(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2004). E60, m554-m556 [ doi:10.1107/S1600536804007974 ]

Polymeric [2-(N-maleoyl)-2-methylpropionato]trimethyltin(IV)

M. Parvez, S. Ahmed, S. Ali, M. H. Bhatti and M. Mazhar

Online 9 April 2004

Key indicators

Single-crystal X-ray study
T = 173 K
Mean (C-C) = 0.006 Å
R factor = 0.039
wR factor = 0.081
Data-to-parameter ratio = 20.6

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT432_ALERT_2_C Short Inter X...Y Contact  O8     ..  C10     ..       2.97 Ang.  

Alert level G
FORMU01_ALERT_1_G  There is a discrepancy between the atom counts in the
            _chemical_formula_sum and _chemical_formula_moiety. This is
            usually due to the moiety formula being in the wrong format.
            Atom count from _chemical_formula_sum:   C11 H17 N1 O4 Sn1
            Atom count from _chemical_formula_moiety:

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

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