Acta Cryst. (2012). E68, o108  [ doi:10.1107/S1600536811051646 ]

2-Amino-5-chloropyrimidin-1-ium hydrogen maleate

H.-K. Fun, M. Hemamalini and V. Rajakannan

Online 14 December 2011

Key indicators

• Single-crystal X-ray study
• T = 296 K
• Mean (C-C) = 0.002 Å
• R factor = 0.038
• wR factor = 0.109
• Data-to-parameter ratio = 21.4

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor ....        2.4      
PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L=  0.600          9      
PLAT912_ALERT_4_C Missing # of FCF Reflections Above STh/L=  0.600         42      

Alert level G
PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF ....          ?
PLAT720_ALERT_4_G Number of Unusual/Non-Standard Labels ..........          4      

   0 ALERT level A = Most likely a serious problem - resolve or explain
   0 ALERT level B = A potentially serious problem, consider carefully
   3 ALERT level C = Check. Ensure it is not caused by an omission or oversight
   2 ALERT level G = General information/check it is not something unexpected

   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
   1 ALERT type 3 Indicator that the structure quality may be low
   2 ALERT type 4 Improvement, methodology, query or suggestion
   1 ALERT type 5 Informative message, check

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