Acta Cryst. (2005). E61, o3930-o3932  [ doi:10.1107/S1600536805034823 ]

2,3-Dihydro-7-hydroxy-3-[(4-methoxyphenyl)methylene]-4H-1-benzopyran-4-one

S. Boonsri, S. Chantrapromma, H.-K. Fun, C. Karalai, A. Kanjana-opas and S. Anjum

Online 31 October 2005

Key indicators

• Single-crystal X-ray study
• T = 297 K
• Mean (C-C) = 0.002 Å
• R factor = 0.044
• wR factor = 0.106
• Data-to-parameter ratio = 13.5

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical .          ?

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   1 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
   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
   0 ALERT type 4 Improvement, methodology, query or suggestion


checkCIF publication errors

Alert level A
PUBL024_ALERT_1_A The number of authors is greater than 5.
              Please specify the role of each of the co-authors
              for your paper.

   1 ALERT level A = Data missing that is essential or data in wrong format
   0 ALERT level G = General alerts. Data that may be required is missing

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