Acta Cryst. (2004). E60, m137-m139  [ doi:10.1107/S1600536803029453 ]

The dimer bis(-8-hydroxy-7-iodoquinoline-5-sulfonato-³N,O:O')bis[triaquamagnesium(II)] tetrahydrate

S. Francis, P. T. Muthiah, U. Rychlewska and B. Warzajtis

Online 10 January 2004

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.003 Å
• R factor = 0.024
• wR factor = 0.057
• Data-to-parameter ratio = 14.7

checkCIF/PLATON results

No syntax errors found




Alert level C
ABSTM02_ALERT_3_C  The ratio of expected to reported Tmax/Tmin(RR) is > 1.10
            Tmin and Tmax reported:      0.566     0.788
            Tmin and Tmax expected:      0.434     0.788
            RR =      1.304
            Please check that your absorption correction is appropriate.
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT060_ALERT_3_C Ratio Tmax/Tmin (Exp-to-Rep) (too) Large .......       1.32       

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   3 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
   0 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
   0 ALERT type 4 Improvement, methodology, query or suggestion

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