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9-(4-Hy-droxy-3,5-dimeth-oxy-phen-yl)-3,3,6,6-tetra-methyl-3,4,5,6,7,9-hexa-hydro-1H-xanthene-1,8(2H)-dione.

ABSTRACT: In the title compound, C(25)H(30)O(6), the two fused cyclo-hexa-none rings have envelope conformations, whereas the central pyran ring is roughly planar [mximum deviation = 0.045?(2)?Å]. The pyran and benzene rings are almost perpendicular to each other, making a dihedral angle of 86.32?(2)°. In the crystal, molecules are linked via pairs of O-H?O hydrogen bonds, forming inversion dimers.

SUBMITTER: Sughanya V

PROVIDER: S-EPMC3344018 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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9-(4-Hy-droxy-3,5-dimeth-oxy-phen-yl)-3,3,6,6-tetra-methyl-3,4,5,6,7,9-hexa-hydro-1H-xanthene-1,8(2H)-dione.

Sughanya V V Sureshbabu N N

Acta crystallographica. Section E, Structure reports online 20120314 Pt 4

In the title compound, C(25)H(30)O(6), the two fused cyclo-hexa-none rings have envelope conformations, whereas the central pyran ring is roughly planar [mximum deviation = 0.045 (2) Å]. The pyran and benzene rings are almost perpendicular to each other, making a dihedral angle of 86.32 (2)°. In the crystal, molecules are linked via pairs of O-H⋯O hydrogen bonds, forming inversion dimers. ...[more]

PMID: 22589927

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