Hydride complexes
Complexes coordinated by hydride ligands are called hydride complexes.
The Group 6 to 10 transition metals that do not form binary hydrides give many hydride
complexes with auxiliary ligands such as carbonyl and tertiaryphosphines. Although it
was only at the end of the 1950s that hydride was accepted as a ligand, thousands of
hydride complexes are known at present. Furthermore, with the synthesis in the 1980’s of
molecular hydrogen complexes, the chemistry of transition metal hydrogen compounds
took a new turn. Research on the homogeneous catalysis of hydrocarbons in which
hydride or dihydrogen complexes participate is also progressing.