Acta Cryst. (2004). E60, o1659-o1660  [ doi:10.1107/S160053680402046X ]

5,6-[2-Acetyl-1-(ethoxycarbonyl)ethylidene]-1,3,3a,4,5,6,7,7a-octahydro-4,7-epoxyisobenzofuran-1,3-dione

A. J. Lough, K. Villeneuve and W. Tam

Online 31 August 2004

Key indicators

• Single-crystal X-ray study
• T = 150 K
• Mean (C-C) = 0.002 Å
• R factor = 0.043
• wR factor = 0.119
• Data-to-parameter ratio = 16.1

checkCIF/PLATON results

No syntax errors found






Alert level B
PLAT432_ALERT_2_B Short Inter X...Y Contact  O5     ..  C5      ..       2.89 Ang.  

Alert level C
PLAT432_ALERT_2_C Short Inter X...Y Contact  O5     ..  C4      ..       2.96 Ang.  

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

   0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   2 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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