But Denchfield didn't stop there. He started to explore whether other rare earth hydride combinations and structures, such as replacing lutetium with its periodic-table cousins yttrium and ...

An N-heterocyclic carbene (NHC) ligand supports a stable [Ni 2 H] + core, formally dinickel(I). This diamagnetic cation complex features a bent hydride bridge and a Ni···Ni distance, 2.9926(5) Å, ...