Eu₂Li(C₃)H: A Carbide Hydride Phase Incorporating Eu².

ABSTRACT: Reactions between carbon and lithium hydride in a mixed metal europium/lithium flux led to the synthesis of Eu₂Li(C₃)H. At room temperature, the compound crystallizes in the tetragonal space group P4/mbm (no. 127, Z = 2; Ca₂Li(C₃)H type) and undergoes a second-order structural phase transition below ∼250 K to an orthorhombic low-temperature modification (no. 55, Pbam; Z = 4), crystallizing in a new structure type. The phase transition was monitored by using single-crystal X-ray diffraction (SCXRD) and temperature-dependent high-resolution powder diffraction data. Infrared (IR) spectroscopy and gaschromatographic analysis (GC) of the hydrolysis products confirm the existence of a first europium compound with an a

SUBMITTER: Kleinoder T 

PROVIDER: S-EPMC12856907 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature