(IUCr) Crystallography Journals Online checkcif report

Acta Cryst. (2003). E59, o535-o537 [ doi:10.1107/S1600536803006019 ]

(S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl, a versatile chelating ligand

M. D. Jones, F. A. Almeida Paz, J. E. Davies and B. F. G. Johnson

Online 31 March 2003

Key indicators

Single-crystal X-ray study
T = 180 K
Mean (C-C) = 0.004 Å
R factor = 0.042
wR factor = 0.088
Data-to-parameter ratio = 12.8

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry

General Notes



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           25.06                 
         From the CIF: _reflns_number_total               5303                  
         Count of symmetry unique reflns         3045                           
         Completeness (_total/calc)            174.15%                          
         TEST3: Check Friedels for noncentro structure                          
         Estimate of Friedel pairs measured      2258                           
         Fraction of Friedel pairs measured     0.742                           
         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.