Acta Cryst. (2011). E67, o833  [ doi:10.1107/S160053681100821X ]

N,N'-Bis(5-bromopyridin-2-yl)methanediamine

G. S. Nichol, A. Sharma and H.-Y. Li

Online 9 March 2011

Key indicators

• Single-crystal X-ray study
• T = 100 K
• Mean (C-C) = 0.002 Å
• R factor = 0.019
• wR factor = 0.051
• Data-to-parameter ratio = 19.4

checkCIF/PLATON results

No syntax errors found




Alert level G
PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite          2      
PLAT128_ALERT_4_G Alternate Setting of Space-group C2/c    .......      I2/a       
PLAT164_ALERT_4_G Nr. of Refined C-H H-Atoms in Heavy-Atom Struct.          4      
PLAT764_ALERT_4_G Overcomplete CIF Bond List Detected (Rep/Expd) .       1.11 Ratio
PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints .......          1      

   0 ALERT level A = Most likely a serious problem - resolve or explain
   0 ALERT level B = A potentially serious problem, consider carefully
   0 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
   1 ALERT type 2 Indicator that the structure model may be wrong or deficient
   1 ALERT type 3 Indicator that the structure quality may be low
   3 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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