Acta Cryst. (2007). E63, i122-i124  [ doi:10.1107/S1600536807015048 ]

Single-crystal X-ray refinement of wilkinsonite, Na₂Fe₄²⁺Fe₂³⁺Si₆O₂₀

J. B. Burt, R. T. Downs and G. Costin

Online 18 April 2007

Key indicators

• Single-crystal X-ray study
• T = 296 K
• Mean (i-O) = 0.005 Å
• R factor = 0.041
• wR factor = 0.089
• Data-to-parameter ratio = 13.9

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical .          ?
PLAT155_ALERT_4_C The Triclinic Unitcell is NOT Reduced ..........          ?
PLAT156_ALERT_4_C Axial System Input Cell not Standard ...........          ?

   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

   1 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
   0 ALERT type 3 Indicator that the structure quality may be low
   2 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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