(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2003). E59, o266-o268 [ doi:10.1107/S1600536803002411 ]

3-Benzoyl-2-hydroxy-2-methylchromene

M. Yogavel, D. Velmurugan, K. Sekar, H. Schenk, J. Fraanje, R. Peschar, S. Srinivasan, P. R. Athappan and Z. A. Rafi

Online 7 February 2003

Key indicators

Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.005 Å
R factor = 0.050
wR factor = 0.171
Data-to-parameter ratio = 9.0

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry

General Notes



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           74.88                 
         From the CIF: _reflns_number_total               1645                  
         Count of symmetry unique reflns         1649                           
         Completeness (_total/calc)             99.76%                          
         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.