(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2002). E58, o484-o486 [ doi:10.1107/S1600536802005354 ]

5-Ethylbenzo[c]-1,5-naphthyridinium iodide

B. Marciniak, V. Pavlyuk and B. Dondela

Online 5 April 2002

Key indicators

Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.009 Å
R factor = 0.042
wR factor = 0.148
Data-to-parameter ratio = 16.5

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level B:



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           27.49                 
         From the CIF: _reflns_number_total               2586                  
         TEST2: Reflns within _diffrn_reflns_theta_max                          
         Count of symmetry unique reflns         3017                           
         Completeness (_total/calc)             85.71%                          
          Alert B: < 90% complete (theta max?)                                  


 Alert Level C:



PLAT_360  Alert C Short  C(sp3)-C(sp3) Bond  C(13)  -   C(14)  =       1.39 Ang.


 0 Alert Level A = Potentially serious problem

 1 Alert Level B = Potential problem

 1 Alert Level C = Please check