Acta Cryst. (2004). E60, o1439-o1441  [ doi:10.1107/S1600536804018276 ]

9-(2-Hydroxy-4,4-dimethyl-6-oxocyclohex-1-enyl)-3,3,7-trimethyl-1,2,3,4-hexahydro-9H-xanthen-1-one

Y.-L. Li, X.-S. Wang, D.-Q. Shi, S.-J. Tu and Y. Zhang

Online 31 July 2004

Key indicators

• Single-crystal X-ray study
• T = 193 K
• Mean (C-C) = 0.003 Å
• R factor = 0.084
• wR factor = 0.167
• Data-to-parameter ratio = 17.4

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical .          ?
PLAT094_ALERT_2_C Ratio of Maximum / Minimum Residual Density ....       2.36       

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

   1 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
   0 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion

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