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3-Amino-phenyl naphthalene-1-sulfonate.

ABSTRACT: In the title compound, C(16)H(13)NO(3)S, the plane of the naphthalene ring system forms a dihedral angle of 64.66 (10)° with the benzene ring. The mol-ecular structure is stabilized by weak intra-molecular C-H⋯O inter-actions and the crystal packing is stabilized by weak inter-molecular N-H⋯O and C-H⋯O inter-actions and by π-π stacking inter-actions of the inversion-related naphthalene units [centroid-centroid distance of 3.7373 (14) Å].

SUBMITTER: Vennila JP

PROVIDER: S-EPMC2967982 | biostudies-literature |

REPOSITORIES: biostudies-literature

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4-Amino-phenyl naphthalene-1-sulfonate.

Project description:In the title compound, C(16)H(13)NO(3)S, the plane of the amino-benzene ring makes a dihedral angle of 61.04 (6)° with the naphthalene ring system. Both ring systems form weak intra-molecular C-H⋯O hydrogen bonds with the sulfonate group. In the crystal structure, weak inter-molecular N-H⋯O hydrogen bonds and a C-H⋯π inter-action are observed.

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Project description:In the crystal structure of the title compound, C(16)H(11)NO(5)S, the plane of the naphthalene ring system forms a dihedral angle of 63.39 (8)° with the benzene ring. The nitro group makes a dihedral angle of 10.73 (16)° with the benzene ring. Weak intra- and inter-molecular C-H⋯O inter-actions are observed.

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Bis(pyridinium) naphthalene-1,5-di-sulfonate dihydrate.

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Project description:The title compound, C(19)H(34)N(+)·C(10)H(7)O(4)S(-), is a charge-control agent used for toners in electrophotography. In the crystal structure, centrosymmetric anions associate through O-H?O hydrogen bonds formed between the O-H group of one anion and the sulfonate O atom of a neighbor. The components of the dimer are offset with respect to each other so that the separation between the two parallel naphthalene skeletons is about 1.6?Å. The ethyl residues of two of the butyl groups are disordered and were modelled over two postions (site occupancies = 0.33/0.67 and 0.34/0.66).

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