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9-[(E)-2-(2-Meth-oxy-phen-yl)ethen-yl]-3,4,5,6,7,9-hexa-hydro-2H-xanthene-1,8-dione.

ABSTRACT: In the title compound, C(22)H(22)O(4), the two cyclo-hexenone rings adopt half-chair conformations, whereas the six-membered pyran ring adopts a flattened boat conformation, with the O and methine C atoms deviating from the plane of the other four atoms by 0.142?(2) and 0.287?(2)Å, respectively. In the crystal, weak C-H?O hydrogen bonds link mol-ecules into chains running parallel to the a axis.

SUBMITTER: Cha JH

PROVIDER: S-EPMC3275209 | biostudies-literature | 2012 Feb

REPOSITORIES: biostudies-literature

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9-[(E)-2-(2-Meth-oxy-phen-yl)ethen-yl]-3,4,5,6,7,9-hexa-hydro-2H-xanthene-1,8-dione.

Cha Joo Hwan JH Pae Ae Nim AN Lee Jae Kyun JK Cho Yong Seo YS

Acta crystallographica. Section E, Structure reports online 20120118 Pt 2

In the title compound, C(22)H(22)O(4), the two cyclo-hexenone rings adopt half-chair conformations, whereas the six-membered pyran ring adopts a flattened boat conformation, with the O and methine C atoms deviating from the plane of the other four atoms by 0.142 (2) and 0.287 (2)Å, respectively. In the crystal, weak C-H⋯O hydrogen bonds link mol-ecules into chains running parallel to the a axis. ...[more]

PMID: 22347065

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