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

ABSTRACT: 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.

SUBMITTER: Azhdari Tehrani A

PROVIDER: S-EPMC2983533 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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

Azhdari Tehrani Alireza A Mir Mohammad Sadegh Bahareh B Khavasi Hamid Reza HR

Acta crystallographica. Section E, Structure reports online 20100206 Pt 3

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. ...[more]

PMID: 21580214

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

Project description:In the crystal structure of the title compound, [HgBr(2)(C(5)H(5)N(3)O)(2)](n), the Hg(II) cation is located on an inversion center and is coordinated by two N atoms from the pyrazine rings and four bridging Br(-) anions in a distorted octa-hedral geometry. The Br(-) anions bridge the Hg(II) cations with significantly different Hg-Br bond distances of 2.4775 (8) and 3.1122 (8) Å, forming polymeric chains running along the a axis. Inter-molecular N-H⋯O and N-H⋯N hydrogen bonds are effective in the stabilization of the crystal structure.

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catena-Poly[[chloridomercury(II)]-?-1,4-diaza-bicyclo-[2.2.2]octane-?N:N'-[chlorido-mercury(II)]-di-?-chlorido].

Project description:In the title coordination polymer, [Hg(2)Cl(4)(C(6)H(12)N(2))](n), each Hg(II) center within the chain is four-coordinated by one terminal Cl atom, two bridging ?(2)-Cl atoms, and one N-atom donor from a ?(2)-1,4-diaza-bicyclo-[2.2.2]octane (?(2)-daco) ligand in a distorted tetra-hedral geometry. The daco ligand acts as an end-to-end bridging ligand and bridges adjacent Hg(II) centers, forming a chain running along [001]. Weak C-H?Cl hydrogen-bonding inter-actions link the chains into a three-dimensional network. Comparison of the structural differences with previous findings suggests that the space between the two N donors, as well as the skeletal rigidity in N-heterocyclic linear ligands, may play an important role in the construction of such supra-molecular networks.

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catena-Poly[bis(dimethylazanium) [[chloridocopper(II)]-di-?-chlorido-[chloridocopper(II)]-di-?-azido-?N:N]].

Project description:The crystal structure of the title complex, {(C(2)H(8)N)[CuCl(2)(N(3))]}(n), exhibits inorganic chains consisting of Cu(II) cations as well azide and chloride anions. The chains, made up from Cu-Cl-Cu-N-Cu linkages, are aligned parallel to the c axis. This architecture is further stabilized by a number of N-H?Cl hydrogen bonds involving the protonated charge-compensating dimethyl-amine cations and chloride atoms.

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catena-Poly[(dichloridocadmium)-di-?-chlorido-[bis-(morpholinium-?O)cadmium]-di-?-chlorido].

Project description:In the title compound, [Cd(2)Cl(6)(C(4)H(10)NO)(2)](n), the coordination geometry of each Cd(II) ion is distorted octa-hedral, but with quite different coordination environments. One Cd(II) atom is coordinated by four Cl atoms and two O atoms from two morpholinium ligands, while the other is coordinated by six Cl atoms. Adjacent Cd(II) atoms are inter-connected alternately by paired chloride bridges, generating a chain parallel to the a axis. Inter-chain N-H?Cl inter-actions form a two-dimensional network.

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catena-Poly[[chlorido(methyl phenyl sulfide-?S)mercury(II)]-?-chlorido].

Project description:The title compound, [HgCl(2)(C(7)H(8)S)](n), was isolated from the reaction of MeSPh with HgCl(2). The Hg(II) atom has a distorted tetra-hedral geometry and is coordinated by one S atom and three Cl atoms. Two of the Cl atoms act as bridging ligands between the Hg atoms, forming a two-dimensional polymeric structure.

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catena-Poly[[bis[quinazolin-4(3H)-one-?N]cadmium(II)]-di-?-chlorido].

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| S-EPMC3009324 | biostudies-literature

catena-Poly[bis-(4-amino-pyridinium) [[diaqua-manganese(II)]-di-?-chlorido] dichloride].

Project description:Single crystals of the title organic-inorganic hybrid, {(C(5)H(7)N(2))(2)[MnCl(2)(H(2)O)(2)]Cl(2)}(n), were synthesized from an ethanol solution containing manganese(II) chloride tetra-hydrate and 4-amino-pyridine under acidic conditions. The asymmetric unit contains a disordered organic cation (occupancies in the ratio 0.72:0.28), a chloride anion and an MnCl(H(2)O) moiety with the Mn(II) atom located on an inversion center. The structure is built up of infinite chains of edge-sharing [MnCl(4)(H(2)O)(2)] octa-hedra developing parallel to the a axis which are separated by the 4-amino-pyridinium ions and discrete chloride ions. The organic cations occupy the empty space around each inorganic chain. Structural cohesion is organized through N-H?Cl and O-H?Cl hydrogen bonds, which build up a three-dimensional network.

| S-EPMC2977461 | biostudies-literature

catena-Poly[[bis-(pyridine-3-carb-oxy-lic acid-?N)mercury(II)]-di-?-chlorido].

Project description:In the title compound, [HgCl(2)(C(6)H(5)NO(2))(2)](n), the Hg(II) cation is located on an inversion center and is six-coordinated in a distorted octa-hedral geometry by two N atoms from two pyridine-3-carb-oxy-lic acid mol-ecules and four bridging Cl(-) anions. The bridging function of the Cl(-) anions leads to polymeric chains running along the a axis. One Hg-Cl bond is much longer than the other. In the crystal, O-H?O and weak C-H?Cl hydrogen bonds are observed.

| S-EPMC3343898 | biostudies-other

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

catena-Poly[[trans-bis-(1,3-benzo-thia-zole-?N)manganese(II)]-di-?-chlorido].

Project description:In the title coordination polymer, [MnCl2(C7H5NS)2] n , the Mn(II) ion is located on the inter-section of a twofold rotation axis and a mirror plane and adopts an octa-hedral coordination geometry defined by two mutually trans N atoms from benzo-thia-zole ligands which occupy the axial positions, and four Cl atoms which form the equatorial sites. The Mn(II) ions are connected by two bridging Cl atoms, forming chains parallel to the c axis. The crystal packing can be descibed as alternating layers parallel to (001) featuring ?-? stacking inter-actions with a centroid-centroid distance of 3.6029?(15)?Å.

| S-EPMC4120608 | biostudies-literature

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