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1-(3,4-Dihy-droxy-phen-yl)hexan-1-one.

ABSTRACT: In the title compound, C(12)H(16)O(3), a fully extened hexyl carbon chain is attached to a benzene ring; the mean planes formed by the atoms in the benzene ring and the hexa-none are inclined at an angle 8.5 (2)° with respect to each other. In the crystal, inter-molecular O-H⋯O hydrogen bonds join the mol-ecules into an infinite sheet.

SUBMITTER: Peng XC

PROVIDER: S-EPMC3006993 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Pentyl (E)-3-(3,4-dihy-droxy-phen-yl)acrylate.

Project description:In the mol-ecule of the title compound, C(14)H(18)O(4), the C=C double bond is in an E configuration. The mol-ecule is almost planar (r.m.s. deviation of all non-H atoms = 0.04?Å). An intra-molecular O-H?O hydrogen bond occurs. In the crystal, inter-molecular O-H?O inter-actions link the mol-ecules into ribbons extending in [110].

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Project description:The title mol-ecule, C(15)H(20)O(4), has an E conformation about its C=C bond and is almost planar (r.m.s. deviation of all non-H atoms = 0.04?Å). The crystal structurere features O-H?O and C-H?O hydrogen bonds.

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(E)-Methyl 3-(3,4-dihy-droxy-phen-yl)acrylate.

Project description:The benzene ring in the title compound, C(10)H(10)O(4), makes an angle of 4.4?(1)° with the C-C-C-O linker. The hy-droxy groups are involved in both intra- and inter-molecular O-H?O hydrogen bonds. The crystal packing is stabilized by O-H?O hydrogen-bonding inter-actions. The mol-ecules of the caffeic acid ester form a dimeric structure in a head-to-head manner along the a axis through O-H?O hydrogen bonds. The dimers inter-act with one another through O-H?O hydrogen bonds, forming supermolecular chains. These chains are further extended through C-H?O hydrogen bonds as well as van der Waals inter-actions into the final three-dimensional architecture.

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Project description:The asymmetric unit of the title salt, C(6)H(8)N(+)·C(7)H(5)O(4) (-), contains two anilinium cations and two 3,4-dihy-droxy-benzoate anions. An intra-moleculer O-H?O hydrogen bond occurs in each anion. In the crystal, O-H?O and N-H?O hydrogen bonds link the cations and anions into a three-dimensional array. The structure is further consolidated by weak C-H?O inter-actions.

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