| Sulfur-based ligands are electronically and structurally versatile. The sulfur analogs of many classically phosphine-based ligands have been investigated over the last decades and have been found to sometimes serve as air-stable alternatives to the latter. Selenium and Tellurium, the heavier homologs of sulfur, are more potent donor ligands than their sulfur-containing relatives. They hold promise for tailor-made reactivity enabled by chalcogen-based pincer ligands. | |