Sophus Mads Jørgensen

Sophus Mads Jørgensen was a Danish chemist who made significant contributions to the field of coordination chemistry in the 19th century. He worked extensively on preparing and characterizing numerous coordination compounds, providing crucial experimental data that supported the development of chemical theories.1

Jørgensen's work, alongside Christian Wilhelm Blomstrand, laid the groundwork for Alfred Werner's groundbreaking coordination theory, which revolutionized the understanding of how metal atoms bond with ligands. Jørgensen proposed that atoms or groups that dissociated into ions in solution were bonded through an ammonia chain, while those that did not were bonded directly to the metal ion. While Werner's theory ultimately superseded Jørgensen's, his extensive experimental contributions were fundamental to the advancement of coordination chemistry.1