Crystal structure refinement of Maya Blue pigment prepared with deuterated indigo, using neutron powder diffraction

2006 ◽  
Vol 18 (5) ◽  
pp. 629-640 ◽  
Author(s):  
Roberto Giustetto ◽  
Davide Levy ◽  
Giacomo Chiari
Keyword(s):  
Crystal Structure ◽  
Powder Diffraction ◽  
Structure Refinement ◽  
Neutron Powder Diffraction ◽  
Blue Pigment ◽  
Crystal Structure Refinement ◽  
Maya Blue

Crystal structure refinement of a sepiolite/indigo Maya Blue pigment using molecular modelling and synchrotron diffraction

2011 ◽  
Vol 23 (3) ◽  
pp. 449-466 ◽  
Author(s):  
Roberto Giustetto ◽  
Davide Levy ◽  
Olivia Wahyudi ◽  
Gabriele Ricchiardi ◽  
Jenny G. Vitillo
Keyword(s):  
Crystal Structure ◽  
Molecular Modelling ◽  
Structure Refinement ◽  
Blue Pigment ◽  
Crystal Structure Refinement ◽  
Synchrotron Diffraction ◽  
Maya Blue

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.

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