Acta Cryst. (2004). E60, o1281-o1282  [ doi:10.1107/S1600536804015703 ]

2,3-Dithien-2-ylquinoxalin-1-ium perchlorate

P. C. D. Foss, G. Crundwell, J. B. U. Updegraff III, M. Zeller and A. D. Hunter

Online 9 July 2004

Key indicators

• Single-crystal X-ray study
• T = 100 K
• Mean (C-C) = 0.004 Å
• R factor = 0.057
• wR factor = 0.150
• Data-to-parameter ratio = 17.4

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT094_ALERT_2_C Ratio of Maximum / Minimum Residual Density ....       2.04       
PLAT244_ALERT_4_C Low Solvent  U(eq) as Compared to Neighbors ....        Cl1     
PLAT244_ALERT_4_C Low Solvent  U(eq) as Compared to Neighbors ....        Cl2     
PLAT432_ALERT_2_C Short Inter X...Y Contact  O8     ..  C18     ..       3.01 Ang.  

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   4 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
   2 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
   2 ALERT type 4 Improvement, methodology, query or suggestion

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