期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1987
卷号：84
期号：11
页码：3537-3539
DOI：10.1073/pnas.84.11.3537
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：A structure is proposed for the hexagonal form of MnAl4, with aH = 28.4 A and cH = 12.43 A, on the basis of a high-resolution electron micrograph and comparison with crystals of known structures. The proposed structure involves seven 104-atom complexes of 20 Friauf polyhedra, sharing some atoms with one another. It is closely related to the 23.36-A cubic structure of MnAl4 and to the 14.19-A cubic structure of Mg32(Al,Zn)49.
关键词：icosahedral metal complexes ; Friauf polyhedra
