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Crystal structure of 1,4-dieth-oxy-9,10-anthra-quinone.

ABSTRACT: The asymmetric unit of the title compound, C18H16O4, contains two crystallographically independent mol-ecules. The anthra-quinone ring systems are slightly bent with dihedral angles of 2.33 (8) and 13.31 (9)° between the two terminal benzene rings. In the crystal, the two independent mol-ecules adopt slipped-parallel π-overlap with an average inter-planar distance of 3.45 Å, forming a dimer; the centroid-centroid distances of the π-π inter-actions are 3.6659 (15)-3.8987 (15) Å. The mol-ecules are also linked by C-H⋯O inter-actions, forming a tape structure along the a-axis direction. The crystal packing is characterized by a dimer-herringbone pattern.

SUBMITTER: Kitamura C

PROVIDER: S-EPMC4518951 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature

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Crystal structure of 1,4-dieth-oxy-9,10-anthra-quinone.

Kitamura Chitoshi C Li Sining S Takehara Munenori M Inoue Yoshinori Y Ono Katsuhiko K Kawase Takeshi T

Acta crystallographica. Section E, Crystallographic communications 20150624 Pt 7

The asymmetric unit of the title compound, C18H16O4, contains two crystallographically independent mol-ecules. The anthra-quinone ring systems are slightly bent with dihedral angles of 2.33 (8) and 13.31 (9)° between the two terminal benzene rings. In the crystal, the two independent mol-ecules adopt slipped-parallel π-overlap with an average inter-planar distance of 3.45 Å, forming a dimer; the centroid-centroid distances of the π-π inter-actions are 3.6659 (15)-3.8987 (15) Å. The mol-ecules ar ...[more]

PMID: 26279933

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Crystal structure of 2-bromo-1,4-dihy-droxy-9,10-anthra-quinone.

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Crystal structure of dimethyl 2,5-bis-[(di-phen-oxy-phosphor-yl)-oxy]cyclo-hexa-1,4-diene-1,4-di-carboxyl-ate.

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