Acta Cryst. (2001). E57, o950-o952  [ doi:10.1107/S1600536801015100 ]

Octafluoronaphthalene-1,8-diaminonaphthalene (1/1)

A. S. Batsanov, J. C. Collings, J. A. K. Howard and T. B. Marder

Online 29 September 2001

Key indicators

• Single-crystal X-ray study
• T = 120 K
• Mean (C-C) = 0.003 Å
• R factor = 0.030
• wR factor = 0.083
• Data-to-parameter ratio = 6.5

checkCIF results

No syntax errors found


 Alert Level B:



PLAT_111  Alert B ADDSYM detects (pseudo) centre of symmetry ...         86 Perc Fit

PLAT_113  Alert B ADDSYM suggests Pseudo/New Spacegroup ........       P21/c

General Notes



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           27.48                 
         From the CIF: _reflns_number_total               2031                  
         Count of symmetry unique reflns         2040                           
         Completeness (_total/calc)             99.56%                          
         TEST3: Check Friedels for noncentro structure                          
         Estimate of Friedel pairs measured         0                           
         Fraction of Friedel pairs measured     0.000                           
         Are heavy atom types Z>Si present           no                         
          Please check that the estimate of the number of Friedel pairs is      
          correct. If it is not, please give the correct count in the           
          _publ_section_exptl_refinement section of the submitted CIF.          


 0 Alert Level A = Potentially serious problem

 2 Alert Level B = Potential problem

 0 Alert Level C = Please check

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