title: (1S*,2S*,4R*,5R*)-Cyclo-hexane-1,2,4,5-tetra-carb-oxy-lic acid.
abstract: The title compound, C10H12O8, a prospective raw material for colourless polyimides which are applied to electronic and microelectronic devices, lies about an inversion centre and the cyclo-hexane ring adopts a chair conformation. Two crystallographycally independent carb-oxy-lic acid groups on adjacent C atoms are in equatorial positions, resulting in a mutually trans conformation. In the crystal, O-H⋯O hydrogen bonds around an inversion centre and a threefold rotoinversion axis, respectively, form an inversion dimer with an R 2 (2)(8) motif and a trimer with an R 3 (3)(12) motif.
authors: Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan.
authors: Akira
authors: A
authors: Uchida
authors: Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan.
authors: Masatoshi
authors: M
authors: Hasegawa
authors: Department of Research and Development, Gas Chemical Division, Iwatani Industrial Gases Corporation Ltd., 10 Otakasu-cho, Amagasaki, Hyogo 660-0842, Japan.
authors: Shinya
authors: S
authors: Yamaguchi
authors: Department of Research and Development, Gas Chemical Division, Iwatani Industrial Gases Corporation Ltd., 10 Otakasu-cho, Amagasaki, Hyogo 660-0842, Japan.
authors: Eiichiro
authors: E
authors: Takezawa
authors: Department of Research and Development, Gas Chemical Division, Iwatani Industrial Gases Corporation Ltd., 10 Otakasu-cho, Amagasaki, Hyogo 660-0842, Japan.
authors: Atsushi
authors: A
authors: Ishikawa
authors: Department of Research and Development, Gas Chemical Division, Iwatani Industrial Gases Corporation Ltd., 10 Otakasu-cho, Amagasaki, Hyogo 660-0842, Japan.
authors: Takashi
authors: T
authors: Kagayama