Acta Cryst. (2010). E66, o2831  [ doi:10.1107/S1600536810040511 ]

4,4'-Dimethoxy-2,2'-[(butane-1,4-diyldioxy)bis(nitrilomethylidyne)]diphenol

Y.-X. Sun, X.-Y. Dong and H. Zhao

Online 20 October 2010

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.004 Å
• R factor = 0.050
• wR factor = 0.149
• Data-to-parameter ratio = 13.8

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT026_ALERT_3_C Ratio Observed / Unique Reflections too Low ....         47 Perc.
PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L=  0.595          5      
PLAT480_ALERT_4_C Long H...A H-Bond Reported H3     ..  O2      ..       2.65 Ang. 
PLAT480_ALERT_4_C Long H...A H-Bond Reported H10A   ..  O3      ..       2.74 Ang. 

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   4 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
   0 ALERT type 2 Indicator that the structure model may be wrong or deficient
   2 ALERT type 3 Indicator that the structure quality may be low
   2 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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