Acta Cryst. (2002). E58, o1145-o1146  [ doi:10.1107/S1600536802016975 ]

1,4,5,8-Tetramethoxyanthracene

J. W. Springer, T. A. Moore, A. L. Moore, D. Gust and T. L. Groy

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.002 Å
• R factor = 0.052
• wR factor = 0.140
• Data-to-parameter ratio = 17.0

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level A:



DIFF_019  Alert A _diffrn_standards_number is missing                           
          Number of standards used in measurement.                              

DIFF_020  Alert A _diffrn_standards_interval_count and                          
          _diffrn_standards_interval_time are missing. Number of measurements   
          between standards or time (min) between standards.                    


 2 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 0 Alert Level C = Please check

Copyright © International Union of Crystallography
IUCr Webmaster