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. 2012 Mar 1;68(Pt 3):o579.
doi: 10.1107/S1600536812003571. Epub 2012 Feb 4.

(1R*,2S*,4S*,5R*)-Cyclo-hexane-1,2:4,5-tetra-carb-oxy-lic dianhydride

Akira Uchida, Masatoshi Hasegawa, Eiichiro Takezawa, Shinya Yamaguchi, Atsushi Ishikawa, Takashi Kagayama

(1R*,2S*,4S*,5R*)-Cyclo-hexane-1,2:4,5-tetra-carb-oxy-lic dianhydride

Akira Uchida et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C(10)H(8)O(6), a promising raw material to obtain colorless polyimides which are applied to microelectronic and optoelectronic devices, adopts a folded conformation in which the dihedral angle between the two anhydro rings is 55.15 (8)°. The central six-membered ring assumes a conformation inter-mediate between boat and twist-boat. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions, forming a layer parallel to the bc plane.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title compound, showing displacement ellipsoids at the 50% probability level.
Fig. 2.
Fig. 2.
The crystal packing of the title compound viewed along the b axis. The dashed lines indicate C—H···O intermolecular interactions.
See this image and copyright information in PMC

References

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    1. Hasegawa, M. & Horie, K. (2001). Prog. Polym. Sci. 26, 259–335.

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