Acta Cryst. (2002). E58, o8-o9  [ doi:10.1107/S1600536801020323 ]

Diethyl 2-oxo-4,5-diphenylcyclopentane-1,3-dicarboxylate

D. A. Grossie, W. A. Feld, B. A. Reinhardt, D. Bernal, H. Dyar, I. Khan, J. Koussa, H. Krall, I. Kuhr and J. Sawyer

Online 8 December 2001

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean (C-C) = 0.003 Å
• R factor = 0.064
• wR factor = 0.219
• Data-to-parameter ratio = 22.7

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level C:



PLAT_360  Alert C Short  C(sp3)-C(sp3) Bond  C(22)  -   C(23)  =       1.40 Ang.

PLAT_369  Alert C Long   C(sp2)-C(sp2) Bond  C(3)   -   C(4)   =       1.53 Ang.


 0 Alert Level A = Potentially serious problem

 0 Alert Level B = Potential problem

 2 Alert Level C = Please check

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