Acta Cryst. (2003). E59, o550-o552  [ doi:10.1107/S1600536803006524 ]

3,5-Dinitroxytricyclo[2.2.1.0^2,6]heptane

S. Öztürk, B. Büyükkidan, M. Akkurt, O. Çakmak and H.-K. Fun

Online 31 March 2003

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.005 Å
• R factor = 0.046
• wR factor = 0.112
• Data-to-parameter ratio = 6.6

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry

General Notes



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           25.98                 
         From the CIF: _reflns_number_total                485                  
         Count of symmetry unique reflns          487                           
         Completeness (_total/calc)             99.59%                          
         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.          

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