Calcium–Rhodium–Hydride –- Synthese und Struktur

Calcium Rhodium Hydrides –- Synthesis and Structure The two ternary hydrides Ca₈Rh₅H₂₃ and Ca₈Rh₆H₂₄ can be synthesised by reacting calcium hydride with rhodium in a hydrogen atmosphere. X-ray investigations on powder samples and elastic neutron diffraction experiments on the deuterated compounds led to the complete structures. Both hydrides crystallise in cubic structure types representing a transition from the K₂PtCl₆ type to the perovskit type structure. The rhodium deuterium bond lengths and the atomic volume of deuterium were discussed.