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Re: [sdpd] Re: the SbZn structure

>a=4.304 b=4.304 c=11.070
>alpha=beta=90 gamma=120 degree
>volume=177.59
>
>but cannot find the x,y,z ,Wyckoff.
>It seems that there are few research about it. :(

Continuing the search in COD :
Searching for cell parameters 4.1 < a < 4.5; 4.1 < b < 4.5; 10.87 < c 
< 11.27; 90 < alpha < 90; 90 < beta < 90; 120 < gamma < 120.

Four entries which are all Sb :

Formula : - Sb -
Comments : Akselrud, L. G.; Hanfland, M.; Schwarz, U. Refinement of 
the crystal structure of Sb-I, at 2.22 GPa Locality: synthetic 
Sample: at T = 295 K, P = 2.22 GPa Note: structure pertains to low 
pressure phase, Sb-I Zeitschrift fur Kristallographie 218 (2003) 414-414
Space group :R -3 m :H
Cell volume: 172.39
Cell parameters: 4.2687; 4.2687; 10.9244; 90; 90; 120


Formula : - Sb -
Comments : Jette, E. R.; Foote, F. Precision determination of lattice 
constants Locality: synthetic Sample: at T = 25C Note: sample 1 
Journal of Chemical Physics 3 (1935) 605-616
Space group :P 63/m m c
Cell volume: 180.126
Cell parameters: 4.2995; 4.2995; 11.2515; 90; 90; 120


Formula : - Sb -
Comments : Schiferl, D.; Barrett CS The crystal structure of arsenic 
at 4.2, 78 and 299 K Sample: T = 4.2 K Journal of Applied 
Crystallography 2 (1969) 30-36
Space group :R 3 m :H
Cell volume: 179.754
Cell parameters: 4.3007; 4.3007; 11.222; 90; 90; 120


Formula : - Sb -
Comments : Schiferl, D.; Barrett CS The crystal structure of arsenic 
at 4.2, 78 and 299 K Sample: T = 78 K Journal of Applied 
Crystallography 2 (1969) 30-36
Space group :R 3 m :H
Cell volume: 179.956
Cell parameters: 4.3012; 4.3012; 11.232; 90; 90; 120


Well, get the CIFs and try to insert some Zn in place od some Sb ?

Best wishes,

Armel


[Non-text portions of this message have been removed]



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