[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o835-o836
[ doi:10.1107/S1600536813011616 ]

4-Hydroxy-1,2,6-trimethylpyridinium chloride monohydrate

T. Seethalakshmi, S. Manivannan, S. Dhanuskodi, D. E. Lynch and S. Thamotharan


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT905_ALERT_3_C Negative K value in the Analysis of Variance ... -0.930 PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) ..... 1 PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 3
Alert level G PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite 3 PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT072_ALERT_2_G SHELXL First Parameter in WGHT Unusually Large. 0.10 PLAT128_ALERT_4_G Alternate Setting of Space-group P21/c ....... P21/n PLAT380_ALERT_4_G Check Incorrectly? Oriented X(sp2)-Methyl Moiety C8 PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 2 PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 5
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 7 ALERT level G = General information/check it is not something unexpected 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 2 ALERT type 2 Indicator that the structure model may be wrong or deficient 4 ALERT type 3 Indicator that the structure quality may be low 3 ALERT type 4 Improvement, methodology, query or suggestion 1 ALERT type 5 Informative message, check

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