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ABSTRACT: In the title compound, C(35)H(28)O(6)·C(7)H(8), the dihedral angle between the mean planes through the naphthalene ring systems of the dibenzo[a,g]fluorene moiety is 22.44 (3)°. The aromatic ring system of the naphthalenone unit is approximately perpendicular to the mean plane of the five-membered ring, forming a dihedral angle of 87.51 (5)°. An intra-molecular C-H⋯O hydrogen bond is observed. In the crystal, pairs of C-H⋯π inter-actions link the mol-ecules, forming inversion dimers.
Acta Crystallographica Section E Structure Reports Online 10/2012; 68(Pt 10):o2919. · 0.35 Impact Factor
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ABSTRACT: In the title compound, C(23)H(18)O(3), the dihedral angle between the two naphthalene ring systems is 78.02 (3)°. The bridging carbonyl C-C(=O)-C plane makes a dihedral angle of 70.56 (5)° with the naphthalene ring system in the 2,7-dimeth-oxy-naphthalene moiety and a dihedral angle of 11.53 (5)° with the naphthalene ring system in the naphthoyl group. In the crystal, adjacent mol-ecules are linked via C-H⋯π inter-actions, forming chains along [010].
Acta Crystallographica Section E Structure Reports Online 09/2012; 68(Pt 9):o2653. · 0.35 Impact Factor
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ABSTRACT: In the title mol-ecule, C(23)H(18)O(3), the dihedral angle between the two naphthalene ring systems is 80.44 (4)°. The mean plane of the bridging carbonyl C-C(=O)-C group makes a torsion angle of -68.55 (17)° with the naphthalene system of the 2,7-dimeth-oxy-naphthalene unit and a torsion angle of -9.01 (19)° with the naphthalene ring system of the naphthoyl group. In the crystal, a weak C-H⋯O hydrogen bond occurs between the carbonyl O atom and an H atom of the naphthalene ring in the 2,7-dimeth-oxy-naphthalene unit of a symmetry-related mol-ecule.
Acta Crystallographica Section E Structure Reports Online 08/2012; 68(Pt 8):o2595. · 0.35 Impact Factor
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ABSTRACT: 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.
Acta Crystallographica Section E Structure Reports Online 06/2011; 67(Pt 6):o1466. · 0.35 Impact Factor
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ABSTRACT: The asymmetric unit of the title compound, C(26)H(20)O(4), contains two independent conformers. The aromatic rings of the aroyl groups are twisted with respect to the naphthalene ring systems to form dihedral angles of 66.58 (6) and 66.45 (6)° in one conformer, and 75.00 (7) and 81.17 (6)° in the other conformer. The crystal packing is stabilized by weak inter-molecular C-H⋯O hydrogen bonds and by C-H⋯π inter-actions.
Acta Crystallographica Section E Structure Reports Online 05/2011; 67(Pt 5):o1250. · 0.35 Impact Factor
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ABSTRACT: In the crystal structure of the title cocrystal, 2C(24)H(18)ClNO(2)·C(6)H(12)N(2), the 1,4-diaza-bicyclo-[2.2.2]octane mol-ecule is located on a twofold rotation axis and linked to the two triaryl-imine mol-ecules by O-H⋯N hydrogen bonds, forming a 2:1 aggregate. C-H⋯Cl inter-actions are also observed. In the triaryl-imine mol-ecule, the naphthalene ring system makes dihedral angles of 80.39 (6) and 82.35 (6)°, respectively, with the phenyl and benzene rings. The dihedral angle between these two latter rings is 87.09 (7)°.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 10):o2498. · 0.35 Impact Factor
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ABSTRACT: In the title compound, C(19)H(14)ClNO(5), the aroyl group is attached to the naphthalene ring system with a non-coplanar configuration. The dihedral angle between naphthalene ring system and benzene ring is 70.62 (6)°. The nitro group is oriented in parallel with the adjacent carbonyl plane. The torsion angle of the carbonyl group and naphthalene ring is 54.68 (19)° (C-C-C-O), and that of nitro group and naphthalene ring is 54.26 (18)° (O-N-C-C). In the crystal, π-π inter-actions between naphthalene systems [centroid-centroid distances = 3.5633 (9), 3,5634 (9), and 3.9758(9) Å], C-H⋯O hydrogen bonds, inter-molecular N-O⋯Cl inter-actions [2.9937 (12) Å] and C-H⋯π contacts are observed.
Acta Crystallographica Section E Structure Reports Online 01/2010; 67(Pt 1):o155. · 0.35 Impact Factor
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ABSTRACT: In the title compound, C(24)H(18)N(2)O(4), the phenyl and benzene rings are both oriented almost perpendicular to the naphthalene ring system at dihedral angles of 70.97 (5) and 84.64 (5)°. The former rings make a dihedral angle of 87.15 (6)°. The mol-ecule has a Z configuration about the C=N bond. In the crystal, mol-ecules are connected by a pair of inter-molecular O-H⋯O hydrogen bonds between the hy-droxy and the nitro group, forming centrosymmetric dimers. Inter-molecular C-H⋯O inter-actions also occur.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 11):o2738. · 0.35 Impact Factor
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ABSTRACT: In the title compound, C(19)H(16)O(3), an intra-molecular O-H⋯O=C hydrogen bond is formed between the hy-droxy and carbonyl groups on the naphthalene ring system, resulting in an S(6) ring. The angles between the C=O bond vector and the least-squares planes of the naphthalene ring system and the benzene ring are 27.63 (6) and 47.99 (7)°, respectively. The dihedral angle between the latter planes is 61.39 (5)°. In the crystal, two mol-ecules are connected by pairs of inter-molecular O-H⋯O=C hydrogen bonds, forming centrosymmetric dimers with an R(2) (2)(4) graph-set motif. The mol-ecular packing features C-H⋯π interactions.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 11):o2820-1. · 0.35 Impact Factor
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ABSTRACT: In the title compound, C(28)H(24)O(4), the two 4-methyl-benzoyl groups at the 1- and 8-positions of the naphthalene ring system are aligned almost anti-parallel, the dihedral angle between the two phenyl rings being 9.64 (7)°. The dihedral angles between the two phenyl rings and the naphthalene ring system are 71.82 (6) and 71.58 (6)°. In the crystal, inter-molecular C-H⋯O inter-actions between the carbonyl oxygen and aromatic hydrogen are observed.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 11):o2752. · 0.35 Impact Factor
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ABSTRACT: 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].
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 11):o2795. · 0.35 Impact Factor
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ABSTRACT: 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.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 11):o2939. · 0.35 Impact Factor
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ABSTRACT: 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⋯π inter-actions stabilize the crystal packing.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 3):o712. · 0.35 Impact Factor
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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.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 4):o873. · 0.35 Impact Factor
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ABSTRACT: In the title compound, C(18)H(11)Br(2)ClO(3), an intra-molecular O-H⋯O=C hydrogen bond occurs, forming a six-membered ring. The naphthalene ring system and the benzene ring make a dihedral angle of 57.36 (9)°. The central carbonyl C-(C=O)-C group is twisted away from the naphthalene ring system and the benzene ring by 18.61 (15) and 26.25 (16)°, respectively. In the crystal structure, two inter-molecular Br⋯Cl close contacts [3.4927 (7) and 3.4325 (7) Å] are observed.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 6):o1304. · 0.35 Impact Factor
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ABSTRACT: The title compound, C(26)H(18)F(2)O(4), is a naphthalene derivative in which the two aroyl groups at the 1- and 8-positions (peri positions) are anti to each other. There is an appreciable difference in the dihedral angles between the naphthalene ring system and the two benzene rings [66.88 (7)° and 88.09 (6)°]. In the crystal, weak C-H⋯O inter-actions involving one of the carbonyl groups and an aromatic C-H group ortho to the F atom seem to stabilize the packing of the mol-ecules.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 2):o329. · 0.35 Impact Factor
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ABSTRACT: In the title mol-ecule {systematic name: [2,7-dimethoxy-8-(4-phenoxybenzoyl)naphthalen-1-yl](4-phenoxyphenyl)methan-one}, C(38)H(28)O(6), the 4-phen-oxy-benzoyl units adopt a syn orientation with respect to the naphthalene ring system. The inter-nal benzene rings, A and B, make dihedral angles of 86.72 (5) and 79.22 (5)° with the naphthalene ring system. The two terminal benzene rings, C and D, of the 4-phen-oxy-benzoyl groups are twisted with respect to benzene rings A and B, with dihedral angles of A/C = 62.72 (8) and B/D = 87.61 (6)°. In the crystal, H atoms in the naphthalene system make two types of inter-molecular C-H⋯O inter-actions with the carbonyl O atom and the phenyl etheral O atom of neighbouring mol-ecules. Mol-ecules are further linked by C-H⋯π inter-actions involving a H atom of terminal benzene ring D and the π-system of the inter-nal benzene ring A, forming dimers centered about an inversion center.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 11):o2902-3. · 0.35 Impact Factor
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ABSTRACT: The title compound {systematic name: [8-(4-aminobenzoyl)-2,7-dimethoxynaphthalen-1-yl](4-aminophenyl)methanone}, C(26)H(22)O(4)N(2), possesses crystallographically imposed twofold symmetry, with two C atoms lying on the rotation axis. In the crystal, the mol-ecules inter-act through inter-molecular N-H⋯O hydrogen bonds between the amino and meth-oxy groups on the naphthalene ring systems and N-H⋯π inter-actions between the amino groups and the naphthalene rings. Furthermore, weak C-H⋯O hydrogen bonds and π-π stacking inter-actions between the benzene rings are observed. The centroid-centroid and inter-planar distances between the benzene rings of the aroyl group and the naphthalene ring systems of adjacent mol-ecules are 3.6954 (8) and 3.2375 (5) Å, respectively. The dihedral angle between the mean planes of the benzene ring and the naphthalene ring system is 83.59 (5)°. The benzene ring and the carbonyl group in the benzoyl unit are almost coplanar [C-C-C-O torsion angle = 175.91 (10)°].
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 11):o2904-5. · 0.35 Impact Factor
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ABSTRACT: The asymmetric unit of the title compound, C(18)H(11)Br(2)ClO(3), contains two crystallographically independent mol-ecules in which the dihedral angles between the naphthalene ring systems and the benzene rings are 55.64 (11) and 60.50 (11)°. In each mol-ecule, an intra-molecular O-H⋯O=C hydrogen bond generates a six-membered ring. In the crystal structure, inter-molecular C-H⋯O and C-H⋯Cl hydrogen bonds and two different Br⋯O halogen bonds [2.9850 (19) and 3.2169 (19) Å] are observed.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 7):o1761. · 0.35 Impact Factor
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ABSTRACT: In the mol-ecule of the title compound, C(18)H(14)O(3), there is an intra-molecular O-H⋯O=C hydrogen bond between the carbonyl and hy-droxy groups on the naphthalene ring system. The angles between the C=O bond vector and the least-squares planes of the naphthalene ring system and the phenyl ring are 30.58 (6) and 42.82 (7)°, respectively, while the dihedral angle between the naphthalene ring system and the phenyl ring is 58.65 (5)°. In the crystal, mol-ecules are connected by pairs of inter-molecular O-H⋯O=C hydrogen bonds, forming centrosymmetric dimers.
Acta Crystallographica Section E Structure Reports Online 01/2010; 66(Pt 10):o2677. · 0.35 Impact Factor
