[HTML version][PDF version][Article Abstract][CIF][3d view][Structure Factors][Supplementary Material][Issue contents]  [Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o1053-o1054  [ doi:10.1107/S1600536813014530 ]

rac-4-(4-Chlorophenyl)-2-methylamino-3-nitro-5,6,7,8-tetrahydro-4H-chromen-5-one

P. Narayanan, J. Kamalraja, P. T. Perumal and K. Sethusankar


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT905_ALERT_3_C Negative K value in the Analysis of Variance ... -0.010
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 ? PLAT128_ALERT_4_G Note: Alternate Setting of Space-group P21/c . P21/n PLAT230_ALERT_2_G Hirshfeld Test Diff for C10 -- C11 .. 7.0 su PLAT301_ALERT_3_G Note: Main Residue Disorder ................... 4 % PLAT793_ALERT_4_G The Model has Chirality at C7 (Verify) .... R PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 4 PLAT909_ALERT_3_G Percentage of Observed Data at Theta(Max) still 59 %
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 1 ALERT level C = Check. Ensure it is not caused by an omission or oversight 8 ALERT level G = General information/check it is not something unexpected 0 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 2 ALERT type 4 Improvement, methodology, query or suggestion 1 ALERT type 5 Informative message, check

Copyright © International Union of Crystallography
IUCr Webmaster