Synthesis, crystal structure and hydrogenation properties of Mg_xLi_3 - xB_48 - y (x = 1.11, y = 0.40).

ABSTRACT: The ternary magnesium/lithium boride, Mg_xLi_3 - xB_48 - y (x = 1.11, y = 0.40, idealized formula MgLi₂B₄₈), crystallizes as its own structure type in P4₃2₁2, which is closely related to the structural family comprising α-AlB₁₂, Be_0.7Al_1.1B₂₂ and tetra-gonal β-boron. The asymmetric unit of title structure contains two statistical mixtures Mg/Li in Wyckoff sites 8b with relative occupancies Mg:Li = 0.495 (9):0.505 (9) and 4a with Mg:Li = 0.097 (8):0.903 (8). The boron atoms occupy 23 8b sites and two 4a sites. One of the latter sites has a partial occupancy factor of 0.61 (2). Both unique Mg/Li atoms adopt

SUBMITTER: Pavlyuk N 

PROVIDER: S-EPMC10833378 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature