Group News

Welcome to Majed!    

August 2019

We are happy to welcome Majed Fataftah to the Holland Group! Majed just completed his Ph.D. with Danna Freedman at Northwestern University, and we are looking forward to his upcoming work on iron-nitrogen research here at Yale.

 
 

New grant from DOE

July 2019

We are gratified that the U.S. Department of Energy has chosen to fund our project “Tandem Catalytic C-H Activation and N2 Activation Using Iron Complexes.” This grant, starting Sept. 1, will support Sam’s continued work on a project started by Sean and Danny, which uses atmospheric N2 to form organic compounds. Onward and upward!

Loads of summer students

July 2019

We are pleased to be hosting a number of summer visitors this summer. We have four rising Yale sophomores, Alex Saczawa, David Gallagher, Peter Cappaert, and Will Wang. In addition, Anna Conley is visiting from Carleton College. Finally, Dan DiPrimio is continuing his undergraduate research with us with support from a Rosenfeld Science Scholarship. It is fun working with all of them!

Double trouble with sulfides

June 2019

Two excellent papers on Dan DeRosha’s work with new iron-sulfide clusters are now coming out in the literature. One (in Inorganic Chemistry) describes a new two-iron cluster that serves as a precursor to a variety of cluster shapes, including an unusual 10-iron cluster. The other (in Nature Chemistry) gives details on one of the product cluster types, which has a flat 4-iron shape that is new in iron chemistry. This unusual shape leads the central Fe site to have only three bonds but have a low-spin electronic configuration, which defies simple expectations but can be understood using spectroscopic and computational contributions from our collaborators Serena DeBeer, Frank Neese, and Eckhard Bill. This cluster is also capable of breaking N-N bonds in hydrazine, which mimics one activity of nitrogenase. A real tour de force!

DeRosha wins Wolfgang Prize

May 2019

Congratulations to Dan DeRosha, whose recently accepted Ph.D. thesis earned him a Wolfgang Prize that is awarded to the top Ph.D. theses for the chemistry department each year. This is a huge and well-deserved honor for Dan. Great work, Dan!

New papers are out

May 2019

Congratulations to DK on the appearance of his new paper on the mechanisms of alkene cross-coupling reactions, which was published in J. Am. Chem. Soc. This paper was a substantial achievement that was the fruit of a lot of careful thinking and experimentation, combined with computations by our collaborator Rinaldo Poli from Toulouse, France. In addition, Sam’s Minireview of N-N bond splitting chemistry appeared in Eur. J. Inorg. Chem. Great job, Sam!

Congratulations to Dr. Sean McWilliams!

March 2019

Congratulations to Sean McWilliams, who defended his Ph.D. thesis. Sean has been an amazing leader and contributor to the group and department, and we thank him for his years of dedication and fun in the group. Sean will be continuing his academic training this summer in the group of Jillian Dempsey at UNC. We wish Sean the best!

NIH grant funded

February 2019

Our NIH grant proposal on Fe-catalyzed HAT (hydrogen atom transfer) alkene reactions was funded by the NIH. Congratulations to DK, Conner, and Josef, whose hard work and careful editing made the grant proposal great. Onward and upward!

Congratulations to Dr. Dan DeRosha!

January 2019

Congratulations to Dan on the completion of his PhD! Dan has accomplished a wide range of iron and cobalt chemistry in his time with us, and has become one of our most valuable players. Dan will be continuing his academic journey in a postdoctoral position with Jonathan Owen at Columbia later this spring. Great job and best wishes, Dan!

Welcome to new group members

December 2018

Welcome to the three graduate students who have just joined the Holland Group! We are excited to start working with Jessica Armstrong, Reagan Hooper, and Ken Xie in the coming years.

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