(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2003). E59, o445-o446 [ doi:10.1107/S1600536803004938 ]

2,2,6,6-Tetramethyl-4-oxopiperidinium trifluoroacetate

S. Breitung, H.-W. Lerner and M. Bolte

Online 14 March 2003

Key indicators

Single-crystal X-ray study
T = 173 K
Mean (C-C) = 0.004 Å
R factor = 0.049
wR factor = 0.141
Data-to-parameter ratio = 12.1

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           25.16                 
         From the CIF: _reflns_number_total               1215                  
         TEST2: Reflns within _diffrn_reflns_theta_max                          
         Count of symmetry unique reflns         1281                           
         Completeness (_total/calc)             94.85%                          
          Alert C: < 95% complete                                               


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 1 Alert Level C = Please check