(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2004). E60, o2185-o2186 [ doi:10.1107/S1600536804027382 ]

Pyridine-2-carboxaldehyde picoloylhydrazone

S.-C. Shao, Z.-L. You, L.-L. Tang, Y.-S. Lin and H.-L. Zhu

Key indicators

Single-crystal X-ray study
T = 298 K
Mean (C-C) = 0.004 Å
R factor = 0.069
wR factor = 0.136
Data-to-parameter ratio = 14.5

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT026_ALERT_3_C Ratio Observed / Unique Reflections too Low ....         49 Perc. 
PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical .          ?
PLAT731_ALERT_1_C Bond    Calc   0.896(19), Rep    0.897(9) ......       2.11 su-Rat
              N2   -H2A     1.555   1.555                                       

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   3 ALERT level C = Check and explain
   0 ALERT level G = General alerts; check

   2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   0 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
   0 ALERT type 4 Improvement, methodology, query or suggestion