Femtosecond Soft X-ray Absorption Spectroscopy Identifies Metal-Centered S 1 Excited State of Cyanocobalamin - Nahid Ghodrati; Luigi Adriano; Samuel M. Berry; Cammille Carinan; Robert Carley; Yi-Ping Chang; Cyril Danilevski; Christian David; Robin Engel; Natalia Gerasimova; David Hammer; Manuel Harder; et al. (Journal of the American Chemical Society, 2026)