George Sheldrick 1942–2025

Mechanisms" (Universitt Gttingen, 2025).Sheldrick's most enduring legacy is the SHELX suite of programs for crystal-structure solution and refinement.First released in the 1970s for small-molecule analysis and later extended to macromolecular methods via direct, Patterson and dualspace techniques, SHELX underpins modern structure determination ranging from mineral and structural chemistry to macromolecular crystallography.His landmark paper, "A Short History of SHELX" (Sheldrick, 2008), is credited with elevating Acta Crystallographica Section A to an impact factor that surpassed