Acta Cryst. (2002). E58, o1093-o1094  [ doi:10.1107/S1600536802015891 ]

2-[5,5-Dimethyl-3-(2-p-tolyl-vinyl)-cyclohex-2-enylidene]-malononitrile

T. Kolev, D. Yancheva, M. Schürmann, D.-C. Kleb, H. Preut and M. Spiteller

Key indicators

• Single-crystal X-ray study
• T = 291 K
• Mean (C-C) = 0.002 Å
• R factor = 0.043
• wR factor = 0.082
• Data-to-parameter ratio = 19.8

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(7)   -   C(7')  =       1.42 Ang.

PLAT_371  Alert C Long   C(sp2)-C(sp1) Bond  C(7')  -   C(8)   =       1.43 Ang.

PLAT_371  Alert C Long   C(sp2)-C(sp1) Bond  C(27)  -   C(27') =       1.43 Ang.

PLAT_371  Alert C Long   C(sp2)-C(sp1) Bond  C(27') -   C(28)  =       1.44 Ang.


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 4 Alert Level C = Please check

Copyright © International Union of Crystallography
IUCr Webmaster