[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o993
[ doi:10.1107/S1600536813014062 ]

6a-Nitro-6-phenyl-6,6a,6b,7,8,9,10,12a-octahydrospiro[chromeno[3,4-a]indolizine-12,3'-indolin]-2'-one

S. K. Devi, T. Srinivasan, J. N. S. Rao, R. Raghunathan and D. Velmurugan


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT230_ALERT_2_C Hirshfeld Test Diff for N1 -- C8 .. 6.5 su PLAT905_ALERT_3_C Negative K value in the Analysis of Variance ... -2.555
Alert level G PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT007_ALERT_5_G Note: Number of Unrefined Donor-H Atoms ........ 1 PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature 293 K PLAT793_ALERT_4_G The Model has Chirality at C7 (Verify) .... S PLAT793_ALERT_4_G The Model has Chirality at C8 (Verify) .... R PLAT793_ALERT_4_G The Model has Chirality at C9 (Verify) .... S PLAT793_ALERT_4_G The Model has Chirality at C16 (Verify) .... R PLAT793_ALERT_4_G The Model has Chirality at C21 (Verify) .... R PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 111
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 2 ALERT level C = Check. Ensure it is not caused by an omission or oversight 10 ALERT level G = General information/check it is not something unexpected 2 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 1 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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