Acta Cryst. (2008). E64, o1661  [ doi:10.1107/S1600536808024082 ]

4-[(2-Fluorophenyl)amino]-4-oxobutanoic acid

F. A. Shah, M. N. Tahir and S. Ali

Online 6 August 2008

Key indicators

• Single-crystal X-ray study
• T = 296 K
• Mean (C-C) = 0.003 Å
• R factor = 0.050
• wR factor = 0.145
• Data-to-parameter ratio = 18.0

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for         C1     
PLAT480_ALERT_4_C Long H...A H-Bond Reported H2B    ..  F1      ..       2.61 Ang. 
PLAT480_ALERT_4_C Long H...A H-Bond Reported H2A    ..  F1      ..       2.82 Ang. 

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   3 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
   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
   2 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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