Acta Cryst. (2008). E64, m413  [ doi:10.1107/S1600536808002043 ]

catena-Poly[[[diaquairon(II)]--pyridine-2,5-dicarboxylato-[tetraaquairon(II)]--pyridine-2,5-dicarboxylato] tetrahydrate]

H.-Y. Xu, H.-L. Ma, M.-T. Xu, W.-X. Zhao and B.-G. Guo

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.004 Å
• R factor = 0.043
• wR factor = 0.125
• Data-to-parameter ratio = 12.0

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT041_ALERT_1_C Calc. and Rep. SumFormula Strings    Differ ....          ?
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT045_ALERT_1_C Calculated and Reported Z Differ by ............       2.00 Ratio

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   3 ALERT level C = Check and explain
   0 ALERT level G = General alerts; check

   3 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   0 ALERT type 2 Indicator that the structure model may be wrong or deficient
   0 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

Copyright © International Union of Crystallography
IUCr Webmaster