The Mismatch between Photochemical Reactivity and Molecular Absorptivity. It was a long-held belief in photochemistry that the color of a photoactive compound was the best guide to achieve the most ef

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The Mismatch between Photochemical Reactivity and Molecular Absorptivity. It was a long-held belief in photochemistry that the color of a photoactive compound was the best guide to achieve the most efficient photochemical reaction. For example, if a molecule appeared blue, then complementary orange light was the optimum excitation source. Recently, our team has upended this paradigm. Our findings that maximum absorptivity (color) and maximum reaction efficiency are not necessarily congruent has far-reaching consequences for all production process that involve photochemical reactions, from 3D printing to surface curing, as much milder light sources can be used than previously thought. This project will investigate the underpinning cause of the mismatch and enable us to predict photochemical reactivity.. Scheme: Discovery Projects. Field: 3406 - Physical Chemistry. Lead: Prof Christopher Barner-Kowollik