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Tetra-aqua-(1,10-phenanthroline-κN,N')magnesium(II) bis-[(2,4-dichloro-phen-yl)acetate].

ABSTRACT: In the mononuclear title complex, [Mg(C(12)H(8)N(2))(H(2)O)(4)](C(8)H(5)Cl(2)O(2))(2), each Mg(II) ion is hexa-coordinated by two N atoms from a 1,10-phenanthroline ligand [Mg-N = 2.233 (2) Å] and four water mol-ecules [Mg-OW = 2.033 (2) and 2.043 (1) Å] in a distorted octa-hedral geometry. A twofold rotation axis passes through the Mg atom. In the crystal structure, the cations and anions are linked by inter-molecular O-H⋯O hydrogen bonds and π-π stacking inter-actions [centroid-centroid distance = 3.804 (2) Å] into layers parallel to the ac plane.

SUBMITTER: Hao XM

PROVIDER: S-EPMC2961968 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Tetra-aqua-bis[2-(2,4-dichloro-phen-oxy)acetato]nickel(II).

Project description:In the title complex, [Ni(C(8)H(5)Cl(2)O(3))(2)(H(2)O)(4)], the Ni(II) atom (site symmetry ) adopts a slightly distorted NiO(6) octa-hedral coordination. An intra-molecular O-H⋯O hydrogen bond helps to establish the conformation. In the crystal, further O-H⋯O hydrogen bonds link the mol-ecules.

| S-EPMC2969976 | biostudies-literature

Bis(μ-2,4-dihy-droxy-benzoato-κO:O')bis-[aqua-(2,4-dihy-droxy-benzoato-κO)(1,10-phenanthroline-κN,N')cadmium(II)].

Project description:In the title centrosymmetric dimeric Cd(II) complex, [Cd(2)(C(7)H(5)O(4))(4)(C(12)H(8)N(2))(2)(H(2)O)(2)], the Cd(II) cation is coord-inated by a bidentate phenanthroline (phen) ligand, three dihy-droxy-benzoate (dhba) anions and one water mol-ecule in a distorted CdN(2)O(4) octa-hedral geometry. Among the dhba anions, two anions bridge two Cd(II) cations to form the dimeric complex with significant different Cd-O bond distances of 2.2215 (19) and 2.406 (2) Å. The centroid-centroid distance of 3.4615 (19) Å between two nearly parallel benzene rings of the dhba and phen ligands coordinating to the same Cd(II) cation indicates the existence of intra-molecular π-π stacking in the complex. Extensive O-H⋯O hydrogen bonding and inter-molecular weak C-H⋯O hydrogen bonding help to stabilize the crystal structure. One hy-droxy group of the monodentate dhba ligand is disordered over two sites with a site-occupancy ratio of 0.9:0.1.

| S-EPMC3006915 | biostudies-literature

Aqua-bis(dichloro-acetato-?O)(1,10-phenanthroline-?N,N')copper(II).

Project description:In the title complex, [Cu(C(2)HCl(2)O(2))(2)(C(12)H(8)N(2))(H(2)O)], the Cu(II) ion has a distorted square-pyramidal coordination geometry. The equatorial positions are occupied by two N atoms from a 1,10-phenanthroline ligand [Cu-N = 1.994?(3) and 2.027?(3)?Å] and two O atoms from dichloro-acetate ligands and a water mol-ecule [Cu-O = 1.971?(2) and 1.939?(2)?Å]. One O atom from another dichloro-acetate ligand occupies the apical positon [Cu-O = 2.152?(3)?Å]. Inter-molecular O-H?O hydrogen bonds link the mol-ecules into centrosymmetric dimers. The crystal packing also exhibits weak inter-molecular C-H?O hydrogen bonds, ?-? inter-actions [centroid-centroid distance = 3.734?(2)?Å] and short inter-molecular Cl?Cl contacts [3.306?(2) and 3.278?(2)?Å].

| S-EPMC2968015 | biostudies-literature

Tetra-aqua-(1,10-phenanthroline-?N,N')cadmium(II) sulfate dihydrate.

Project description:In the title mononuclear complex, [Cd(C(12)H(8)N(2))(H(2)O)(4)]SO(4)·2H(2)O, the coordination geometry around the Cd(II) atom is a distorted octa-hedron, with two aqua ligands occupying the axial positions. Inter-molecular O-H?O hydrogen bonds lead to the formation of a two-dimensional layer structure parallel to (001). The layers are connected by ?-? inter-actions between the pyridyl and benzene rings of the phenanthroline ligands [centroid-centroid distances = 3.591?(1) and 3.610?(1)?Å].

| S-EPMC3007401 | biostudies-literature

Aqua-bis(2-chloro-acetato-κO)(1,10-phenanthroline-κN,N')copper(II).

Project description:In the title complex, [Cu(C(2)H(2)ClO(2))(2)(C(12)H(8)N(2))(H(2)O)], the Cu(II) ion is five-coordinated by two N atoms [Cu-N = 2.005 (2) and 2.029 (2) Å] from the 1,10-phenanthroline ligand, two O atoms [Cu-O = 1.943 (2)-1.966 (2) Å] from two 2-chloro-acetate ligands and one water mol-ecule [Cu-O = 2.253 (2) Å] in a distorted square-pyramidal geometry. The crystal structure exhibits inter-molecular O-H⋯O hydrogen bonds, short Cl⋯Cl contacts [3.334 (1) Å] and π-π inter-actions [centroid-centroid distance 3.621 (11) Å].

| S-EPMC2960263 | biostudies-literature

Benzimidazolium 2-(2,4-dichloro-phen-oxy)acetate monohydrate.

Project description:In the crystal of the title hydrated mol-ecular salt, C(7)H(7)N(2) (+)·C(8)H(5)Cl(2)O(3)·H(2)O, the components inter-act by way of N-H?O and O-H?O hydrogen bonds, leading to chains propagating in [100].

| S-EPMC2972003 | biostudies-literature

Ammonium 2-(2,4-dichloro-phen-oxy)acetate hemihydrate.

Project description:The title compound, NH(4) (+)·C(8)H(7)Cl(2)O(6) (-)·0.5H(2)O, was prepared by the reaction of 2-(2,4-dichloro-phen-oxy)-acetic acid and ammonia in water at 367?K. The mol-ecular structure and packing are stabilized by N-H?O and O-H?O inter-molecular hydrogen-bond inter-actions.

| S-EPMC2977423 | biostudies-literature

2,9-Dichloro-1,10-phenanthroline.

Project description:The title mol-ecule, C(12)H(6)Cl(2)N(2), is almost planar (the r.m.s. deviation of C atoms is 0.04 Å). The C-N and C-C distances indicate delocalization of the π-electrons in the aromatic fused-ring system.

| S-EPMC2969030 | biostudies-literature

Tetra-aqua-(1,10-phenanthroline-5,6-dione-?N,N')cobalt(II) dinitrate.

Project description:The asymmetric unit of the title compound, [Co(C(12)H(6)N(2)O(2))(H(2)O)(4)](NO(3))(2), consists of a Co(II) complex cation with twofold rotational symmetry and two nitrate anions. The Co(II) atom has a distorted octa-hedral geometry with the basal plane occupied by two 1,10-phenanthroline-5,6-dione N atoms and two aqua O atoms, with the other two aqua ligands in axial positions. The aqua ligands are involved in extensive hydrogen bonding to nitrate and 1,10-phenanthroline-5,6-dione O atoms.

| S-EPMC2969730 | biostudies-literature

Aqua-(imino-diacetato-κO,N,O')(1,10-phenanthroline-κN,N')zinc(II) sesquihydrate.

Project description:The imino-diacetate dianion in the title compound, [Zn(C(4)H(5)NO(4))(C(12)H(8)N(2))(H(2)O)]·1.5H(2)O, chelates to the Zn(II) center with its N and two O atoms. The metal atom is also chelated by the N-heterocycle and coordinated by one water molecule, leading to a distorted octahedral environment. The dianion, and coordinated and uncoordinated water mol-ecules inter-act through O-H⋯O hydrogen bonds, generating a three-dimensional network. One of the two uncoordinated water mol-ecules has half-site occupancy. The crystal studied was a non-merohedral twin with a 15% twin component.

| S-EPMC2967921 | biostudies-literature

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