[Open access]

[Contents scheme]

Acta Cryst. (2013). E69, o940
[ doi:10.1107/S1600536813013445 ]

Pyridine-4-carbaldehyde-fumaric acid (2/1)

B. Sandhu, S. Draguta, M. S. Fonari, M. Antipin and T. V. Timofeeva


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT355_ALERT_3_C Long O-H (X0.82,N0.98A) O5 - H5 ... 1.03 Ang. PLAT355_ALERT_3_C Long O-H (X0.82,N0.98A) O7 - H7 ... 1.05 Ang. PLAT355_ALERT_3_C Long O-H (X0.82,N0.98A) O9 - H9A ... 1.03 Ang. PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) ..... 1 PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.600 5
Alert level G PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? PLAT112_ALERT_2_G ADDSYM Detects Additional (Pseudo) Symm. Elem... S PLAT154_ALERT_1_G The su's on the Cell Angles are Equal .......... 0.00300 Deg. 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 5 ALERT level C = Check. Ensure it is not caused by an omission or oversight 4 ALERT level G = General information/check it is not something unexpected 1 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 5 ALERT type 3 Indicator that the structure quality may be low 0 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check

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