Acta Cryst. (2006). E62, i23-i25  [ doi:10.1107/S1600536805042613 ]

PbCl(ReO₄), a derivative of the matlockite (PbFCl) structure

D. O. Charkin, P. A. Plachinda, N. V. Pervukhina, S. V. Borisov and S. A. Magarill

Online 7 January 2006

Key indicators

• Single-crystal X-ray study
• T = 173 K
• Mean (e-O) = 0.014 Å
• R factor = 0.035
• wR factor = 0.089
• Data-to-parameter ratio = 12.6

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT094_ALERT_2_C Ratio of Maximum / Minimum Residual Density ....       2.58       

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           28.28
           From the CIF: _reflns_number_total                518
           Count of symmetry unique reflns          363
           Completeness (_total/calc)            142.70%
           TEST3: Check Friedels for noncentro structure
           Estimate of Friedel pairs measured       155
           Fraction of Friedel pairs measured     0.427
           Are heavy atom types Z>Si present        yes

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

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

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