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4-(2-Carboxy-benzo-yl)benzoic acid-4,4'-bipyridine (1/1).

ABSTRACT: In the heteromolecular title compound, C(15)H(10)O(5)·C(10)H(8)N(2), the two components are linked by O-H⋯N hydrogen bonds to form four-component ring supra-molecular assemblies. These are further inter-connected with neighbouring mol-ecules by weak inter-molecular C-H⋯π inter-actions and C-H⋯O hydrogen bonds to generate a three-dimensional network.

SUBMITTER: Wang JG

PROVIDER: S-EPMC2959970 | biostudies-literature |

REPOSITORIES: biostudies-literature

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3-Amino-benzoic acid-4,4'-bipyridine (2/3).

Project description:The asymmetric unit of the title compound, 3C(10)H(8)N(2)·2C(7)H(7)NO(2), consists of three mol-ecules of 4,4'-bipyridine (bpy) and two mol-ecules of 3-amino-benzoic acid (bza). Two mol-ecules of bza and two mol-ecules of bpy are connected via O-H?N, N-H?N and N-H?O hydrogen bonds, forming forming infinite double-stranded zigzag chains along the c axis. The third mol-ecule of bpy is linked to the chain by weak C-H?O inter-actions. Adjacent chains are linked via ?-? inter-actions [centroid-centroid distances = 3.759?(3)-3.928?(3)?Å] involving the pyridine rings of bpy mol-ecules, resulting in a sheet-like structure parallel to (100). These sheets are stacked via C-H?? inter-actions, resulting finally in the formation of a three-dimensional supra-molecular structure.

| S-EPMC3415010 | biostudies-literature

4,4'-Bipyridine-3-nitro-benzoic acid (1/2).

Project description:The title compound, C(10)H(8)N(2)·2C(7)H(5)NO(4),was obtained unintentionally as the harvested product of the hydro-thermal reaction between Co(OAc)(2)·4H(2)O and 4,4'-bipyridine in the presence of 3-nitro-phthalic acid. In the reaction, 3-nitro-phthalic acid is transformed into 3-nitro-benzoic acid by an in situ deca-rboxylation reaction, in which the carboxyl-ate group is not deprotonated and is uncoordinated. In the crystal, the uncoordinated 3-nitro-benzoic acid and free 4,4'-bipyridine mol-ecules are linked alternately by O-H?N hydrogen bonds into chains, which are assembled by C-H?O hydrogen bonds into a three-dimensional supra-molecular network.

| S-EPMC2983553 | biostudies-literature

2-[(2-Carboxy-phen-yl)disulfan-yl]benzoic acid-4,4'-bipyridyl N,N'-dioxide (1/2).

Project description:In the title 2:1 adduct, C(14)H(10)O(4)S(2)·0.5C(10)H(8)N(2)O(2), which arose from an unexpected oxidation of a precursor, the dihedral angle between the aromatic rings in the disulfide is 82.51?(11)°. In the crystal, the molecules are linked by O-H?O, O-H?N and C-H?O interactions, generating sheets.

| S-EPMC2979473 | biostudies-literature

2,3,4,5-Tetra-fluoro-benzoic acid-4,4'-bipyridine (2/1).

Project description:The asymmetric unit of the title compound, 2C(7)H(2)F(4)O(2)·C(10)H(8)N(2), contains one mol-ecule of 2,3,4,5-tetra-fluoro-benzoic acid (tfb) and half of a centrosymmetric 4,4'-bipyridine mol-ecule. Inter-molecular O-H?N hydrogen bonds link two tfb mol-ecules and one 4,4'-bipyridine mol-ecule into a trimer. Weak inter-molecular C-H?F inter-actions assemble these trimers into a three-dimensional network structure.

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4,4'-Bipyridine-2-meth-oxy-benzoic acid (1/2).

Project description:The asymmetric unit of the title compound, C(10)H(8)N(2)·2C(8)H(8)O(3), contains two 2-meth-oxy-benzoic acid mol-ecules and one 4,4'-bipyridine mol-ecule. The 4,4'-bipyridine mol-ecule is disordered over two positions in a 1:1 ratio. In the crystal, the 2-meth-oxy-benzoic acid and 4,4'-bipyridine mol-ecules are connected by inter-molecular O-H?N hydrogen bonds. The dihedral angle between the carboxy group and its attached ring is 26.823?(2)°.

| S-EPMC3297321 | biostudies-literature

4,4'-Bipyridine-2,3,4,5,6-penta-fluoro-benzoic acid (1/2).

Project description:In the title 1:2 adduct, C(10)H(8)N(2)·2C(7)HF(5)O(2), the complete 4,4'-bipyridine mol-ecule is generated by a crystallographic twofold axis. The components of the adduct are linked by inter-molecular O-H?N hydrogen bonds and further connected by a combination of C-H?O, C-H?F and F?F [2.859?(2)?Å] inter-actions.

| S-EPMC2970439 | biostudies-literature

4,4'-Bipyridine-4-(p-toluene-sulfonamido)-benzoic acid (1/2).

Project description:In the title compound, C(14)H(13)NO(4)S·0.5C(10)H(8)N(2), the two benzene rings are nearly perpendicular to each other [dihedral angle = 83.21?(10)°]. The bipyridine mol-ecule is centrosymmetric, the mid-point of the C-C bond linking the pyridine rings being located on an inversion center. Inter-molecular N-H?O and O-H?N hydrogen bonds and weak inter-molecular C-H?O hydrogen bonds are present in the crystal structure.

| S-EPMC3200677 | biostudies-literature

Hemi(4,4'-bipyridinium) hexa-fluorido-phosphate bis-(4-amino-benzoic acid) 4,4'-bipyridine monohydrate.

Project description:In the title compound, 0.5C(10)H(10)N(2) (2+)·PF(6) (-)·C(10)H(8)N(2)·2C(7)H(7)NO(2)·H(2)O, the cation is located on a center of symmetry. The crystal structure is determined by a complex three-dimensional network of inter-molecular O-H?O, O-H?N, N-H?N and N-H?F hydrogen bonds. ?-? stacking inter-actions between neighboring pyridyl rings are also present; the centroid-centroid distance is 3.643?(5)?Å. The hexa-fluoridophosphate anion is disordered over two positions with site-occupancy factors of ca 0.6 and 0.4.

| S-EPMC2968380 | biostudies-literature

4,4'-(Ethene-1,2-diyl)dipyridinium bis-[4-(2-carboxy-benzo-yl)benzoate].

Project description:In the crystal structure of the title compound, C(12)H(12)N(2) (2+)·2C(15)H(9)O(5) (-), the cation has site symmetry with the mid-point of C=C bond located on an inversion center. The two benzene rings of the anion are oriented at a dihedral angle 85.87 (6)°. In the crystal, inter-molecular O-H⋯O and N-H⋯O hydrogen bonds link the cations and anions into supra-molecular double chains, which are further connected into a three-dimensional network through inter-molecular C-H⋯O and π-π stacking between parallel pyridine rings [centroid-centroid distance = 3.4413 (12)Å] and between parallel benzene rings [centroid-centroid distance = 3.6116 (14)Å].

| S-EPMC2971962 | biostudies-literature

2-[(2-Acet-oxy-benzo-yl)-oxy]benzoic acid.

Project description:The title compound, C(16)H(12)O(6), is a common impurity of ortho-acetyl-salicylic acid (aspirin). The benzene rings form a dihedral angle of 81.9 (1)° while the acetyl and carboxyl groups form dihedral angles of 74.0 (1) and 26.4 (2)°, respectively, with the benzene rings to which they are bound. In the crystal, mol-ecules are linked by pairs of O-H⋯O hydrogen bonds between the carboxyl groups, forming inversion dimers.

| S-EPMC3393920 | biostudies-literature

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