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The First Table of Atomic Site Coordinates of the Ih QC (2)

已有 441 次阅读 2026-10-17 12:10 |个人分类:AEC 原子环境计算|系统分类:论文交流

The First Table of Atomic Site Coordinates of the Ih QC (2)

https://doi.org/10.5281/zenodo.23426598

The First Table of Atomic Site Coordinates of the Ih Quasicrystal | Zenodo

The First Table of Atomic Site Coordinates of the QC (n=1 to 6)

     In the International Tables for Space Groups, set a=b=c=1.  Similarly in the first table, R=0.951056516295154d; set d=1. A regular icosahedron (QC with n=1) located in Cartesian coordinate frame of reference: origin is at the center of QC, i.e., |P000|=0. Z axis coincides with one five-fold axis (C5); Y axis coincides with one two-fold axis (C2), X axis passes through the triangle but does not coincide with any three-fold axis (C3). Any atom-site position vector at nth shell of QC cell can be expressed as Puvw=uRa + vRb + wRc, where u, v, w are positive integers, can be called site index of QC (Ih), and must satisfy a restriction condition as u + v + w = n, where n being integers and ≥1, it denotes the number of shells of QC (Ih).  Ra, Rb and Rc are the three basis vectors for QC (n=1) [4]. In the table, all sites with a degeneracy of 2 are marked with the symmetry code "m".

2-Screenshot 2026-10-16 195647.png

2-Screenshot 2026-10-16 200415.png

2-Screenshot 2026-10-16 200516.png

对整个点阵,层内(同一个n)最近邻点位距离为 1, 层间(不同的n之间)最近邻点位距离为0.951056516295154。这是判定一个点阵是不是Ih点群点阵的一个基本条件。

原子点位的笛卡尔坐标如下:

"n+v+w=n","   u v w","Degeneracy"

"u+v+w=",2,":",2,0,0,"Deg=",10

"u+v+w=",2,":",1,1,0,"Deg=",4

"u+v+w=",2,":",1,0,1,"Deg=",4

"u+v+w=",2,":",0,2,0,"Deg=",10

"u+v+w=",2,":",0,1,1,"Deg=",4

"u+v+w=",2,":",0,0,2,"Deg=",10

"Number of the Sites on the Shell =",6

"Site: u,v,w=",2,0,0

"dist of the site from the center of QC,|Puvw|=",1.90211303259031

"   x=",0

"   y=",0

"   z=",1.90211303259031

"Site: u,v,w=",1,1,0

"dist of the site from the center of QC,|Puvw|=",1.6180339887499

"   x=",.850650808352039

"   y=",0

"   z=",1.37638192047117

"Site: u,v,w=",1,0,1

"dist of the site from the center of QC,|Puvw|=",1.61803398961639

"   x=",.262865557989286

"   y=",.809016992972924

"   z=",1.37638192194535

"Site: u,v,w=",0,2,0

"dist of the site from the center of QC,|Puvw|=",1.90211303259031

"   x=",1.70130161670408

"   y=",0

"   z=",.850650808352042

"Site: u,v,w=",0,1,1

"dist of the site from the center of QC,|Puvw|=",1.61803399015192

"   x=",1.11351636634133

"   y=",.809016992972924

"   z=",.850650809826216

"Site: u,v,w=",0,0,2

"dist of the site from the center of QC,|Puvw|=",1.90211303259031

"   x=",.525731115978572

"   y=",1.61803398594585

"   z=",.85065081130039

"n+v+w=n","   u v w","Degeneracy"

"u+v+w=",3,":",3,0,0,"Deg=",10

"u+v+w=",3,":",2,1,0,"Deg=",2

"u+v+w=",3,":",2,0,1,"Deg=",2

"u+v+w=",3,":",1,2,0,"Deg=",2

"u+v+w=",3,":",1,1,1,"Deg=",6

"u+v+w=",3,":",1,0,2,"Deg=",2

"u+v+w=",3,":",0,3,0,"Deg=",10

"u+v+w=",3,":",0,2,1,"Deg=",2

"u+v+w=",3,":",0,1,2,"Deg=",2

"u+v+w=",3,":",0,0,3,"Deg=",10

"Number of the Sites on the Shell =",10

"Site: u,v,w=",3,0,0

"dist of the site from the center of QC,|Puvw|=",2.85316954888546

"   x=",0

"   y=",0

"   z=",2.85316954888546

"Site: u,v,w=",2,1,0

"dist of the site from the center of QC,|Puvw|=",2.47801865906762

"   x=",.850650808352039

"   y=",0

"   z=",2.32743843676633

"Site: u,v,w=",2,0,1

"dist of the site from the center of QC,|Puvw|=",2.47801866019918

"   x=",.262865557989286

"   y=",.809016992972924

"   z=",2.3274384382405

"Site: u,v,w=",1,2,0

"dist of the site from the center of QC,|Puvw|=",2.47801865906762

"   x=",1.70130161670408

"   y=",0

"   z=",1.8017073246472

"Site: u,v,w=",1,1,1

"dist of the site from the center of QC,|Puvw|=",2.26728394384743

"   x=",1.11351636634133

"   y=",.809016992972924

"   z=",1.80170732612137

"Site: u,v,w=",1,0,2

"dist of the site from the center of QC,|Puvw|=",2.47801866019918

"   x=",.525731115978572

"   y=",1.61803398594585

"   z=",1.80170732759554

"Site: u,v,w=",0,3,0

"dist of the site from the center of QC,|Puvw|=",2.85316954888546

"   x=",2.55195242505612

"   y=",0

"   z=",1.27597621252806

"Site: u,v,w=",0,2,1

"dist of the site from the center of QC,|Puvw|=",2.47801866089853

"   x=",1.96416717469336

"   y=",.809016992972924

"   z=",1.27597621400224

"Site: u,v,w=",0,1,2

"dist of the site from the center of QC,|Puvw|=",2.47801866089853

"   x=",1.37638192433061

"   y=",1.61803398594585

"   z=",1.27597621547641

"Site: u,v,w=",0,0,3

"dist of the site from the center of QC,|Puvw|=",2.85316954888546

"   x=",.788596673967858

"   y=",2.42705097891877

"   z=",1.27597621695059

"n+v+w=n","   u v w","Degeneracy"

"u+v+w=",4,":",4,0,0,"Deg=",10

"u+v+w=",4,":",3,1,0,"Deg=",2

"u+v+w=",4,":",3,0,1,"Deg=",2

"u+v+w=",4,":",2,2,0,"Deg=",4

"u+v+w=",4,":",2,1,1,"Deg=",2

"u+v+w=",4,":",2,0,2,"Deg=",4

"u+v+w=",4,":",1,3,0,"Deg=",2

"u+v+w=",4,":",1,2,1,"Deg=",2

"u+v+w=",4,":",1,1,2,"Deg=",2

"u+v+w=",4,":",1,0,3,"Deg=",2

"u+v+w=",4,":",0,4,0,"Deg=",10

"u+v+w=",4,":",0,3,1,"Deg=",2

"u+v+w=",4,":",0,2,2,"Deg=",4

"u+v+w=",4,":",0,1,3,"Deg=",2

"u+v+w=",4,":",0,0,4,"Deg=",10

"Number of the Sites on the Shell =",15

"Site: u,v,w=",4,0,0

"dist of the site from the center of QC,|Puvw|=",3.80422606518062

"   x=",0

"   y=",0

"   z=",3.80422606518062

"Site: u,v,w=",3,1,0

"dist of the site from the center of QC,|Puvw|=",3.38705417066211

"   x=",.850650808352039

"   y=",0

"   z=",3.27849495306148

"Site: u,v,w=",3,0,1

"dist of the site from the center of QC,|Puvw|=",3.38705417190392

"   x=",.262865557989286

"   y=",.809016992972924

"   z=",3.27849495453566

"Site: u,v,w=",2,2,0

"dist of the site from the center of QC,|Puvw|=",3.23606797749979

"   x=",1.70130161670408

"   y=",0

"   z=",2.75276384094235

"Site: u,v,w=",2,1,1

"dist of the site from the center of QC,|Puvw|=",3.07768353882343

"   x=",1.11351636634133

"   y=",.809016992972924

"   z=",2.75276384241652

"Site: u,v,w=",2,0,2

"dist of the site from the center of QC,|Puvw|=",3.23606797923279

"   x=",.525731115978572

"   y=",1.61803398594585

"   z=",2.7527638438907

"Site: u,v,w=",1,3,0

"dist of the site from the center of QC,|Puvw|=",3.38705417066211

"   x=",2.55195242505612

"   y=",0

"   z=",2.22703272882322

"Site: u,v,w=",1,2,1

"dist of the site from the center of QC,|Puvw|=",3.07768353910497

"   x=",1.96416717469336

"   y=",.809016992972924

"   z=",2.22703273029739

"Site: u,v,w=",1,1,2

"dist of the site from the center of QC,|Puvw|=",3.07768353956052

"   x=",1.37638192433061

"   y=",1.61803398594585

"   z=",2.22703273177157

"Site: u,v,w=",1,0,3

"dist of the site from the center of QC,|Puvw|=",3.38705417190392

"   x=",.788596673967858

"   y=",2.42705097891877

"   z=",2.22703273324574

"Site: u,v,w=",0,4,0

"dist of the site from the center of QC,|Puvw|=",3.80422606518061

"   x=",3.40260323340816

"   y=",0

"   z=",1.70130161670408

"Site: u,v,w=",0,3,1

"dist of the site from the center of QC,|Puvw|=",3.38705417267139

"   x=",2.8148179830454

"   y=",.809016992972924

"   z=",1.70130161817826

"Site: u,v,w=",0,2,2

"dist of the site from the center of QC,|Puvw|=",3.23606798030384

"   x=",2.22703273268265

"   y=",1.61803398594585

"   z=",1.70130161965243

"Site: u,v,w=",0,1,3

"dist of the site from the center of QC,|Puvw|=",3.3870541726714

"   x=",1.6392474823199

"   y=",2.42705097891877

"   z=",1.70130162112661

"Site: u,v,w=",0,0,4

"dist of the site from the center of QC,|Puvw|=",3.80422606518061

"   x=",1.05146223195714

"   y=",3.2360679718917

"   z=",1.70130162260078

准晶体一层(n=2),一层(n=3),一层(n=4)地平移向外扩展,一直到充满整个空间,始终要保持层内最近邻距离为1, 层间最近邻距离为0.951056516295154。始终保持这个条件,直到充满整个空间,这就是满足Ih点群对称性的空间点阵。



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