Acta Cryst. (2009). E65, m267-m268  [ doi:10.1107/S1600536809004334 ]

Hexakis(2-aminopyridinium) di-₆-oxido-tetra-₃-oxido-tetradeca-₂-oxido-octaoxidodecavanadium(V) dihydrate

C. Yuan, L. Lu, M. Zhu, Q. Ma and Y. Wu

Online 13 February 2009

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean (C-C) = 0.011 Å
• R factor = 0.074
• wR factor = 0.128
• Data-to-parameter ratio = 11.7

checkCIF/PLATON results

No syntax errors found




Alert level C
            Value of measurement temperature given =   298.000
            Value of melting point given =     0.000
PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low .......       0.97      
PLAT083_ALERT_2_C SHELXL Second Parameter in WGHT unusually Large.       9.00      
PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor ....       2.39      
PLAT341_ALERT_3_C Low Bond Precision on C-C Bonds (x 1000) Ang ...         11      
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT062_ALERT_4_C Rescale T(min) & T(max) by .....................       0.98      

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   6 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
   2 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
   1 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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