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Catena-Poly[[di-chlorido-mercury(II)]-?-1,4-bis-[2-(pyridin-4-yl)ethyn-yl]benzene-?(2) N:N'].

ABSTRACT: In the polymeric title compound, [HgCl2(C20H12N2)] n , the Hg(II) atom is located on a twofold rotation axis and the benzene ring of the bidentate bridging 1,4-bis-[2-(pyridin-4-yl)ethyn-yl]benzene (L) ligand is located about a twofold rotation axis. The Hg(II) atom is coordinated by two N atoms of two different L ligands and by two chloride ions in a distorted tetra-hedral geometry. The dihedral angle between the coordinating pyridine and the benzene ring is 12.8?(2)°. The result of the bridging is the formation of a zigzag chain running parallel to [102]. The chains pack with no specific inter-molecular inter-actions between them.

SUBMITTER: Wang B

PROVIDER: S-EPMC4051079 | biostudies-other | 2014 Jun

REPOSITORIES: biostudies-other

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catena-Poly[[di-chlorido-mercury(II)]-μ-1,4-bis-[2-(pyridin-4-yl)ethyn-yl]benzene-κ(2) N:N'].

Wang Bin B Li Ming M Xie Ya-Bo YB

Acta crystallographica. Section E, Structure reports online 20140510 Pt 6

In the polymeric title compound, [HgCl2(C20H12N2)] n , the Hg(II) atom is located on a twofold rotation axis and the benzene ring of the bidentate bridging 1,4-bis-[2-(pyridin-4-yl)ethyn-yl]benzene (L) ligand is located about a twofold rotation axis. The Hg(II) atom is coordinated by two N atoms of two different L ligands and by two chloride ions in a distorted tetra-hedral geometry. The dihedral angle between the coordinating pyridine and the benzene ring is 12.8 (2)°. The result of the bridgin ...[more]

PMID: 24940198

Similar Datasets

catena-Poly[[dichloridomercury(II)]-?-1,4-bis-[(pyridin-2-yl)meth-oxy]benzene-?N:N'].

Project description:In the title compound, [HgCl(2)(C(18)H(16)N(2)O(2))](n), the Hg(II) atom is four-coordinated in a distorted tetra-hedral environment defined by two Cl atoms and two N atoms from two 1,4-bis-(pyridin-2-ylmeth-oxy)benzene ligands. The ligand shows a non-coplanar conformation, in which the dihedral angles between the two terminal pyridine rings and the linking benzene ring are 7.275?(17) and 74.020?(14)°. The flexible ligands link the Hg(II) atoms into a chain running along [010], with an Hg?Hg separation of 10.335?(5)?Å, which is equal to the b axis. The chains are connected by C-H?O and C-H?Cl hydrogen bonds.

| S-EPMC3201560 | biostudies-literature

catena-Poly[[bis-(nitrato-?O)cadmium]bis-[?-1,4-bis-(pyridin-3-yl-meth-oxy)benzene-?N:N']].

Project description:In the title compound, [Cd(NO(3))(2)(C(18)H(16)N(2)O(2))(2)](n), the six-coordinated Cd(II) ion is located on an inversion center and has a distorted octa-hedral environment defined by four N atoms from four 1,4-bis-(pyridin-3-ylmeth-oxy)benzene ligands and two O atoms from two nitrate anions. The ligands link the Cd(II) ions into a ribbon-like structure running along [201]. One O atom of the nitrate anion is disordered over two positions with site-occupancy factors of 0.59?(2) and 0.41?(2).

| S-EPMC3200741 | biostudies-literature

Crystal structure of di-μ-chlorido-bis(chlorido-{N (1)-phenyl-N (4)-[(pyridin-2-yl-κN)methyl-idene]benzene-1,4-di-amine-κN (4)}mercury(II)).

Project description:The whole mol-ecule of the title complex, [Hg2Cl4(C18H15N3)2], is generated by inversion symmetry. It was synthesized from the pyridine-derived Schiff base N-phenyl-N'-[(pyridin-2-yl)methyl-idene]benzene-1,4-di-amine (PPMBD). The five-coordinated Hg(2+) ions have a distorted square-pyramidal environment defined by two N atoms, viz. the imine and the other pyridyl [Hg-N = 2.467 (6) and 2.310 (6) Å, respectively] belonging to the bidentate imino-pyridine ligand, and three Cl atoms [Hg-Cl = 2.407 (2), 2.447 (2) and 3.031 (2) Å]. The longest Hg-Cl bond is bridging about the inversion centre. In the ligand, the central ring and pyridine ring are oriented at a dihedral angle of 8.1 (4)°, while the planes of the pyridine ring and the terminal phenyl ring are oriented at a dihedral angle of 53.8 (4)°. In the crystal, mol-ecules are linked by N-H⋯Cl and C-H⋯Cl hydrogen bonds, forming sheets parallel to (001).

| S-EPMC4555402 | biostudies-literature

catena-Poly[[(benzil bis{[(pyridin-2-yl)methylidene]hydrazone}-??N,N',N'',N''')mercury(II)]-?-chlorido-[dichloridomercury(II)]-?-chlorido].

Project description:In the title coordination polymer, [Hg?Cl?(C??H??N?)](n), one Hg(II) ion is coordinated by four N atoms from the benzylbis((pyridin-2-yl)methyl-idenehydrazone) ligand and two Cl? ions in a very distorted cis-HgCl?N? octa-hedral geometry. The other Hg(II) ion is coordinated in a distorted tetra-hedral geometry by four Cl? ions. Bridging chloride ions link the Hg(II) ions into a chain propagating in [010]: the Hg-Cl bridging bonds are significantly longer than the terminal bonds. The dihedral angle between the central benzene rings of the ligand is 83.3?(2)°. The packing is consolidated by weak C-H?Cl hydrogen bonds and C-H?? inter-actions.

| S-EPMC3393175 | biostudies-literature

Isotypic one-dimensional coordination polymers: catena-poly[[di-chlorido-cadmium]-μ-5,6-bis-(pyridin-2-yl)pyrazine-2,3-di-carboxyl-ato-κ(2) N (5):N (6)] and catena-poly[[di-chlorido-mercury(II)]-μ-5,6-bis-(pyridin-2-yl)pyrazine-2,3-di-carboxyl-ato-κ(2) N (5):N (6)].

Project description:The isotypic title one-dimensional coordination polymers, [CdCl2(C18H14N4O4)] n , (I), and [HgCl2(C18H14N4O4)] n , (II), are, respectively, the cadmium(II) and mercury(II) complexes of the dimethyl ester of 5,6-bis-(pyridin-2-yl)pyrazine-2,3-di-carb-oxy-lic acid. In both compounds, the metal ions are located on a twofold rotation axis and a second such axis bis-ects the Car-Car bonds of the pyrazine ring. The metal ions are bridged by binding to the N atoms of the two pyridine rings and have an MN2Cl2 bisphenoidal coordination geometry. The metal-Npyrazine distances are much longer than the metal-Npyridine distances; the difference is 0.389 (2) Å for the Cd-N bonds but only 0.286 (5) Å for the Hg-N bond lengths. In the crystals of both compounds, the polymer chains are linked via pairs of C-H⋯Cl hydrogen bonds, forming corrugated slabs parallel to the ac plane.

| S-EPMC4971876 | biostudies-literature

catena-Poly[[bis-(pyrazine-2-carbox-amide)mercury(II)]-di-μ-chlorido].

Project description:In the polymeric title compound, [HgCl(2)(C(5)H(5)N(3)O)(2)](n), the Hg(II) atom (site symmetry ) adopts a distorted trans-HgN(2)Cl(4) octa-hedral coordination geometry. In the crystal, adjacent mercury ions are bridged by pairs of chloride ions, generating infinite [100] chains, and N-H⋯O and N-H⋯(N,N) hydrogen bonds help to consolidate the packing.

| S-EPMC2983533 | biostudies-literature

catena-Poly[[dichloridozinc(II)]-?-1,4-bis-(pyridin-2-ylmeth-oxy)benzene-?N:N'].

Project description:In the title compound, [ZnCl(2)(C(18)H(16)N(2)O(2))](n), the Zn(II) ion is tetra-hedrally coordinated by two Cl atoms and by two N atoms from different 1,4-bis-(pyridin-2-ylmeth-oxy)benzene ligands. The ligand shows a non-planar configuration, in which the dihedral angles between the two terminal pyridine rings and the linking benzene ring are 7.86?(12) and 70.74?(11)°. The flexible ligand coordinates to the Zn(II) ions, generating an infinite chain propagating along [001].

| S-EPMC3201249 | biostudies-literature

catena-Poly[cadmium-?-[1,3-bis-(imidazol-1-yl)propane]-di-?-chlorido].

Project description:The title complex, [CdCl(2)(C(9)H(12)N(4))](n), is characterized by the formation of a zigzag chain structure parallel to [001]. In the chain, the Cd(2+) cation is coordinated by four bridging Cl(-) ligands in equatorial positions and two N atoms from symmetry-related and likewise bridging 1,3-bis-(imidazol-1-yl)propane ligands in axial positions, forming a distorted CdCl(4)N(2) octa-hedron.

| S-EPMC3379108 | biostudies-literature

catena-Poly[[dichloridozinc(II)]-?-1,4-bis-(1H-imidazol-1-yl)benzene].

Project description:In the title one-dimensional coordination polymer, [ZnCl(2)(C(12)H(10)N(4))](n), the Zn(II) atom (site symmetry 2) is coordinated by two chloride ions and two 1,4-bis-(imidazol-1-yl)benzene ligands, generating a distorted tetra-hedral ZnCl(2)N(2) geometry for the metal ion. The bridging ligand, which is completed by crystallographic inversion symmetry, links the Zn(II) atoms into zigzag chains propagating in [101]. Within the ligand, the dihedral angle between the central benzene ring and terminal imidazole ring is 27.82?(13)°.

| S-EPMC3011715 | biostudies-literature

Poly[[?(2)-1,4-bis-(4,5-dihydro-1,3-oxazol-2-yl)benzene-?N:N']di-?(2)-chlorido-cadmium].

Project description:In the title coordination polymer, [CdCl(2)(C(12)H(12)N(2)O(2))](n), the Cd(II) ion, situated on an inversion center, is coordinated by four bridging Cl atoms and two N atoms from two 1,4-bis-(4,5-dihydro-1,3--oxazol-2-yl)benzene (L) ligands in a distorted octa-hedral geometry. Each L ligand also lies across an inversion center and bridges two Cd(II) ions, forming infinite two-dimensional recta-ngular layers running parallel to (010).

| S-EPMC3212158 | biostudies-literature

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