Acta Cryst. (2011). E67, m611-m612  [ doi:10.1107/S1600536811013808 ]

Diaqua(2,2'-bipyridine-²N,N')bis(perchlorato-O)copper(II)

M. Damous, M. Hamlaoui, S. Bouacida, H. Merazig and J.-C. Daran

Online 16 April 2011

Key indicators

• Single-crystal X-ray study
• T = 296 K
• Mean (C-C) = 0.002 Å
• R factor = 0.030
• wR factor = 0.080
• Data-to-parameter ratio = 21.6

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) .....          4      
PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L=  0.600          2      
PLAT912_ALERT_4_C Missing # of FCF Reflections Above STh/L=  0.600        288      

Alert level G
PLAT128_ALERT_4_G Alternate Setting of Space-group P21/c   .......      P21/n      
PLAT232_ALERT_2_G Hirshfeld Test Diff (M-X)  Cu1    --  O1W     ..       5.83 su   
PLAT794_ALERT_5_G Note: Tentative Bond Valency for Cu1     (II)          2.29      

   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
   3 ALERT level G = General information/check it is not something unexpected

   0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   1 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
   2 ALERT type 4 Improvement, methodology, query or suggestion
   1 ALERT type 5 Informative message, check

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