Acta Cryst. (2010). E66, o389  [ doi:10.1107/S1600536809052167 ]

2-Carboxy-1-(3-nitrophenyl)ethanaminium perchlorate

W.-X. Liang

Online 16 January 2010

Key indicators

• Single-crystal X-ray study
• T = 93 K
• Mean (C-C) = 0.002 Å
• R factor = 0.030
• wR factor = 0.083
• Data-to-parameter ratio = 15.0

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT432_ALERT_2_C Short Inter X...Y Contact  O5     ..  C9      ..       2.97 Ang. 
PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) .....          2      
PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L=  0.600          2      
PLAT912_ALERT_4_C Missing # of FCF Reflections Above STh/L=  0.600         25      

Alert level G
PLAT793_ALERT_4_G The Model has Chirality at C7      (Verify) ....          S      

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   4 ALERT level C = Check and explain
   1 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
   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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