Abstract The crystal structures of Na9Sn4 and Na15Sn4 have been determined. Na9Sn4 crystallizes orthorhombic, a=542 ±1, b = 939 ±2, c = 2962 ± 6 pm, isotypic with LigGe4. Na15Sn4 crystallizes cubic, a = 1314 ± 2 pm, isotypic with Na15Pb4 (Cu15Si4-type). The structural relationship of Na9Sn4 to the variants of the W-Structure type is shown.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.