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Acta Cryst. (2009). E65, o933  [ doi:10.1107/S1600536809011143 ]

Bis(melaminium) tartrate dihydrate

H. Su, Y.-K. Lv and Y.-L. Feng

Online 31 March 2009


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Alert level C Value of measurement temperature given = 296.000 Value of melting point given = 0.000 CHEMW01_ALERT_1_C The difference between the given and expected weight for compound is greater 1 mass unit. Check that all hydrogen atoms have been taken into account. PLAT041_ALERT_1_C Calc. and Reported SumFormula Strings Differ ? PLAT042_ALERT_1_C Calc. and Reported MoietyFormula Strings Differ ? PLAT045_ALERT_1_C Calculated and Reported Z Differ by ............ 2.00 Ratio
Alert level G PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 15 PLAT720_ALERT_4_G Number of Unusual/Non-Standard Labels .......... 9 PLAT793_ALERT_4_G The Model has Chirality at C2 (Verify) .... S
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 4 ALERT level C = Check and explain 3 ALERT level G = General alerts; check 4 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 0 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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