(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2002). E58, o256-o258 [ doi:10.1107/S1600536802002337 ]

(3S,2R)-3-Hydroxy-2-hydroxymethyl-7,9-diazaspiro[4.5]decane-6,8,10-trione

M.-T. Averbuch-Pouchot, A. Durif, A. Renard, M. Kotera and J. Lhomme

Online 8 February 2002

Key indicators

Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.002 Å
R factor = 0.039
wR factor = 0.044
Data-to-parameter ratio = 12.5

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



PLAT_162  Alert C Missing or Zero su (esd) on y-coordinate for .       O2

General Notes



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           35.00                 
         From the CIF: _reflns_number_total               2187                  
         Count of symmetry unique reflns         2191                           
         Completeness (_total/calc)             99.82%                          
         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.          


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 1 Alert Level C = Please check