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2,3,6,7-Tetra-meth-oxy-9,10-anthra-quinone.

ABSTRACT: Mol-ecules of the title compound, C(18)H(16)O(6), are almost planar [maximum deviation = 0.096?(4)?Å] and reside on crystallographic centres of inversion. They adopt a conformation in which the C(meth-yl)-O bonds are directed along the mol-ecular short axis [C-C-O-C torsion angles of -175.3?(3) and 178.2?(3)°]. In the crystal, mol-ecules adopt a slipped-parallel arrangement with ?-? stacking inter-actions along the a axis with an inter-planar distance of 3.392?(4)?Å. Weak C-H?O inter-actions link the mol-ecules into sheets parallel to (10-2).

SUBMITTER: Ohta A 

PROVIDER: S-EPMC3415025 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature

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2,3,6,7-Tetra-meth-oxy-9,10-anthra-quinone.

Ohta Akira A   Hattori Kazuki K   Kawase Takeshi T   Kobayashi Takashi T   Naito Hiroyoshi H   Kitamura Chitoshi C  

Acta crystallographica. Section E, Structure reports online 20120728 Pt 8

Mol-ecules of the title compound, C(18)H(16)O(6), are almost planar [maximum deviation = 0.096 (4) Å] and reside on crystallographic centres of inversion. They adopt a conformation in which the C(meth-yl)-O bonds are directed along the mol-ecular short axis [C-C-O-C torsion angles of -175.3 (3) and 178.2 (3)°]. In the crystal, mol-ecules adopt a slipped-parallel arrangement with π-π stacking inter-actions along the a axis with an inter-planar distance of 3.392 (4) Å. Weak C-H⋯O inter-actions lin  ...[more]

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