Acta Cryst. (2004). E60, o241-o243  [ doi:10.1107/S160053680400100X ]

4-Amino-2,6-dichloro-5-nitropyrimidine

D. McKeveney, R. J. Quinn, C. O. Janssen and P. C. Healy

Online 23 January 2004

Key indicators

• Single-crystal X-ray study
• T = 295 K
• Mean (C-C) = 0.004 Å
• R factor = 0.047
• wR factor = 0.144
• Data-to-parameter ratio = 16.1

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT242_ALERT_2_C Check Low    U(eq) as Compared to Neighbors ....         N5     
PLAT250_ALERT_2_C Large U3/U1 ratio for average U(i,j) tensor ....       2.32       
PLAT430_ALERT_2_C Short Inter D...A Contact  O51    ..  O51      =       2.89 Ang.  
PLAT431_ALERT_2_C Short Inter HL..A Contact  Cl2    ..  O52      =       3.06 Ang.  

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   4 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
   4 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

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