(IUCr) Crystallography Journals Online checkcif report

[Contents scheme]

Acta Cryst. (2005). E61, o1904-o1906 [ doi:10.1107/S1600536805015904 ]

4',5',6',7'-Tetrachlorospiro[cyclohex-2-ene-1,2'-indan]-1',3'-dione

N. McSweeney, A. C. Pratt, C. Long and R. A. Howie

Online 28 May 2005

Key indicators

Single-crystal X-ray study
T = 298 K
Mean (C-C) = 0.007 Å
Disorder in main residue
R factor = 0.070
wR factor = 0.198
Data-to-parameter ratio = 17.0

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT241_ALERT_2_C Check High      Ueq as Compared to Neighbors for        C14     
PLAT301_ALERT_3_C Main Residue  Disorder .........................       5.00 Perc. 
PLAT340_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ...          7       

   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

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