Acta Cryst. (2004). E60, o1303-o1304  [ doi:10.1107/S1600536804015995 ]

2-(4-Bromophenyl)-8-cyano-5,7-dimethyloxazolo[3,2-a]pyridin-1-ylium perchlorate

D. V. Albov, E. I. Turubanova, V. B. Rybakov, E. V. Babaev and L. A. Aslanov

Online 9 July 2004

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.004 Å
• R factor = 0.045
• wR factor = 0.132
• Data-to-parameter ratio = 14.4

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low .......       0.96       
PLAT244_ALERT_4_C Low Solvent  U(eq) as Compared to Neighbors ....        Cl1     
PLAT371_ALERT_2_C Long   C(sp2)-C(sp1) Bond  C6     -   C61    ...       1.43 Ang.  
PLAT432_ALERT_2_C Short Inter X...Y Contact  O14    ..  C9      ..       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
   1 ALERT type 3 Indicator that the structure quality may be low
   1 ALERT type 4 Improvement, methodology, query or suggestion

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