Professor Todd J. Martínez

Professor Todd J. Martínez

Department of Chemistry and The PULSE Institute

Stanford University

Abstract

Discovering Chemistry and Photochemistry From First Principles Molecular Dynamics

Novel computational architectures and methodologies are revolutionizing diverse areas ranging from video gaming to advertising and espionage. In this talk, I will discuss how these tools and ideas can be exploited in the context of theoretical and computational chemistry. I will discuss how insights gleaned from recommendation systems (such as those used by Netflix and Amazon) can lead to reduced scaling methods for electronic structure (solving the electronic Schrodinger equation to describe molecules) and how the algorithms in electronic structure can be adapted for commodity stream processing architectures such as graphical processing units. I will show how these advances can be harnessed to progress from traditional “hypothesis-driven” methods for using electronic structure and first principles molecular dynamics to a “discovery-driven” mode where the computer is tasked with discovering chemical reaction networks. Finally, I will show how these can be combined with force-feedback (haptic) input devices and three-dimensional visualization to create molecular model kits that carry complete information about the underlying electrons. This interactive first principles molecular dynamics method (molecular computer-aided design or mCAD) opens the door to novel ways of teaching chemistry and may also be of use in applied chemical research.

Todd J. Martínez

Todd Martínez received his B. S. in Chemistry from Calvin College in 1989 and his Ph.D. in Chemistry from the University of California at Los Angeles in 1994. From 1994 to 1996, he was a Fulbright Junior Postdoctoral Researcher at Hebrew University in Jerusalem and a University of California President’s Postdoctoral Fellow at UCLA. In 1996, he joined the faculty in the Department of Chemistry at the University of Illinois. He rose through the ranks to become the Gutgsell Chair in Chemistry. In 2009, he was recruited to join the faculty at Stanford University and the SLAC National Accelerator Laboratory, where he is currently David Mulvane Ehrsam and Edward Curtis Franklin Professor.

Professor Martínez’ research lies in the area of theoretical chemistry, emphasizing the development and application of new methods which accurately and efficiently capture quantum mechanical effects of both electrons and nuclei. He pioneered the use of commodity videogame technology for computational chemistry and ab initio molecular dynamics. He has also developed new conceptual frameworks for understanding chemical reactivity induced by external force, i.e. “mechanochemistry.”

Professor Martínez has received fellowships and/or awards from the Camille and Henry Dreyfus Foundation, the Alfred P. Sloan Foundation, the Arnold and Mabel Beckman Foundation, the David and Lucille Packard Foundation, and the John D. and Catherine T. MacArthur Foundation. Professor Martínez is an elected fellow of the American Physical Society, the American Association for the Advancement of Science, the American Academy of Arts and Sciences, the International Academy of Quantum Molecular Science and the National Academy of Sciences.

Start date
Thursday, April 20, 2023, 9:45 a.m.
End date
Thursday, April 20, 2023, 11:15 a.m.
Location

331 Smith Hall

Zoom Link

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