[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o266
[ doi:10.1107/S1600536813001591 ]

4'-Cyanobiphenyl-4-yl 7-diethylamino-2-oxo-2H-chromene-3-carboxylate

S. Sreenivasa, H. T. Srinivasa, B. S. Palakshamurthy, V. Kumar and H. C. Devarajegowda


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT230_ALERT_2_C Hirshfeld Test Diff for C24 -- C27 .. 6.0 su PLAT601_ALERT_2_C Structure Contains Solvent Accessible VOIDS of . 31 A   3 PLAT906_ALERT_3_C Large K value in the Analysis of Variance ...... 7.341 PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.595 59
Alert level G PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT072_ALERT_2_G SHELXL First Parameter in WGHT Unusually Large. 0.11 PLAT093_ALERT_1_G No su's on H-positions, refinement reported as . mixed PLAT371_ALERT_2_G Long C(sp2)-C(sp1) Bond C24 - C27 ... 1.44 Ang. PLAT710_ALERT_4_G Delete 1-2-3 or 2-3-4 Linear Torsion Angle ... # 66 C23 -C24 -C27 -N2 8.00 6.00 1.555 1.555 1.555 1.555 PLAT710_ALERT_4_G Delete 1-2-3 or 2-3-4 Linear Torsion Angle ... # 67 C25 -C24 -C27 -N2 -172.00 6.00 1.555 1.555 1.555 1.555 PLAT909_ALERT_3_G Percentage of Observed Data at Theta(Max) still 36 Perc. PLAT961_ALERT_5_G Dataset Contains no Negative Intensities ....... !
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 4 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 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 3 ALERT type 3 Indicator that the structure quality may be low 2 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check

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