Acta Cryst. (2003). E59, i147-i148  [ doi:10.1107/S1600536803021640 ]

The intermetallic compound Gd₆Ta₄Al₄₃

C. L. Condron, J. D. Strand, P. C. Canfield and G. J. Miller

Online 15 October 2003

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (Gd-Gd) = 0.001 Å
• R factor = 0.019
• wR factor = 0.043
• Data-to-parameter ratio = 16.5

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT029_ALERT_3_B _diffrn_measured_fraction_theta_full Low .......       0.99       
PLAT731_ALERT_1_B Bond    Calc  3.1349(19), Rep   3.1350(4) ......       4.75 su-Rat
              GD   -AL5     1.555  14.555                                       
PLAT731_ALERT_1_B Bond    Calc    2.618(4), Rep   2.6181(5) ......       8.00 su-Rat
              TA1  -AL7     1.555   2.655                                       

Alert level C
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT152_ALERT_1_C Supplied and Calc Volume s.u. Inconsistent .....          ?
PLAT731_ALERT_1_C Bond    Calc  3.1349(13), Rep   3.1350(4) ......       3.25 su-Rat
              GD   -AL5     1.555   1.545                                       
PLAT731_ALERT_1_C Bond    Calc    2.618(2), Rep   2.6181(5) ......       4.00 su-Rat
              TA1  -AL7     1.555   1.655                                       
PLAT731_ALERT_1_C Bond    Calc  3.1350(13), Rep   3.1350(4) ......       3.25 su-Rat
              AL5  -GD      1.555   1.565                                       
PLAT731_ALERT_1_C Bond    Calc  3.1350(15), Rep   3.1350(4) ......       3.75 su-Rat
              AL5  -GD      1.555  15.555                                       
PLAT731_ALERT_1_C Bond    Calc  3.4179(16), Rep   3.4178(5) ......       3.20 su-Rat
              AL5  -GD      1.555  13.665                                       
PLAT731_ALERT_1_C Bond    Calc  3.4179(14), Rep   3.4178(5) ......       2.80 su-Rat
              AL5  -GD      1.555   3.665                                       
PLAT731_ALERT_1_C Bond    Calc    2.618(2), Rep   2.6181(5) ......       4.00 su-Rat
              AL7  -TA1     1.555   1.455                                       
PLAT731_ALERT_1_C Bond    Calc    2.618(2), Rep   2.6181(5) ......       4.00 su-Rat
              AL7  -TA1     1.555   3.665                                       

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

  12 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
   1 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion

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