(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2001). E57, o904-o905 [ doi:10.1107/S1600536801014374 ]

(1R,6S,7R)-Himachal-2-ène-6,7-diol

H. E. Jamili, A. Auhmani, M. Dakir, A. Benharref, E. Kossareva and M. Pierrot

Online 11 septembre 2001

Key indicators

Single-crystal X-ray study
T = 298 K
Mean (C-C) = 0.004 Å
R factor = 0.046
wR factor = 0.117
Data-to-parameter ratio = 10.4

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level A:



EXPT_002  Alert A _exptl_crystal_density_meas is missing, although a method     
          has been given. Density measured experimentally (Mg m-3).             
          The following tests will not be performed.                            
          DENSX_01                                                              


 Alert Level B:



DENSM_01  Alert B _exptl_crystal_density_method is given but no value of        
          _exptl_crystal_density_meas is reported.                              


 Alert Level C:



CRYSC_01  Alert C The word below has not been recognised as a standard          
          identifier.                                                           
          incolore                                                              

CRYSC_01  Alert C No recognised colour has been given for crystal colour.       

General Notes



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           25.60                 
         From the CIF: _reflns_number_total               1554                  
         Count of symmetry unique reflns         1582                           
         Completeness (_total/calc)             98.23%                          
         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.          


 1 Alert Level A = Potentially serious problem

 1 Alert Level B = Potential problem

 2 Alert Level C = Please check