[Open access]

[Contents scheme]

Acta Cryst. (2012). E68, o3081
[ doi:10.1107/S1600536812041177 ]

2-Carboxypyridinium maleate

P. Pandi, G. Peramaiyan, R. Akilan, G. Chakkaravarthi and R. Mohankumar


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level B PLAT930_ALERT_2_B Check Twin Law ( 1 0 0)[ 5 0 2] Estimated BASF 0.14
Alert level C PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor .... 2.1 PLAT906_ALERT_3_C Large K value in the Analysis of Variance ...... 4.554 PLAT906_ALERT_3_C Large K value in the Analysis of Variance ...... 2.486 PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 3
Alert level G PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF .... ? PLAT007_ALERT_5_G Note: Number of Unrefined D-H Atoms ............ 3 PLAT870_ALERT_4_G ALERTS Related to Twinning Effects Suppressed .. ! PLAT870_ALERT_4_G ALERTS Related to Twinning Effects Suppressed .. ! PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 14 PLAT931_ALERT_5_G Check Twin Law ( 1 0 0)[ ] Estimated BASF 0.13
0 ALERT level A = Most likely a serious problem - resolve or explain 1 ALERT level B = A potentially serious problem, consider carefully 4 ALERT level C = Check. Ensure it is not caused by an omission or oversight 6 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 3 ALERT type 3 Indicator that the structure quality may be low 3 ALERT type 4 Improvement, methodology, query or suggestion 3 ALERT type 5 Informative message, check

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