Acta Cryst. (2007). E63, o3878  [ doi:10.1107/S1600536807040962 ]

10,11-Dihydroxy-4-azatricyclo[5.2.2.0^2,6]undec-8-ene-3,5-dione

M. Krawiecka, I. Wawrzycka-Gorczyca, A. Galazka, J. Kossakowski and A. E. Koziol

Key indicators

• Single-crystal X-ray study
• T = 295 K
• Mean (C-C) = 0.002 Å
• R factor = 0.043
• wR factor = 0.127
• Data-to-parameter ratio = 13.8

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT480_ALERT_4_C Long H...A H-Bond Reported H7     ..  O5      ..       2.84 Ang. 
PLAT480_ALERT_4_C Long H...A H-Bond Reported H8     ..  O5      ..       2.96 Ang. 
PLAT480_ALERT_4_C Long H...A H-Bond Reported H1     ..  O5      ..       2.73 Ang. 
PLAT482_ALERT_4_C Small D-H..A Angle Rep for O11    ..  O10     ..      99.00 Deg. 
PLAT482_ALERT_4_C Small D-H..A Angle Rep for C8     ..  O5      ..      98.00 Deg. 

Alert level G
PLAT793_ALERT_1_G Check the Absolute Configuration of C1     = ...          S      
PLAT793_ALERT_1_G Check the Absolute Configuration of C2     = ...          R      
PLAT793_ALERT_1_G Check the Absolute Configuration of C6     = ...          S      
PLAT793_ALERT_1_G Check the Absolute Configuration of C7     = ...          R      
PLAT793_ALERT_1_G Check the Absolute Configuration of C10    = ...          R      
PLAT793_ALERT_1_G Check the Absolute Configuration of C11    = ...          S      

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

   6 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
   5 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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