Acta Cryst. (2012). E68, m445  [ doi:10.1107/S1600536812010161 ]

catena-Poly[[triaquacopper(II)]-₂-furan-2,5-dicarboxylato-⁴O¹,O²:O²,O^2']

Y.-F. Li, Y. Gao, Y. Xu, X. Qin and W.-Y. Gao

Online 17 March 2012

Key indicators

• Single-crystal X-ray study
• T = 296 K
• Mean (C-C) = 0.003 Å
• R factor = 0.031
• wR factor = 0.070
• Data-to-parameter ratio = 12.9

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor ....        2.7      
PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) .....          3      
PLAT912_ALERT_4_C Missing # of FCF Reflections Above STh/L=  0.600          3      

Alert level G
PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite         10      
PLAT004_ALERT_5_G Info: Polymeric Structure Found with Dimension .          1      
PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF ....          ?
PLAT794_ALERT_5_G Note: Tentative Bond Valency for Cu1     (II)          2.09      
PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints .......         10      

   0 ALERT level A = Most likely a serious problem - resolve or explain
   0 ALERT level B = A potentially serious problem, consider carefully
   3 ALERT level C = Check. Ensure it is not caused by an omission or oversight
   5 ALERT level G = General information/check it is not something unexpected

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

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