Reaction of H2 with IrHCl2P2 (P double bonded to PiPr3 or PtBu2Ph): stereoelectronic control of the stability of molecular H2 transition metal complexes

An economical source of hydrogen forms a metal hydride under wild conditions when the hydrogen is split heterolytically. The splitting is categorized by the presence of molecular H2 to be Bronsted-acidic. Coordinated H2 is known to quickly dissociate, disallowing the intracellular molecular rearrangement in d octahedra. Hydrogen binds with five-coordinate substructures, varying in equilibrium constants. The varying lengths of the bonding H2 are caused by a reduction in the strength of the sigma bond. The reducing power of the bonding fragments also vary.