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Anthracene-1,4,9,10-tetra-one.

ABSTRACT: The asymmetric unit of the title compound, C14H6O4, contains three independent mol-ecules (A, B and C). In mol-ecule C, there are two disordered sets of two carbonyl O atoms [occupancies = 0.643?(11) and 0.357?(11)]. All three mol-ecules are non-planar due to repulsion between two O atoms in peri positions on the anthracene ring, showing a slight difference in deviation of the carbonyl O atoms. The intra-molecular distances between the two nearest O atoms are in the range of 2.685?(10)-2.766?(10)?Å. In the crystal, mol-ecules are linked by C-H?O and ?-? [centroid-centroid distances = 3.615?(2), 3.844?(2) and 3.921?(2)?Å] inter-actions, which lead to the formation of a herringbone-like arrangement.

SUBMITTER: Kitamura C

PROVIDER: S-EPMC3884275 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature

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Anthracene-1,4,9,10-tetra-one.

Kitamura Chitoshi C Kawase Takeshi T

Acta crystallographica. Section E, Structure reports online 20131002 Pt 11

The asymmetric unit of the title compound, C14H6O4, contains three independent mol-ecules (A, B and C). In mol-ecule C, there are two disordered sets of two carbonyl O atoms [occupancies = 0.643 (11) and 0.357 (11)]. All three mol-ecules are non-planar due to repulsion between two O atoms in peri positions on the anthracene ring, showing a slight difference in deviation of the carbonyl O atoms. The intra-molecular distances between the two nearest O atoms are in the range of 2.685 (10)-2.766 (10 ...[more]

PMID: 24454051

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