Materials Data on Pr2Y by Materials Project
Pr2Y is beta-derived structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Pr is bonded to nine equivalent Pr and three equivalent Y atoms to form PrPr9Y3 cuboctahedra that share corners with six equivalent YPr6Y6 cuboctahedra, corners with nine equivalent PrPr9Y3 cuboctahedra, edges with six equivalent YPr6Y6 cuboctahedra, edges with fifteen equivalent PrPr9Y3 cuboctahedra, faces with seven equivalent YPr6Y6 cuboctahedra, and faces with twelve equivalent PrPr9Y3 cuboctahedra. There are six shorter (3.67 Å) and three longer (3.81 Å) Pr–Pr bond lengths. All Pr–Y bond lengths are 3.63 Å. Y is bonded to six equivalent Pr and six equivalent Y atoms to form YPr6Y6 cuboctahedra that share corners with six equivalent YPr6Y6 cuboctahedra, corners with twelve equivalent PrPr9Y3 cuboctahedra, edges with six equivalent YPr6Y6 cuboctahedra, edges with twelve equivalent PrPr9Y3 cuboctahedra, faces with six equivalent YPr6Y6 cuboctahedra, and faces with fourteen equivalent PrPr9Y3 cuboctahedra. All Y–Y bond lengths are 3.67 Å.