Scattering functions of Platonic solids

作者：Li Xin; Shew Chwen Yang; He Lilin; Meilleur Flora; Myles Dean A A; Liu Emily; Zhang Yang; Smith Gregory S; Herwig Kenneth W; Pynn Roger; Chen Wei Ren^*

来源：Journal of Applied Crystallography, 2011, 44: 545-557.

DOI：10.1107/S0021889811011691

The single-particle small-angle scattering properties of five Platonic solids, including the tetrahedron, hexahedron, octahedron, dodecahedron and icosahedron, are systematically investigated. For each given geometry, the Debye spatial autocorrelation function, pair distance distribution function and intraparticle structure factor (form factor) are calculated and compared with the corresponding scattering function of a spherical reference system. From the theoretical models, the empirical relationship between the dodecahedral and icosahedral structural characteristics and those of the equivalent spheres is found. Moreover, the single-particle scattering properties of icosahedral and spherical shells with identical volume are investigated, and the prospect of using different data analysis approaches to explore their structural differences is presented and discussed.

• 出版日期2011-6