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Bis(4-meth-oxy-benzoato)-κO,O';κO-bis-(nicotinamide-κN)zinc(II).

ABSTRACT: The asymmetric unit of the title complex, [Zn(C(8)H(7)O(3))(2)(C(6)H(6)N(2)O)(2)], contains three crystallographically independent mol-ecules with similar configurations. The Zn(II) cation is coordinated by two N atoms of two nicotinamide ligands and three O atoms from two 4-meth-oxy-benzoate anions in a distorted trigonal-bipyramidal geometry. In each independent mol-ecule, one Zn-O bond distance [2.5181 (12), 2.5931 (12) and 2.4085 (12) Å for the three mol-ecules] is significantly longer than the other two. In the crystal structure, extensive N-H⋯O and C-H⋯O hydrogen bonding links the mol-ecules into a three-dimensional network. π-π contacts between the pyridine rings and between the pyridine and benzene rings [centroid-centroid distances = 3.7655 (9) and 3.8453 (10) Å, respectively] further stabilize the crystal structure.

SUBMITTER: Hokelek T

PROVIDER: S-EPMC3007960 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Bis[4-(methyl-amino)benzoato-κO]bis-(nicotinamide-κN)zinc(II).

Project description:The title zinc complex, [Zn(C(8)H(8)NO(2))(2)(C(6)H(6)N(2)O)(2)], is composed of two monodentate 4-(methyl-amino)benzoate and two monodentate nicotinamide ligands. The coordination around the Zn atom is distorted tetra-hedral. The dihedral angles between the two benzene rings and the two pyridine rings are 78.30 (6) and 68.86 (5)°. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into an infinite three-dimensional network.

| S-EPMC2968013 | biostudies-literature

Diaqua-bis(2-bromo-benzoato-κO)bis-(nicotinamide-κN)zinc(II).

Project description:The title Zn(II) complex, [Zn(C(7)H(4)BrO(2))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], is centrosymmetric with the Zn atom on an inversion center. The mol-ecule contains two 2-bromo-benzoate (BB) and two nicotinamide (NA) ligands and two coordinated water mol-ecules, all ligands being monodentate. The four O atoms in the equatorial plane around the Zn atom form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxyl group and the adjacent benzene ring is 31.14 (12)°, while the pyridine and benzene rings are oriented at a dihedral angle of 83.54 (5)°. In the crystal structure, O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into infinite chains. A weak C-H⋯π inter-action is also present.

| S-EPMC2977639 | biostudies-literature

Diaqua-bis(2-bromo-benzoato-κO)bis-(N,N-diethyl-nicotinamide-κN)zinc(II).

Project description:In the centrosymmetric title complex, [Zn(C(7)H(4)BrO(2))(2)(C(10)H(14)N(2)O)(2)(H(2)O)(2)], the Zn(II) atom is located on an inversion center. The asymmetric unit contains one 2-bromo-benzoate (BB), one diethyl-nicotinamide (DENA) ligand and one coordinating water molecule. The four O atoms in the equatorial plane around the Zn atom form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two N atoms of the DENA ligands in the axial positions. The dihedral angle between the carboxyl group and the adjacent benzene ring is 85.51 (12)°, while the pyridine and benzene rings are oriented at a dihedral angle of 44.07 (6)°. In the crystal structure, O-H⋯O hydrogen bonds link the mol-ecules into infinite chains.

| S-EPMC2977549 | biostudies-literature

Diaqua-bis(2-chloro-benzoato-κO)bis-(nicotinamide-κN)nickel(II).

Project description:The title Ni(II) complex, [Ni(C(7)H(4)ClO(2))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], is centrosymmetric with the Ni atom located on an inversion centre. The mol-ecule contains two 2-chloro-benzoate (CB) and two nicotinamide (NA) ligands and two water mol-ecules, all ligands being monodentate. The four O atoms in the equatorial plane around the Ni atom form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxyl group and the adjacent benzene ring is 29.48 (16)°, while the pyridine and benzene rings are oriented at a dihedral angle of 83.16 (5)°. In the crystal structure, O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into infinite chains. π-π Contacts between the benzene and pyridine rings [centroid-centroid distance = 3.952 (1) Å] may further stabilize the crystal structure. There is also a C-H⋯π inter-action.

| S-EPMC2968958 | biostudies-literature

Diaqua-bis(4-methyl-amino-benzoato-κO)bis-(nicotinamide-κN)nickel(II).

Project description:The title Ni(II) complex, [Ni(C(8)H(8)NO(2))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], is centrosymmetric with the Ni atom on an inversion center. The mol-ecule contains two 4-methyl-amino-benzoate (MAB) and two nicotinamide (NA) ligands and two coordinated water mol-ecules, all ligands being monodentate. The four O atoms in the equatorial plane around the Ni atom form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 2.09 (14)°, while the pyridine and benzene rings are oriented at a dihedral angle of 66.15 (4)°. In the crystal structure, inter-molecular O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network.

| S-EPMC2977638 | biostudies-literature

Diaqua-bis-(2-iodo-benzoato-κO)bis-(nicotinamide-κN(1))copper(II).

Project description:In the title complex, [Cu(C(7)H(4)IO(2))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], the Cu(II) cation is located on an inversion center and is coordinated by two monodentate 2-iodo-benzoate (IB) anions, two nicotinamide (NA) ligands and two water mol-ecules in a distorted octa-hedral coordination geometry. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 32.12 (14)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 82.02 (5)°. The coordinating water mol-ecule links with the carboxyl-ate group via an intra-molecular O-H⋯O hydrogen bond. In the crystal, N-H⋯O, O-H⋯O and weak C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional supra-molecular network.

| S-EPMC3435587 | biostudies-literature

trans-Diaqua-bis-(4-fluoro-benzoato-κO)bis-(nicotinamide-κN)nickel(II).

Project description:In the mononuclear Ni(II) title complex, [Ni(C(7)H(4)FO(2))(2)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], the Ni(II) atom, located on an inversion center, is coordinated by two nicotinamide and two 4-fluoro-benzoate ligands and two water mol-ecules in a distorted N(2)O(4) octa-hedral geometry. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 8.95 (8)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 75.01 (7)°. The water mol-ecule links the adjacent carboxyl-ate O atom via an intra-molecular O-H⋯O hydrogen bond. In the crystal, O-H⋯O, N-H⋯O, C-H⋯O and C-H⋯F hydrogen bonds link the mol-ecules into a three-dimensional network. π-π stacking between parallel pyridine rings [centroid-centroid distance = 3.7287 (11) Å] is also observed.

| S-EPMC3247555 | biostudies-literature

(2,2'-Bipyridine-κN,N')bis-(3-meth-oxy-benzoato-κO,O)copper(II) mono-hydrate.

Project description:The title compound, [Cu(C(8)H(7)O(3))(2)(C(10)H(8)N(2))]·H(2)O, is comprised of a Cu(II) ion, two 3-meth-oxy-benzoate ligands, a 2,2'-bipyridine (bipy) ligand and one uncoordinated water mol-ecule. The Cu(II) ion and the water O atom lie on a twofold axis. The Cu(II) ion exhibits a six-coordinate distorted octa-hedral geometry, with two N atoms from the bipy ligand [Cu-N = 1.9996 (16) Å] and four O atoms from two 3-meth-oxy-benzoate ligands [Cu-O = 1.9551 (15) and 2.6016 (16) Å]. The mol-ecules are linked by O-H⋯O and C-H⋯O hydrogen bonds, forming a three-dimensional network.

| S-EPMC3052164 | biostudies-literature

Bis(4-ethyl-benzoato-κO)bis-(nicotin-amide-κN)zinc(II).

Project description:The title Zn(II) complex, [Zn(C(9)H(9)O(2))(2)(C(6)H(6)N(2)O)(2)], contains two 4-ethyl-benzoate and two nicotinamide monodentate ligands, leading to a distorted tetrahedral coordination of the Zn(II) ion. The dihedral angles between the carboxyl-ate groups and the adjacent benzene rings are 10.33 (13) and 2.38 (11)°, while opposite pyridine and benzene rings are oriented at dihedral angles of 68.46 (5) and 81.09 (6)°. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules, forming a three-dimensional network. C-H⋯O inter-actions also occur as well as two weak C-H⋯π inter-actions involving the benzene rings.

| S-EPMC3051993 | biostudies-literature

Di-aqua-bis-(3-chloro-benzoato-κO)bis-(nicotinamide-κN (1))cobalt(II).

Project description:In the title complex, [Co(C7H4ClO2)2(C6H6N2O)2(H2O)2], the Co(II) atom is located on an inversion center and is coordinated by two 3-chloro-benzoate (CB) anions, two nicotinamide (NA) ligands and two water mol-ecules. The four O atoms in the equatorial plane form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 9.14 (9)°, while the pyridine and benzene rings are oriented at a dihedral angle of 82.18 (8)°. In the crystal, N-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into a two-dimensional network lying parallel to (101). π-π stacking between parallel pyridine rings of adjacent mol-ecules [centroid-centroid distance = 3.7765 (8) Å] further stabilizes the crystal structure.

| S-EPMC3684906 | biostudies-literature

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