(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2002). E58, m650-m652 [ doi:10.1107/S1600536802018779 ]

catena-Poly[-trifluoroacetato-O:O'-dimethylphenyltin(IV)]

M. M. Amini, S. H. Abadi, M. Mirzaee, T. Lügger, F. E. Hahn and S. W. Ng

Key indicators

Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.006 Å
R factor = 0.020
wR factor = 0.051
Data-to-parameter ratio = 14.1

checkCIF results

No syntax errors found



ADDSYM reports no extra symmetry


 Alert Level A:



TYPE_089  Alert A _refine_ls_abs_structure_Flack is not of type numb.           

General Notes



FORMU_01  There is a discrepancy between the atom counts in the                 
          _chemical_formula_sum and _chemical_formula_moiety. This is           
          usually due to the moiety formula being in the wrong format.          
          Atom count from _chemical_formula_sum:   C10 H11 F3 O2 Sn1            
          Atom count from _chemical_formula_moiety:                             

REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           26.00                 
         From the CIF: _reflns_number_total               2465                  
         Count of symmetry unique reflns         1443                           
         Completeness (_total/calc)            170.82%                          
         TEST3: Check Friedels for noncentro structure                          
         Estimate of Friedel pairs measured      1022                           
         Fraction of Friedel pairs measured     0.708                           
         Are heavy atom types Z>Si present          yes                         
          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.          


 1 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 0 Alert Level C = Please check