[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o280
[ doi:10.1107/S1600536813001876 ]

rac-4a,10b-cis,10b,5c-trans-5-(7-Methyl-2-oxo-2H-chromen-4-yl)-3,4,4a,5,6,10b-hexahydro-2H-pyrano[3,2-c]quinoline

M. Kayalvizhi, G. Vasuki, S. D. Samant and K. K. Sanap


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT417_ALERT_2_C Short Inter D-H..H-D H1 .. H1 .. 2.12 Ang. PLAT420_ALERT_2_C D-H Without Acceptor N1 - H1 ... ? PLAT790_ALERT_4_C Centre of Gravity not Within Unit Cell: Resd. # 1 C22 H21 N O3 PLAT905_ALERT_3_C Negative K value in the Analysis of Variance ... -2.196 PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 21
Alert level G PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT007_ALERT_5_G Note: Number of Unrefined D-H Atoms ............ 1 PLAT380_ALERT_4_G Check Incorrectly? Oriented X(sp2)-Methyl Moiety C22 PLAT793_ALERT_4_G The Model has Chirality at C7 (Verify) .... R PLAT793_ALERT_4_G The Model has Chirality at C8 (Verify) .... R PLAT793_ALERT_4_G The Model has Chirality at C9 (Verify) .... S PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 76 PLAT960_ALERT_3_G Number of Intensities with I .LT. - 2*sig(I) ... 9
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 5 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 3 ALERT type 3 Indicator that the structure quality may be low 6 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check

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