Acta Cryst. (2002). E58, o1177-o1179  [ doi:10.1107/S160053680201766X ]

L-Citrullinium perchlorate

B. Sridhar, N. Srinivasan, B. Dalhus and R. K. Rajaram

Online 30 September 2002

Key indicators

• Single-crystal X-ray study
• T = 105 K
• Mean (C-C) = 0.001 Å
• R factor = 0.023
• wR factor = 0.068
• Data-to-parameter ratio = 32.1

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



PLAT_354  Alert C Short   O-H Bond (0.82A)   O(1B)  -   H(1)   =       0.70 Ang.

General Notes



REFLT_03                                                                        
         From the CIF: _diffrn_reflns_theta_max           37.49                 
         From the CIF: _reflns_number_total               5866                  
         Count of symmetry unique reflns         3382                           
         Completeness (_total/calc)            173.45%                          
         TEST3: Check Friedels for noncentro structure                          
         Estimate of Friedel pairs measured      2484                           
         Fraction of Friedel pairs measured     0.734                           
         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.          


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 1 Alert Level C = Please check

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