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(8-Bromo-2,7-dimeth-oxy-1-naphth-yl)(4-chloro-phenyl)methanone.

ABSTRACT: In the title compound, C(19)H(14)BrClO(3), the naphthalene ring system and the benzene ring make a dihedral angle of 77.36 (10)°. The conformation around the central C=O group is such that the C=O bond vector forms a larger angle to the plane of the naphthalene ring system than to the plane of the benzene ring, viz. 75.73 (15)° versus 2.33 (17)°. In the crystal structure, a π-π inter-action is formed between naphthalene ring systems, with a centroid-centroid distance of 3.8363 (14) Å and a lateral offset of 1.606 Å. Inter-molecular C-H⋯Br and C-H⋯O hydrogen bonds and a C-H⋯π contact are present in the crystal structure.

SUBMITTER: Mitsui R

PROVIDER: S-EPMC2983951 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(4-Bromo-phen-yl)(2,7-dimeth-oxy-1-naphth-yl)methanone.

Project description:In the title compound, C(19)H(15)BrO(3), the dihedral angle between the naphthalene ring system and the benzene ring is 72.02?(9)°. The bridging carbonyl C-C(=O)-C plane makes dihedral angles of 70.88?(10) and 1.87?(12)°, respectively, with the naphthalene ring system and the benzene ring. In the crystal, two types of weak inter-molecular C-H?O inter-actions and a short Br?C contact [3.345?(2)?Å] are observed.

| S-EPMC3009358 | biostudies-literature

(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.

| S-EPMC2983196 | biostudies-literature

[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.

| S-EPMC3297949 | biostudies-literature

(4-Bromo-phen-yl)(3,6-dimeth-oxy-2-naphth-yl)methanone.

Project description:In the title compound, C(19)H(15)BrO(3), the dihedral angle between the naphthalene ring system and the benzene ring is 62.51?(8)°. The bridging carbonyl C-C(=O)-C plane makes dihedral angles of 47.07?(6)° with the naphthalene ring system and 24.20?(10)° with the benzene ring. A weak inter-molecular C-H?O hydrogen bond exists between the H atom of one meth-oxy group and the O atom of the other meth-oxy group in an adjacent mol-ecule. The crystal packing is additionally stabilized by two types of weak inter-molecular inter-actions involving the Br atom, C-H?Br and Br?O [3.2802?(14)?Å].

| S-EPMC3009183 | biostudies-other

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

Project description: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.

| S-EPMC3588466 | biostudies-literature

(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.

| S-EPMC3588548 | biostudies-literature

(3,6-Dimeth-oxy-2-naphth-yl)(4-fluoro-benzo-yl)methanone.

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 62.93?(5)°. The bridging carbonyl C-C(=O)-C plane makes dihedral angles of 45.55?(6) and 28.62?(7)°, respectively, with the naphthalene ring system and the benzene ring. Weak inter-molecular C-H?O hydrogen bonds and C-H?? inter-actions stabilize the crystal packing.

| S-EPMC2983725 | biostudies-literature

[2,7-Dimeth-oxy-8-(4-meth-oxy-benzo-yl)naphthalen-1-yl](4-meth-oxy-phen-yl)methanone chloro-form monosolvate.

Project description:In the title compound, C28H24O6·CHCl3, the two 4-meth-oxy-benzoyl groups at the 1- and 8-positions of the naphthalene ring system are aligned almost anti-parallel, the benzene rings making a dihedral angle of 25.76?(7)°. The naphthalene ring system makes dihedral angles of 72.51?(7) and 73.33?(7)° with the benzene rings. In the crystal, the naphthalene mol-ecules are linked by C-H?O inter-actions, forming a helical chain along the b-axis direction. A C-H?Cl inter-action is also observed between the aroylated naphthalene and chloro-form mol-ecules. The chloro-form mol-ecule is disordered over two positions with site occupancies of 0.478?(5) and 0.522?(5).

| S-EPMC3588358 | biostudies-literature

(2,7-Dimeth-oxy-naphthalen-1-yl)(3-nitro-phen-yl)methanone.

Project description:The title compound, C(19)H(15)NO(5), has an intra-molecular C-H?O=C hydrogen bond between a naphthalene H atom and the O atom of the carbonyl group. The inter-planar angle between the naphthalene ring system and the benzene ring is 69.59?(5)°. The dihedral angle between the bridging carbonyl C-C(=O)-C plane and the naphthalene ring system is 61.02?(6)°, which is far larger than that between the bridging carbonyl plane and the benzene ring [12.68?(7)°]. The nitro group is slightly out of the plane of the benzene ring [O-N-C-C torsion angle = 4.97?(17)°]. In the crystal, the packing is mainly stabilized by C-H?O inter-actions between an H atom of the benzene ring and an O atom of the nitro group.

| S-EPMC3009278 | biostudies-literature

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

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.

| S-EPMC3120321 | biostudies-literature

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