Acta Cryst. (2002). E58, o726-o728  [ doi:10.1107/S1600536802009480 ]

[2.2]Basketenoparacyclophane 18,20-dicarbonitrile

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

Online 8 June 2002

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.002 Å
• R factor = 0.040
• wR factor = 0.117
• Data-to-parameter ratio = 12.7

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



PLAT_320  Alert C Check Hybridisation of  C(18)  in main residue          ?

PLAT_320  Alert C Check Hybridisation of  C(19)  in main residue          ?

PLAT_320  Alert C Check Hybridisation of  C(20)  in main residue          ?


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 3 Alert Level C = Please check

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