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Acta Cryst. (2012). E68, o99-o100  [ doi:10.1107/S1600536811052573 ]

N-(2-Chloro-4-nitrophenyl)maleamic acid monohydrate

K. Shakuntala, M. Fronc, B. T. Gowda and J. Kozísek

Online 14 December 2011


Key indicators

checkCIF/PLATON results

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Alert level C PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for N2 PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for C4 PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor .... 3.3 PLAT355_ALERT_3_C Long O-H Bond (0.82A) O11 - H11 ... 1.05 Ang. PLAT355_ALERT_3_C Long O-H Bond (0.82A) O11 - H11_a ... 1.05 Ang. PLAT431_ALERT_2_C Short Inter HL..A Contact Cl1 .. O3 .. 3.12 Ang. PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) ..... 7
Alert level G PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite 2 PLAT005_ALERT_5_G No _iucr_refine_instructions_details in CIF .... ? PLAT063_ALERT_4_G Crystal Size Likely too Large for Beam Size .... 0.81 mm PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature 293 K PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 1
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 7 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 2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 5 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 1 ALERT type 4 Improvement, methodology, query or suggestion 1 ALERT type 5 Informative message, check

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