[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o281
[ doi:10.1107/S1600536813001384 ]

9-(2,4-Dinitrophenyl)-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione

N. Sureshbabu and V. Sughanya


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for N2
Alert level G PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT793_ALERT_4_G The Model has Chirality at C7 (Verify) .... S PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 65
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 3 ALERT level G = General information/check it is not something unexpected 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 1 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 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

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