Acta Cryst. (2004). E60, o301-o302  [ doi:10.1107/S1600536804001813 ]

1,2-Bis(carbazol-9-ylmethylene)-3,4-diphenylcyclobutane

R. I. Zubatyuk, O. I. Kharanenko, O. V. Shishkin, V. I. Dulenko and A. V. Kibalny

Online 30 January 2004

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.004 Å
• R factor = 0.052
• wR factor = 0.127
• Data-to-parameter ratio = 13.3

checkCIF/PLATON results

No syntax errors found




Alert level C
PLAT026_ALERT_3_C Ratio Observed / Unique Reflections too Low ....         47 Perc. 
PLAT230_ALERT_2_C Hirshfeld Test Diff for    C1     -   C6       =       5.22 su    

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   2 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
   1 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion

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