[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o425
[ doi:10.1107/S1600536813004571 ]

A polymorph of 2,4-dinitrophenylhydrazine

K. Amimoto and H. Nishiguchi


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C STRVA01_ALERT_4_C Flack test results are ambiguous. From the CIF: _refine_ls_abs_structure_Flack 0.500 From the CIF: _refine_ls_abs_structure_Flack_su 0.900 PLAT147_ALERT_1_C su on Symmetry Constrained Cell Angle(s) ....... ? PLAT222_ALERT_3_C Large Non-Solvent H Uiso(max)/Uiso(min) .. 4.6 Ratio PLAT353_ALERT_3_C Long N-H Bond (0.87A) N4 - H4NB ... 1.01 Ang. PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 5 PLAT913_ALERT_3_C Missing # of Very Strong Reflections in FCF .... 1 PLAT915_ALERT_3_C Low Friedel Pair Coverage ...................... 55 Perc.
Alert level G PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT032_ALERT_4_G Std. Uncertainty on Flack Parameter Value High . 0.900 PLAT153_ALERT_1_G The su's on the Cell Axes are Equal .......... 0.00500 Ang. PLAT720_ALERT_4_G Number of Unusual/Non-Standard Labels .......... 2 PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 60 PLAT961_ALERT_5_G Dataset Contains no Negative Intensities ....... !
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 0 ALERT type 2 Indicator that the structure model may be wrong or deficient 5 ALERT type 3 Indicator that the structure quality may be low 4 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check

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