Acta Cryst. (2007). E63, o2918  [ doi:10.1107/S1600536807022404 ]

Methyl 3-(3,4,5-tribromo-1H-pyrrol-2-ylcarboxamido)propionate

X.-C. Zeng, X. Ling, J. Zeng and X. Li

Online 23 May 2007

Key indicators

• Single-crystal X-ray study
• T = 173 K
• Mean (C-C) = 0.007 Å
• R factor = 0.037
• wR factor = 0.107
• Data-to-parameter ratio = 16.0

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT431_ALERT_2_B Short Inter HL..A Contact  Br2    ..  O2      ..       2.97 Ang. 

Alert level C
PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical .          ?
PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor ....       2.17      
PLAT341_ALERT_3_C Low Bond Precision on C-C Bonds (x 1000) Ang ...          7      
PLAT431_ALERT_2_C Short Inter HL..A Contact  Br3    ..  O3      ..       3.21 Ang. 

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

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