1-(2-Hydroxy-3,4-dimethoxyphenyl)-2-(4-methoxyphenyl)ethanone
نویسندگان
چکیده
In the title compound, C(17)H(18)O(5), the pyrogallol group is almost coplanar with the mean plane of the attached carbonyl group [dihedral angle of 1.95 (13)°] and makes a dihedral angle of 56.01 (10)° with the other benzene ring. Of the three meth-oxy groups, only one is significantly twisted relative to its attached benzene ring [C-O-C-C torsion angles of 4.0 (5), 3.9 (6) and -106.3 (4)°]. Intra-molecular O-H⋯O and C-H⋯O hydrogen bonds help to establish the conformation, and the packing is consolidated by C-H⋯O inter-actions and π-π stacking interactions [centroid-centroid separation = 3.735 (2) Å].
منابع مشابه
1-(5-Bromo-2-hydroxy-4-methoxyphenyl)ethanone
In the title compound, C(9)H(9)BrO(3), the dihedral angle between the ethanone group and the aromatic ring is 3.6 (2)°. The mol-ecular conformation is consolidated by an intra-molecular O-H⋯O hydrogen bond. The crystal structure is stabilized by π-π inter-actions between the benzene rings [centroid-centroid distance = 3.588 (2) Å].
متن کامل1-(4-Hydroxy-3,5-dimethoxyphenyl)ethanone
In the title mol-ecule, C(10)H(12)O(4), the non-H atoms are essentially coplanar (r.m.s. deviation = 0.033 Å). In the crystal, mol-ecules are linked into chains along [001] by O-H⋯O hydrogen bonds.
متن کامل2,2-Dibromo-1-(4-hydroxy-3-methoxyphenyl)ethanone
The mol-ecule of the title compound, C(9)H(8)Br(2)O(3), is stabilized by an intra-molecular O-H⋯O inter-action. Inter-molecular C-H⋯O inter-actions connect mol-ecules into a two-dimensional array in the bc plane; connections between these are afforded by π-π stacking inter-actions [centroid-centroid distance 3.596 (5) Å].
متن کامل1-(2-Hydroxy-5-methoxyphenyl)ethan-1-one N-[(E)-1-(2-hydroxy-5-methoxyphenyl)ethylidene]hydrazone
In the title mol-ecule, C(18)H(20)N(2)O(4), which resides on a crystallographic centre of inversion (at the centre of the N-N bond), all non-H atoms apart from the meth-oxy substituent are approximately coplanar. The structure displays intra-molecular O-H⋯N hydrogen bonding.
متن کامل3-(4-Methoxyphenyl)-1-(2-nitrophenyl)prop-2-en-1-one
The title compound, C(16)H(13)NO(4), was prepared from 2-nitrylhypnone [systematic name: 1-(2-nitrophenyl)ethanone] and 4-methoxy-benzophenone by a Claisen-Schmidt condensation. The dihedral angle formed by the two benzene rings is 80.73 (2). The crystal packing is stabilized by inter-molecular C-H⋯O hydrogen bonds.
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