Acta Cryst. (2012). E68, o2150
[ doi:10.1107/S1600536812026785 ]

Pentacyclo[9.3.1.1^2,6.1^4,8.1^9,13]octadeca-1(2),8(9)-diene

S. Ioannou and E. Moushi

Key indicators

• Single-crystal X-ray study
• T = 100 K
• Mean (C-C) = 0.002 Å
• R factor = 0.043
• wR factor = 0.117
• Data-to-parameter ratio = 10.3

checkCIF/PLATON results

No syntax errors found





Alert level A
PLAT900_ALERT_1_A No Matching Reflection File Found ..............          !

Alert level C
PLAT094_ALERT_2_C Ratio of Maximum / Minimum Residual Density ....       2.71      
PLAT410_ALERT_2_C Short Intra H...H Contact  H2A    ..  H2A     ..       1.95 Ang. 
PLAT410_ALERT_2_C Short Intra H...H Contact  H3B    ..  H3B     ..       1.94 Ang. 

Alert level G
PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF ....          ?
PLAT128_ALERT_4_G Alternate Setting of Space-group Cmca    .......      Ccmb       
PLAT764_ALERT_4_G Overcomplete CIF Bond List Detected (Rep/Expd) .       1.33 Ratio
PLAT793_ALERT_4_G The Model has Chirality at C4      (Verify) ....          S      

   1 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
   4 ALERT level G = General information/check it is not something unexpected

   1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   3 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
   3 ALERT type 4 Improvement, methodology, query or suggestion
   1 ALERT type 5 Informative message, check

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