[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o376
[ doi:10.1107/S1600536813003206 ]

6,7-Difluoro-1,2,3,4-tetrahydroquinoxaline-5,8-dicarbonitrile

B.-H. Qu, X.-C. Jia, J. Li and M.-Y. He


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low ....... 0.975 PLAT048_ALERT_1_C MoietyFormula Not Given ........................ ? PLAT230_ALERT_2_C Hirshfeld Test Diff for C1 -- C3 .. 6.2 su PLAT230_ALERT_2_C Hirshfeld Test Diff for C2 -- C6 .. 5.7 su PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 19 PLAT913_ALERT_3_C Missing # of Very Strong Reflections in FCF .... 1
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 ............ 2 PLAT154_ALERT_1_G The su's on the Cell Angles are Equal .......... 0.00200 Deg. PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature 293 K PLAT371_ALERT_2_G Long C(sp2)-C(sp1) Bond C1 - C3 ... 1.43 Ang. PLAT371_ALERT_2_G Long C(sp2)-C(sp1) Bond C2 - C6 ... 1.43 Ang. PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 35
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 6 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 4 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 1 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check

Copyright © International Union of Crystallography
IUCr Webmaster