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Acta Cryst. (2009). E65, o5  [ doi:10.1107/S1600536808039986 ]

2-Amino-4-(2-chlorophenyl)-5,10-dioxo-5,10-dihydro-4H-benzo[g]chromene-3-carbonitrile

J. Zhang, X. Zhang, S. Yan, N. Ma and S. Tu

Online 3 December 2008


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Alert level C Value of measurement temperature given = 298.000 Value of melting point given = 0.000 PLAT230_ALERT_2_C Hirshfeld Test Diff for C2 -- C14 .. 5.96 su PLAT340_ALERT_3_C Low Bond Precision on C-C Bonds (x 1000) Ang ... 5 PLAT371_ALERT_2_C Long C(sp2)-C(sp1) Bond C2 - C14 ... 1.42 Ang. PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical . ? PLAT234_ALERT_4_C Large Hirshfeld Difference C5 -- C6 .. 0.11 Ang.
Alert level G PLAT333_ALERT_2_G Check Large Av C6-Ring C-C Dist. C4 -C13 1.44 Ang. PLAT335_ALERT_2_G Check Large C6 Ring C-C Range . C4 -C13 0.16 Ang. PLAT793_ALERT_4_G The Model has Chirality at C3 (Verify) .... S
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 5 ALERT level C = Check and explain 3 ALERT level G = General alerts; check 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 1 ALERT type 3 Indicator that the structure quality may be low 2 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check

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