanes Prepared by Kinetically Controlled Reactions Involving Alkynes.” Org. Lett. 2006, 8, 4835-4838. [Link]

Dichtel, W. R.; Miljanić, O. Š.; Spruell, J. M.; Heath, J. R.; Stoddart, J. F. “Efficient Templated Synthesis of Donor-Acceptor Rotaxanes Using Click Chemistry.” J. Am. Chem. Soc. 2006, 128, 10388-10390. [Link]
(Highlighted as one of the most accessed JACS publications from July–September 2006 and as an ACS Hot Paper in May 2007)

Dichtel, W. R.; Baek, K.-Y.; Fréchet, J. M. J.; Rietveld, I. B.; Vinogradov, S. A. “Amphiphilic Diblock Star Polymer Catalysts via Atom Transfer Radical Polymerization.” J. Polym. Sci., Part A: Polm. Chem. 2006, 44, 4939-4951. [Link]

Oar, M. A.; Dichtel, W. R.; Serin, J. M.; Fréchet, J. M. J.; Rogers, J. E.; Slagle, J. E.; Fleitz, P. A.; Tan, L. S.; Ohulchanskyy, T. Y.; Prasad, P. N. “Light-harvesting Chromophores with Metalated Porphyrin Cores for Turned Photosensitization of Singlet Oxygen via Two-Photon Excited FRET.” Chem. Mater., 2006, 18, 3682-3692. [Link]

Dichtel, W. R.; Hecht, S.; Fréchet, J. M. J. “Functionally Layered Dendrimers: A New Tetravalent Building Block and its Application to Multichromophoric Light Harvesting Systems.” Org. Lett., 2005, 7, 4451-4454. [Link]

Oar, M. A.; Serin, J. M.; Dichtel, W. R.; Tao, Y.; Helms, B. A.; Fréchet, J. M. J.; Ohulchanskyy, T. Y.; Prasad, P. N. “Photosensitization of Singlet Oxygen via Two-Photon Excited FRET in Aqueous Media.” Chem. Mater., 2005, 17, 2267-2275. [Link]
(Highlighted as one of the most-cited articles in Chemistry of Materials from 2005)

Dichtel, W. R.; Serin, J. M.; Edder, C.; Fréchet, J. M. J.; Mastuszewski, M.; Tan, L.-S.; Ohulchanskyy, T. Y.; Prasad, P. N. “Singlet Oxygen Generation via Two-Photon Excited FRET.” J. Am. Chem. Soc. 2004, 126, 5380-5381. [Link]


I was born in Houston, Texas, but spent most of my impressionable years growing up in Roanoke, Virginia. Roanoke is known as the “Star City of the South” and features the world’s second largest man-made star, lit up every night for your viewing pleasure.

I left Roanoke for bigger and better things at MIT, where I majored in chemistry and had the pleasure of getting my first research experience working in the laboratory of Prof. Tim Swager. During my time in Boston I developed a taste for the local cuisine and an obsession with the Red Sox that continues to this day. Despite my love for all things New England, I moved west to UC-Berkeley for graduate school, and greatly enjoyed my time earning my Ph.D. working alongside the extraordinary people of Prof. Jean M. J. Fréchet’s group.

I’d been a swimmer my whole life and I took up ocean swimming when I moved to California. When I lived in Berkeley, I would wake up early in the morning to swim in the frigid waters of the San Francisco Bay. I have made the swim from Alcatraz more than a dozen times, swam north to Marin directly underneath the Golden Gate Bridge, and from Candlestick Park all the way around the peninsula to the west end of Fisherman’s Wharf. If you are in the Bay Area, check out the South End Rowing Club, a group of swimmers with ice water in their veins. Now that I’ve moved south to Los Angeles, I’m getting to know a new set of ocean landmarks and training for longer distances in cold water.

I also love to cook, especially on my new toy, a Weber charcoal grill. I spend the rest of my time with my beautiful wife, Laura, debating which breed(s) of dog(s) we will eventually adopt.


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