Rudolph A. Marcus, Theoretical Chemist, Dies
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Rudolph A. Marcus, Theoretical Chemist, Dies

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Rudolph A. Marcus, a theoretical chemist known for his work explaining how electrons jump between molecules, has died. His calculations are fundamental to understanding the efficiency of batteries and solar cells.

According to *Nature*, Marcus’s calculations explain how the efficiency of electron transfer is affected by the distance between molecules and the surrounding environment. This understanding is crucial for designing more effective batteries and solar cells. The article, published online August 19, 2026, details his contributions to the field.

His work, known as Marcus theory, provides a framework for understanding the rates of electron transfer reactions. This has implications far beyond batteries and solar cells, impacting fields like photosynthesis and corrosion. The *Nature* obituary highlights the lasting impact of his research on multiple scientific disciplines.

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