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1-Dodec-yloxy-4-nitro-benzene.

ABSTRACT: The asymmetric unit of the title compound, C(18)H(29)NO(3), contains two independent mol-ecules. The benzene ring and the mean plane of the alkyl unit form dihedral angles of 83.69 (12) and 77.14 (11)° in the two mol-ecules. In the crystal structure, weak C-H⋯O hydrogen bonds link mol-ecules into double-layer ribbons extending in [110].

SUBMITTER: Yue XG

PROVIDER: S-EPMC2971973 | biostudies-literature |

REPOSITORIES: biostudies-literature

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1-Dec-yloxy-4-nitro-benzene.

Project description:The title compound, C(16)H(25)NO(3), has a zigzag dec-yloxy chain para to the nitro group of the aromatic ring. There are two independent mol-ecules; the two rings are aligned at 48.15 (7)°. In the crystal, weak C-H⋯O hydrogen bonds lead to the formation of infinite chains.

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1-(3,3-Dichloro-all-yloxy)-2-nitro-benzene.

Project description:In the title compound, C(9)H(7)Cl(2)NO(3), the dihedral angle between the benzene ring and the plane of the nitro group is 50.2?(1)°, and that between the benzene ring and the best plane through the dichloro-allyl fragment is 40.1?(1)°.

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1,4-Dihex-yloxy-2,5-bis-(2-nitro-phen-yl)benzene.

Project description:The title compound, C(30)H(36)N(2)O(6), was prepared via twofold Suzuki coupling of a diboronic acid with bromo-nitro-benzene. The mol-ecule is located on a crystallographic inversion centre. The lateral benzene ring and the central ring make a dihedral angle of 48.75 (14)° and the nitro group is twisted by 41.47 (13)° out of the plane of the benzene ring. The nitro and hex-yloxy groups are in close proximity and the hex-yloxy chain adopts an all-anti conformation.

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Project description:In the title compound, C(19)H(29)NO, the C-C and C-N bond distances of the benzonitrile group are 1.445?(2) and 1.157?(2)?Å, respectively. The aliphatic fragment adopts a bent zigzag arangement which differs from the planar zigzag arrangement normally observed in n-alkanes or long-chain alkyl-benzenes. In the crystal, inversion dimers linked by pairs of C-H?O hydrogen bonds occur. A C-H?N inter-action also occurs. In the crystal, mol-ecules are packed with the nitrile and aliphatic groups oriented in a head-to-tail fashion involving, forming a ripple-like motif along the a axis.

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1-[(3-Benz-yloxy-2-nitro-phen-oxy)meth-yl]benzene.

Project description:The asymmetric unit of the title compound, C(20)H(17)NO(4), consists of two crystallographically independent mol-ecules. In one of the mol-ecules, the central benzene ring forms dihedral angles of 2.26?(6) and 58.68?(6)° with the terminal benzene rings and the dihedral angle between the terminal benzene rings is 56.45?(6)°. The corresponding values for the other mol-ecule are 35.17?(6), 70.97?(6) and 69.62?(6)°, respectively. In the crystal, an inversion dimer linked by a pair of C-H?O hydrogen bonds occurs for one of the unique mol-ecules. C-H?? and ?-? [centroid-centroid distances = 3.7113?(8) and 3.7216?(7)?Å] inter-actions link the components into a three-dimensional network.

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2-Chloro-1-(3-fluoro-benz-yloxy)-4-nitro-benzene.

Project description:In the title compound, C(13)H(9)ClFNO(3), the benzene rings are oriented at a dihedral angle of 41.23?(5)°. In the crystal structure, inter-molecular C-H?O inter-actions link the mol-ecules in a herring-bone arrangement along the b axis and weak ?-? contacts between the benzene rings [centroid-centroid distance = 3.881?(1)?Å] may further stabilize the structure.

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2-Chloro-4-(3,3-dichloro-all-yloxy)-1-nitro-benzene.

Project description:In the crystal structure of the title compound, C(9)H(6)Cl(3)NO(3), mol-ecules are connected by C-H?O hydrogen bonds, forming chains along the b axis. The dihedral angle between the benzene ring and the plane of the nitro group is 16.2?(1)° and that between the benzene ring and the plane of the dichloro-allyl group is 10.2?(1)°.

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1-(3,3-Dichloro-all-yloxy)-4-methyl-2-nitro-benzene.

Project description:In the title compound, C(10)H(9)Cl(2)NO(3), the dihedral angle between the benzene ring and the plane of the nitro group is 39.1?(1)°, while that between the benzene ring and the plane through the three C and two Cl atoms of the dichloro-all-yloxy unit is 40.1?(1)°. In the crystal, C-H?O hydrogen bonds to the nitro groups form chains along the b axis. These chains are linked by inversion-related pairs of Cl?O inter-actions at a distance of 3.060?(3)?Å, forming sheets approximately parallel to [-201] and generating R(2) (2)(18) rings. ?-? contacts between benzene rings in adjacent sheets, with centroid-centroid distances of 3.671?(2)?Å, stack mol-ecules along c.

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2-(4-Bromo-phen-yl)-5-dodec-yloxy-1,3-thia-zole.

Project description:In the structure of the title compound, C(21)H(30)BrNOS, an important inter-mediate for the preparation of liquid crystal compounds, the saturated C(12) chain shows a linear conformation while the benzene and thia-zole rings are essentially coplanar [dihedral angle = 4.5 (4)°]. The crystal packing shows no significant inter-molecular inter-actions.

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