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(2,7-Dimeth-oxy-naphthalen-1-yl)(4-phen-oxy-phen-yl)methanone.

ABSTRACT: In the title mol-ecule, C25H20O4, the naphthalene and phen-oxy groups are oriented nearly perpendicular with respect to the benzene ring of the benzoyl group, with dihedral angles of 89.61?(5) and 86.13?(6)°, respectively. The crystal structure features C-H?O and C-H?? inter-actions.

SUBMITTER: Sasagawa K

PROVIDER: S-EPMC3588466 | biostudies-literature | 2013 Mar

REPOSITORIES: biostudies-literature

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(2,7-Dimeth-oxy-naphthalen-1-yl)(4-phen-oxy-phen-yl)methanone.

Sasagawa Kosuke K Sakamoto Rei R Hijikata Daichi D Yonezawa Noriyuki N Okamoto Akiko A

Acta crystallographica. Section E, Structure reports online 20130223 Pt 3

In the title mol-ecule, C25H20O4, the naphthalene and phen-oxy groups are oriented nearly perpendicular with respect to the benzene ring of the benzoyl group, with dihedral angles of 89.61 (5) and 86.13 (6)°, respectively. The crystal structure features C-H⋯O and C-H⋯π inter-actions. ...[more]

PMID: 23476609

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(2,7-Dimeth-oxy-naphthalen-1-yl)(phen-yl)methanone.

Project description:The asymmetric unit of the title compound, C(19)H(16)O(3), contains three independent conformers. Each of the three conformers has essentially the same feature of non-coplanar aromatic rings whereby the aroyl group at the 1-position of the naphthalene ring is twisted in a perpendicular manner to the naphthalene ring. The dihedral angles between the benzene ring planes and the naphthalene ring systems are 75.34?(7), 86.47?(7) and 76.55?(6)° in the three conformers. The crystal structure is stabilized by inter-molecular C-H?O hydrogen bonds.

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(2,7-Dimeth-oxy-naphthalen-1-yl)(4-meth-oxy-phen-yl)methanone.

Project description:In the mol-ecule of the title compound, C20H18O4, the dihedral angle between the naphthalene ring system and the benzene ring is 81.74?(5)°. An inter-molecular C-H?O inter-action is formed between an H atom at the 6-position of the naphthalene ring and the O atom of the meth-oxy group at the 7-position.

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Project description:In the title compound, C(19)H(15)FO(3), the dihedral angle between the naphthalene ring system and the benzene ring is 80.46?(4)°. In the crystal, mol-ecules are linked by inter-molecular C-H?O hydrogen bonds into chains parallel to the b axis.

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(8-Benzoyl-2,7-dimeth-oxy-naphthalen-1-yl)(4-phen-oxy-phen-yl)methanone.

Project description:In the mol-ecule of the title compound, C32H24O5, the benzoyl group and the 4-phenoxy substituted benzoyl group at the 1- and 8-positions of the naphthalene ring system are aligned almost anti-parallel. The two benzene rings make a dihedral angle of 21.18?(10)°, and are inclined to the naphthalene ring system by 86.53?(9) and 82.95?(8)°, respectively. In the crystal, C-H?O inter-actions are observed involving aromatic and meth-oxy H atoms with ketonic carbonyl O atoms, as well as C-H?? inter-actions between aromatic H atoms and the ?-systems of naphthalene and benzene rings. These interactions form a three-dimensional architecture and afford a waved alignment of the naphthalene ring systems along the c axis.

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(3,5-Dimethyl-phen-yl)[8-(3,5-dimethyl-benzo-yl)-2,7-dimeth-oxy-naphthalen-1-yl]methanone.

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Project description:In the title compound, C(32)H(32)O(4), the dihedral angle between the two benzene rings of the 2,4,6-trimethyl-benzoyl groups is 71.43?(7)°. The dihedral angles between the two benzene rings and the naphthalene ring system are 81.58?(5) and 84.92?(6)°. An intra-molecular C-H?O inter-action is observed.

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[8-(4-Chloro-benzo-yl)-2,7-dimeth-oxy-naphthalen-1-yl](2,4,6-trimethyl-phen-yl)methanone.

Project description:In the title compound, C(29)H(25)ClO(4), the dihedral angle between the benzene rings of the 2,4,6-trimethyl-benzoyl group and the 4-chloro-benzoyl group is 65.19 (9)°. The dihedral angles between the naphthalene ring system and the benzene rings of the 2,4,6-trimethyl-benzoyl group and the 4-chloro-benzoyl group are 85.66 (8) and 69.48 (8)°, respectively. In the crystal, two types of inter-molecular C-H⋯O inter-actions and an intra-molecular C-H⋯O inter-action are observed. Moreover, there is a short intra-molecular C=O⋯C=O contact of 2.614 (2) Å between the benzoyl substituents.

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