(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2013). E69, o226
[ doi:10.1107/S1600536813000482 ]

5-(2,5-Dioxooxolan-3-yl)-8-methyl-3,3a,4,5-tetrahydro-1H-naphtho[1,2-c]furan-1,3-dione

Y. Z. Guo, J. G. Liu and S. Y. Yang

Key indicators

Single-crystal X-ray study
T = 173 K
Mean (C-C) = 0.002 Å
R factor = 0.046
wR factor = 0.113
Data-to-parameter ratio = 15.0

checkCIF/PLATON results

No syntax errors found



Datablock: I



Alert level C
PLAT906_ALERT_3_C Large K value in the Analysis of Variance ......      3.548      
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         10      
PLAT913_ALERT_3_C Missing # of Very Strong Reflections in FCF ....          1      

Alert level G
PLAT793_ALERT_4_G The Model has Chirality at C2      (Verify) ....          R      
PLAT793_ALERT_4_G The Model has Chirality at C3      (Verify) ....          R      
PLAT793_ALERT_4_G The Model has Chirality at C6      (Verify) ....          S      
PLAT793_ALERT_4_G The Model has Chirality at C9      (Verify) ....          R      
PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L=  0.600          3      

   0 ALERT level A = Most likely a serious problem - resolve or explain
   0 ALERT level B = A potentially serious problem, consider carefully
   4 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
   0 ALERT type 2 Indicator that the structure model may be wrong or deficient
   4 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