Acta Cryst. (2007). E63, m38-m40  [ doi:10.1107/S1600536806054778 ]

TlHP₂O₇: structure determination from X-ray powder diffraction data

L. S. Ivashkevich, K. A. Selevich, A. S. Lyakhov and A. F. Selevich

Online 10 January 2007

Key indicators

• Powder X-ray study
• T = 295 K
• Mean (P-O) = 0.015 Å
• R factor = 0.076
• wR factor = 0.106
• Data-to-parameter ratio = 19.9

checkCIF/PLATON results

No syntax errors found




Alert level C
REFI023_ALERT_1_C  _refine_diff_density_max is missing
            Maximum value of final difference map (e A-3).
            The following tests will not be performed
            DIFMN_01,DIFMX_01,DIFMX_02
REFI024_ALERT_1_C  _refine_diff_density_min is missing
            Minimum value of final difference map (e A-3).
            The following tests will not be performed
            DIFMN_01,DIFMN_02,DIFMN_03

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   2 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
   0 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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