[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o54-o55
[ doi:10.1107/S1600536812049203 ]

(Z)-Ethyl 2-hydroxy-4-oxo-4-(1,4,5,6,8-pentamethoxynaphthalen-2-yl)but-2-enoate

A. Pillay, S. Khorasani and C. B. de Koning


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT026_ALERT_3_C Ratio Observed / Unique Reflections too Low .... 41 Perc. PLAT340_ALERT_3_C Low Bond Precision on C-C Bonds ............... 0.0043 Ang PLAT366_ALERT_2_C Short? C(sp?)-C(sp?) Bond C12A - C13A ... 1.34 Ang. PLAT905_ALERT_3_C Negative K value in the Analysis of Variance ... -3.101 PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) ..... 1 PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 9
Alert level G PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite 10 PLAT003_ALERT_2_G Number of Uiso or Uij Restrained Atom Sites .... 9 PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT007_ALERT_5_G Note: Number of Unrefined D-H Atoms ............ 2 PLAT154_ALERT_1_G The su's on the Cell Angles are Equal .......... 0.00400 Deg. PLAT242_ALERT_2_G Check Low Ueq as Compared to Neighbors for C15C PLAT301_ALERT_3_G Note: Main Residue Disorder ................... 8 Perc. PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 54 PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 2
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 6 ALERT level C = Check. Ensure it is not caused by an omission or oversight 9 ALERT level G = General information/check it is not something unexpected 1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 4 ALERT type 2 Indicator that the structure model may be wrong or deficient 7 ALERT type 3 Indicator that the structure quality may be low 1 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check

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