Acta Cryst. (2002). E58, i117-i118  [ doi:10.1107/S1600536802019128 ]

Na₃Cr₂(AsO₄)₃: trisodium dichromium(III) triarsenate

B. Bouzemi, H. Boughzala and T. Jouini

Online 22 November 2002

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (As-O) = 0.002 Å
• R factor = 0.019
• wR factor = 0.039
• Data-to-parameter ratio = 12.0

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



ABSTM_02  Alert C The ratio of expected to reported Tmax/Tmin(RR) is > 1.10     
          Tmin and Tmax reported:      0.406     0.508                          
          Tmin and Tmax expected:      0.286     0.445                          
          RR =      1.243                                                       
          Please check that your absorption correction is appropriate.          

General Notes



ABSTM_02  When printed, the submitted absorption T values will be replaced      
          by the scaled T values. Since the ratio of scaled T's is              
          identical to the ratio of reported T values, the scaling does         
          not imply a change to the absorption corrections used in the          
          study.                                                                
          Ratio of Tmax expected/reported      0.875                            
          Tmax scaled      0.445 Tmin scaled      0.355                         

REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           29.88                 
         From the CIF: _reflns_number_total                216                  
         From the CIF: _diffrn_reflns_limit_ max hkl   17.   17.   10.          
         From the CIF: _diffrn_reflns_limit_ min hkl    0.    0.    0.          
         TEST1: Expected hkl limits for theta max                               
         Calculated maximum hkl   17.   17.   17.                               
         Calculated minimum hkl  -17.  -17.  -17.                               
          ALERT: Expected hkl max differ from CIF values                        


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 1 Alert Level C = Please check

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