Acta Cryst. (2010). E66, o1020  [ doi:10.1107/S1600536810011955 ]

2-Chloro-3-nitropyridine

S. W. Ng

Online 2 April 2010

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.003 Å
• R factor = 0.037
• wR factor = 0.108
• Data-to-parameter ratio = 14.0

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT152_ALERT_1_B The Supplied and Calc. Volume s.u. Differ by ...         -4 Units

Alert level C
CRYSC01_ALERT_1_C The word below has not been recognised as a standard
            identifier.
            Faint
PLAT431_ALERT_2_C Short Inter HL..A Contact  Cl1    ..  O2      ..       3.15 Ang. 
PLAT480_ALERT_4_C Long H...A H-Bond Reported H4     ..  O1      ..       2.64 Ang. 

Alert level G
PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints .......          3      
PLAT128_ALERT_4_G Non-standard setting of Space-group P21/c   ....      P21/n      
PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature        293 K    
PLAT200_ALERT_1_G Check the Reported   _diffrn_ambient_temperature        293 K    

   0 ALERT level A = In general: serious problem
   1 ALERT level B = Potentially serious problem
   3 ALERT level C = Check and explain
   4 ALERT level G = General alerts; check

   4 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
   1 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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