Acta Cryst. (2006). E62, m738-m740  [ doi:10.1107/S1600536806007938 ]

Poly[diaquadi-₆-succinato-₅-succinato-dierbium(III)]

G.-Y. Dong, G.-H. Cui and J. Lin

Online 10 March 2006

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.010 Å
• R factor = 0.039
• wR factor = 0.104
• Data-to-parameter ratio = 13.2

checkCIF/PLATON results

No syntax errors found




Alert level B
PLAT420_ALERT_2_B D-H Without Acceptor       O1W    -   H1WA   ...          ?       

Alert level C
PLAT022_ALERT_3_C Ratio Unique / Expected Reflections too Low ....       0.95       
PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low .......       0.98       
PLAT200_ALERT_1_C Check the Reported _diffrn_ambient_temperature .        293 K     
PLAT342_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ...         10       
PLAT720_ALERT_4_C Number of Unusual/Non-Standard Label(s) ........          4       
PLAT731_ALERT_1_C Bond    Calc     0.83(5), Rep     0.83(2) ......       2.50 su-Rat
              O2W  -H2WA    1.555   1.555                                       
PLAT731_ALERT_1_C Bond    Calc     0.84(5), Rep     0.84(2) ......       2.50 su-Rat
              O2W  -H2WB    1.555   1.555                                       
PLAT731_ALERT_1_C Bond    Calc     0.85(8), Rep     0.85(2) ......       4.00 su-Rat
              O1W  -H1WA    1.555   1.555                                       
PLAT732_ALERT_1_C Angle   Calc      106(8), Rep      106(3) ......       2.67 su-Rat
              H1WA -O1W  -H1WB    1.555   1.555   1.555                         
PLAT764_ALERT_4_C Overcomplete CIF Bond List Detected (Rep/Expd) .       1.38 Ratio 

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

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

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