Acta Cryst. (2006). E62, i117-i119  [ doi:10.1107/S1600536806012141 ]

Redetermination of Co₄Nb₂O₉ by single-crystal X-ray methods

M. A. Castellanos R., S. Bernès and M. Vega-González

Online 11 April 2006

Key indicators

• Single-crystal X-ray study
• T = 297 K
• Mean (o-O) = 0.004 Å
• R factor = 0.031
• wR factor = 0.079
• Data-to-parameter ratio = 13.1

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT112_ALERT_2_B ADDSYM Detects Additional (Pseudo) Symm. Elem...          6     
PLAT112_ALERT_2_B ADDSYM Detects Additional (Pseudo) Symm. Elem...          m     
PLAT112_ALERT_2_B ADDSYM Detects Additional (Pseudo) Symm. Elem...          m     
PLAT112_ALERT_2_B ADDSYM Detects Additional (Pseudo) Symm. Elem...          m     

Alert level C
PLAT731_ALERT_1_C Bond    Calc    2.022(5), Rep    2.022(2) ......       2.50 su-Rat
              CO1  -O1      1.555   2.665                                       

   0 ALERT level A = In general: serious problem
   4 ALERT level B = Potentially serious problem
   1 ALERT level C = Check and explain
   0 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
   0 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion

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