Acta Cryst. (2002). E58, m53-m54  [ doi:10.1107/S1600536802000818 ]

Bis[dicarbonyl(cyclopentadienyl)ferrio]mercury(II)

J. S. McIndoe and B. K. Nicholson

Online 25 January 2002

Key indicators

• Single-crystal X-ray study
• T = 203 K
• Mean (C-C) = 0.014 Å
• R factor = 0.037
• wR factor = 0.100
• Data-to-parameter ratio = 17.8

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level A:



ABSTM_02  Alert A Crystal and compound unsuitable for non-numerical             
          corrections. Product of mu and tmid > 3.0                             
           Value of mu given =    12.705 tmid =     0.480                       

General Notes



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           28.30                 
         From the CIF: _reflns_number_total               1726                  
         Count of symmetry unique reflns         1070                           
         Completeness (_total/calc)            161.31%                          
         TEST3: Check Friedels for noncentro structure                          
         Estimate of Friedel pairs measured       656                           
         Fraction of Friedel pairs measured     0.613                           
         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

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