Acta Cryst. (2003). E59, o218-o219  [ doi:10.1107/S1600536803001338 ]

[2.2](2,7)Oxepinoparacyclophane-4,5-dicarbonitrile

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

Key indicators

• Single-crystal X-ray study
• T = 178 K
• Mean (C-C) = 0.006 Å
• R factor = 0.068
• wR factor = 0.219
• Data-to-parameter ratio = 12.7

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(4)   -   C(17)  =       1.43 Ang.

PLAT_371  Alert C Long   C(sp2)-C(sp1) Bond  C(5)   -   C(18)  =       1.43 Ang.


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 2 Alert Level C = Please check

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