Acta Cryst. (2004). E60, m479-m481  [ doi:10.1107/S1600536804006415 ]

Dihydronium 2,6-diaminopyridinium tris(2,6-pyridinedicarboxylato)ytterbate(III) dihydrate

M. Rafizadeh, M. Ranjbar and V. Amani

Key indicators

• Single-crystal X-ray study
• T = 115 K
• Mean (C-C) = 0.004 Å
• R factor = 0.028
• wR factor = 0.059
• Data-to-parameter ratio = 19.3

checkCIF/PLATON results

No syntax errors found



Alert level A
PLAT355_ALERT_3_A Long    O-H Bond (0.82A)   O1W    -   H1WC   ...       1.22 Ang.  

Alert level B
PLAT029_ALERT_3_B _diffrn_measured_fraction_theta_full Low .......       0.95       
PLAT094_ALERT_2_B Ratio of Maximum / Minimum Residual Density ....       5.23       
PLAT417_ALERT_2_B Short Inter D-H..H-D       H1WB   ..  H2WA    ..       2.03 Ang.  
PLAT420_ALERT_2_B D-H Without Acceptor       O1W    -   H1WC   ...          ?       

Alert level C
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT062_ALERT_4_C Rescale T(min) & T(max) by .....................       0.96       
PLAT125_ALERT_4_C No _symmetry_space_group_name_Hall Given .......          ?
PLAT128_ALERT_4_C Non-standard setting of Space group P2/c    ....    P2/n          
PLAT313_ALERT_2_C Oxygen with three covalent bonds (rare) ........        O1W     
PLAT420_ALERT_2_C D-H Without Acceptor       N5     -   H5NA   ...          ?       
PLAT720_ALERT_4_C Number of Unusual/Non-Standard Label(s) ........          9       

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

   1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   5 ALERT type 2 Indicator that the structure model may be wrong or deficient
   2 ALERT type 3 Indicator that the structure quality may be low
   4 ALERT type 4 Improvement, methodology, query or suggestion

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