Crystal structure refinement of Nd2−xCexCuOrm4 (x = 0.05−0.30) by x-ray (295 K) and neutron (1.5 K) powder diffraction

1990 ◽  
Vol 73 (11) ◽  
pp. 791-795 ◽  
Author(s):  
E.F. Paulus ◽  
I. Yehia ◽  
H. Fuess ◽  
J. Rodriguez ◽  
T. Vogt ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Powder Diffraction ◽  
Structure Refinement ◽  
Crystal Structure Refinement ◽  
X Ray

Crystal structure of potassium tetraperoxomolybdate (VI) K2[Mo(O2)4]

2005 ◽  
Vol 20 (3) ◽  
pp. 203-206 ◽  
Author(s):  
M. Grzywa ◽  
M. Różycka ◽  
W. Łasocha
Keyword(s):  
Crystal Structure ◽  
Low Temperature ◽  
Diffraction Pattern ◽  
Powder Diffraction ◽  
Rietveld Method ◽  
Structure Refinement ◽  
Crystal Structure Refinement ◽  
Unit Cell Parameters ◽  
X Ray ◽  
Cell Parameters

Potassium tetraperoxomolybdate (VI) K2[Mo(O2)4] was prepared, and its X-ray powder diffraction pattern was recorded at low temperature (258 K). The unit cell parameters were refined to a=10.7891(2) Å, α=64.925(3)°, space group R−3c (167), Z=6. The compound is isostructural with potassium tetraperoxotungstate (VI) K2[W(O2)4] (Stomberg, 1988). The sample of K2[Mo(O2)4] was characterized by analytical investigations, and the results of crystal structure refinement by Rietveld method are presented; final RP and RWP are 9.79% and 12.37%, respectively.

Crystal structure refinement of A-type carbonate apatite by X-ray powder diffraction

2010 ◽  
Vol 45 (9) ◽  
pp. 2419-2426 ◽  
Author(s):  
Toru Tonegawa ◽  
Toshiyuki Ikoma ◽  
Tomohiko Yoshioka ◽  
Nobutaka Hanagata ◽  
Junzo Tanaka
Keyword(s):  
Crystal Structure ◽  
Powder Diffraction ◽  
Structure Refinement ◽  
Carbonate Apatite ◽  
Crystal Structure Refinement ◽  
X Ray
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