Acta Cryst. (2003). E59, o220-o221  [ doi:10.1107/S160053680300134X ]

2,3:9,10-Dibenzotricyclo[5.3.0.0^4,8]deca-2,5,9-triene-6,7-dicarbonitrile

P. G. Jones, P. Bubenitschek, H. Hopf and B. Witulski

Online 24 January 2003

Key indicators

• Single-crystal X-ray study
• T = 178 K
• Mean (C-C) = 0.002 Å
• R factor = 0.038
• wR factor = 0.099
• Data-to-parameter ratio = 13.0

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



PLAT_371  Alert C Long   C(sp2)-C(sp1) Bond  C(6)   -   C(19)  =       1.43 Ang.

PLAT_710  Alert C Delete 1-2-3 or 2-3-4 (CIF) Linear Torsion Angle #     65
                   C5  -C6  -C19 -N1    108.00  6.00   1.555   1.555   1.555   1.555

PLAT_710  Alert C Delete 1-2-3 or 2-3-4 (CIF) Linear Torsion Angle #     66
                   C7  -C6  -C19 -N1    -69.00  7.00   1.555   1.555   1.555   1.555

PLAT_710  Alert C Delete 1-2-3 or 2-3-4 (CIF) Linear Torsion Angle #     67
                   C6  -C7  -C20 -N2    -66.00  3.00   1.555   1.555   1.555   1.555

PLAT_710  Alert C Delete 1-2-3 or 2-3-4 (CIF) Linear Torsion Angle #     68
                   C8  -C7  -C20 -N2    178.00100.00   1.555   1.555   1.555   1.555

PLAT_710  Alert C Delete 1-2-3 or 2-3-4 (CIF) Linear Torsion Angle #     69
                   C1  -C7  -C20 -N2     68.00  3.00   1.555   1.555   1.555   1.555


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 6 Alert Level C = Please check

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