Acta Cryst. (2007). E63, i138-i139  [ doi:10.1107/S1600536807020703 ]

C-type CeP₃O₉

J. M. Cole and D. Ilieva

Online 3 May 2007

Key indicators

• Single-crystal X-ray study
• T = 180 K
• Mean (P-O) = 0.003 Å
• R factor = 0.025
• wR factor = 0.055
• Data-to-parameter ratio = 11.2

checkCIF/PLATON results

No syntax errors found



Alert level A
PLAT029_ALERT_3_A _diffrn_measured_fraction_theta_full Low .......       0.92      

Alert level B
PLAT213_ALERT_2_B Atom O3      has ADP max/min Ratio .............       4.20 prola

Alert level C
PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor ....       2.91      

Alert level G
REFLT03_ALERT_4_G  WARNING: Large fraction of Friedel related reflns may
                     be needed to determine absolute structure
           From the CIF: _diffrn_reflns_theta_max           27.43
           From the CIF: _reflns_number_total                686
           Count of symmetry unique reflns          488
           Completeness (_total/calc)            140.57%
           TEST3: Check Friedels for noncentro structure
           Estimate of Friedel pairs measured       198
           Fraction of Friedel pairs measured     0.406
           Are heavy atom types Z>Si present        yes
PLAT794_ALERT_5_G Check Predicted Bond Valency for Ce1         (3)       3.33      

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

   0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   2 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
   1 ALERT type 4 Improvement, methodology, query or suggestion
   1 ALERT type 5 Informative message, check

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