The PI

Silas Cook

Education: B.A. Reed College (1999); Ph.D. Columbia University (2006); Postdoctoral Fellow Harvard University (2006-2008)










Postdoctoral Associates: None currently

Graduate Students


Brian Groendyke

Education: B.A. DePauw University (2012)
Advisor: Prof. Jeff Hansen
Year: 5th


Thomas Atack

Education: B.S. Emory University (2007)
Advisor: Prof. José Soria
Year: 5th

Originally from Mishawaka, Indiana, Brian received his Bachelor's degree in Chemistry and Spanish from DePauw University. There he worked under the direction of Prof. Jeff Hansen on the optimization of a tandem aldol/epoxidation reaction. Brian joined the Cook group in 2012 and is currently working on the development of a general C–H functionalization strategies.


Originally from Nashville, TN Thomas Atack received his B.S. in Chemistry at Emory University in 2007. Upon graduation, Thomas returned to Nashville and began working at Vanderbilt University Medical Center under Dr. Dan Roden where he studied the regulation of the human cardiac sodium channel and analyzed mouse models of human arrhythmias. In 2012, Thomas joined the Cook group and is currently working on new borylation strategies.

Deyaa AbuSalim

Education: B.S./M.S. Illinois State University (2011/2014)
Advisor: Prof. Timothy Lash
Year: 3rd


Daisy Rosas Vargas

Education: B.S. U.C. San Diego (2013)
Advisor: NA
Year: 3rd

Originally from Abu Dhabi, U.A.E., Deyaa AbuSalim obtained his B.S. (2011) and M.S. (2014) in Chemistry from Illinois State University. While at ISU, Deyaa pursued research under Prof. Timothy D. Lash where he worked on the synthesis and metalation of dicarbaporphyrinoid systems, as well as applying DFT methods to better understand porphyrinoid characteristics. Deyaa joined the Cook group in 2014 and is currently pursuing novel palladium reactivity.



Originally from Pasadena, California, Daisy Rosas received her B.S. in Chemistry at the University of California, San Diego in 2013. Upon graduation, she began working in the medicinal chemistry department of Genomic Institute of the Novartis Research Foundation (GNF) where she worked on the SAR of pyrimidine scaffolds for a drug target for autoimmune diseases. Daisy joined the Cook group in 2014.

Paul Marcyk

Education: B.A. Wheaton College (2013)
Advisor: Prof. M. Thandi Buthelezi
Year: 3rd




Originally from Portland, Oregon Paul received his Bachelor's degree in Chemistry from Wheaton College in 2013. There, he briefly worked in the lab of M. Thandi Buthelezi studying guest host interaction between cyclodextrin and spiropyran. He also spent a summer as a food science intern at the Oregon State University Food Innovation Center. In 2014, Paul joined the Cook group and is currently exploring N-alkylation with unactivated alcohols.



Undergraduate Researchers

Natan Sojko (2017)

Jenna Bingham (2018)

Julie Simon (2019)















Former Members