Acta Cryst. (2005). E61, o445-o447  [ doi:10.1107/S1600536805001820 ]

(Z)-2,3-Bis(2-phenylindolizin-3-yl)-2-butenedinitrile

W.-W. Liu, Y.-Z. Li, R.-K. Sun, H.-W. Hu, Q.-J. Wu and Z.-X. Huang

Online 29 January 2005

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.004 Å
• R factor = 0.065
• wR factor = 0.137
• Data-to-parameter ratio = 11.7

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT371_ALERT_2_C Long   C(sp2)-C(sp1) Bond  C9     -   C10    ...       1.44 Ang.  
PLAT371_ALERT_2_C Long   C(sp2)-C(sp1) Bond  C25    -   C26    ...       1.44 Ang.  
PLAT480_ALERT_4_C Long H...A H-Bond Reported H30A   ..  N3      ..       2.73 Ang.  

   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
   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
   1 ALERT type 4 Improvement, methodology, query or suggestion

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