Welcome to Penn Chemistry

Penn Chemistry is composed of a dynamic community of researchers creating and disseminating new knowledge at the forefront of the chemical sciences. As an enabling science, chemistry is at the focal point of every important modern societal challenge. Our faculty and students engage these challenges daily on a local, national, and international scale.


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The Activities for Community Education in Science (ACES) program, started by graduate...

Jeffrey Winkler has been elected to the John Morgan Society of the University of Pennsylvania....

Chemistry major Moses Adenaike received the NOBCChE Bayer Undergraduate Fellowship. As part of...

Assistant Professor Jessica M. Anna, who joined the department earlier this year, has been named...

Research Highlight

M.I. Lester


Earth’s atmosphere is a complicated dance of molecules. The chemical output of plants, animals and human industry rise into the air and pair off in sequences of chemical reactions. Such processes help maintain the atmosphere’s chemical balance; for example, some break down pollutants emitted from the burning of fossil fuels.

Understanding exactly how these reactions proceed is critical for predicting how the atmosphere will respond to environmental changes, but some of the steps of this dance are so quick that all of the molecules involved haven’t been measured in the wild.


Even Lerner writes about a study led by Marsha I. Lester, Edmund J. Kahn Distinguished Professor, that led to a publication in Science. Read more about it here.

Department of Chemistry

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