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Acta Cryst. (2013). E69, o957-o958  [ doi:10.1107/S1600536813013949 ]

L-Histidinium dipicrate dihydrate

M. Sethuram, M. V. Rajasekharan, M. Dhandapani, G. Amirthaganesan and M. NizamMohideen


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Alert level C PLAT089_ALERT_3_C Poor Data / Parameter Ratio (Zmax < 18) ..... 6.79 PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor .... 2.4 PLAT340_ALERT_3_C Low Bond Precision on C-C Bonds ............... 0.0043 Ang PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) ..... 2
Alert level G PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite 6 PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT007_ALERT_5_G Note: Number of Unrefined Donor-H Atoms ........ 5 PLAT042_ALERT_1_G Calc. and Reported MoietyFormula Strings Differ ? PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature 293 K PLAT779_ALERT_4_G Suspect or Irrelevant (Bond) Angle in CIF .... # 18 O7 -N5 -O7 1.555 1.555 1.555 0.00 Deg. PLAT791_ALERT_4_G Note: The Model has Chirality at C2 (Verify) S PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 7 PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 462
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 4 ALERT level C = Check. Ensure it is not caused by an omission or oversight 10 ALERT level G = General information/check it is not something unexpected 3 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 2 ALERT type 5 Informative message, check

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