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Catena-Poly[[diiodidocadmium]-?-[4,4'-(2,3,5,6-tetra-methyl-1,4-phenyl-ene)bis-(methyl-ene)]bis-(3,5-dimethyl-1H-pyrazole)-?N:N].

ABSTRACT: The heterocylic ligand of the polymeric title compound, [CdI(2)(C(22)H(30)N(4))], links two adjacent CdI(2) units, forming a chain running parallel to [[Formula: see text]01]. The Cd(II) atom is located on a twofold rotation axis and shows a distorted tetra-hedral CdI(2)N(2) coordination. The mid-point of the benzene ring of the ligand lies on a center of inversion. There are no classical hydrogen-bonding inter-actions present.

SUBMITTER: Zhou Y

PROVIDER: S-EPMC3212128 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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catena-Poly[[diiodidocadmium]-μ-[4,4'-(2,3,5,6-tetra-methyl-1,4-phenyl-ene)bis-(methyl-ene)]bis-(3,5-dimethyl-1H-pyrazole)-κN:N].

Zhou Yuanyuan Y Wang Zhaoyang Z Yang Guang G Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20110706 Pt 8

The heterocylic ligand of the polymeric title compound, [CdI(2)(C(22)H(30)N(4))], links two adjacent CdI(2) units, forming a chain running parallel to [[Formula: see text]01]. The Cd(II) atom is located on a twofold rotation axis and shows a distorted tetra-hedral CdI(2)N(2) coordination. The mid-point of the benzene ring of the ligand lies on a center of inversion. There are no classical hydrogen-bonding inter-actions present. ...[more]

PMID: 22090830

Similar Datasets

Crystal structures and Hirshfeld surface analyses of 4,4'-{[1,3-phenyl-enebis(methyl-ene)]bis-(-oxy)}bis-(3-meth-oxy-benzaldehyde) and 4,4'-{[(1,4-phenyl-ene-bis(methyl-ene)]bis-(-oxy)}bis-(3-meth-oxy-benzalde-hyde).

Project description:The title compounds, C24H22O6 (I) and C24H22O6 (II), each crystallize with half a mol-ecule in the asymmetric unit. The whole mol-ecule of compound (I) is generated by twofold rotation symmetry, the twofold axis bis-ecting the central benzene ring. The whole mol-ecule of compound (II) is generated by inversion symmetry, the central benzene ring being located on an inversion center. In (I), the outer benzene rings are inclined to each other by 59.96 (10)° and by 36.74 (9)° to the central benzene ring. The corresponding dihedral angles in (II) are 0.0 and 89.87 (12)°. In the crystal of (I), mol-ecules are linked by C-H⋯O hydrogen bonds and C-H⋯π inter-actions, forming ribbons propagating along the [10] direction. In the crystal of (II), mol-ecules are linked by C-H⋯O hydrogen bonds, forming a supra-molecular framework. The Hirshfeld surface analyses indicate that for both compounds the H⋯H contacts are the most significant, followed by O⋯H/H⋯O and C⋯H/H⋯C contacts.

| S-EPMC6658956 | biostudies-literature

Poly[diaqua-[μ6-4,4'-(1,4-phenyl-ene)bis-(2,6-dimethyl-pyridine-3,5-dicarboxyl-ato)]dilead(II)].

Project description:The asymmetric unit of the title Pb-based coordination polymer, [Pb2(C24H16N2O8)(H2O)2] n , consists of one Pb(II) cation, half of a 4,4'-(1,4-phenyl-ene)bis-(2,6-dimethyl-pyridine-3,5-di-carb-oxyl-ate (L (4-)) ligand and one coordinating water mol-ecule. The centers of the benzene ring of the ligand and the four-membered Pb/O/Pb/O ring are located on centers of inversion. The Pb(II) ion is coordinated in form of a distorted polyhedron by seven O atoms from four separate L (4-) ligands and by one water O atom. The PbO7 polyhedra share O atoms, forming infinite zigzag [PbO4(H2O)] n chains along [100] that are bridged by L (4-) ligands, forming a two-dimensional coordination network parallel to (001). O-H⋯O hydrogen bonds involving the water mol-ecule are observed.

| S-EPMC3629504 | biostudies-literature

4,4'-({[(Pyridine-2,6-di-yl)bis-(methyl-ene)]bis-(-oxy)}bis-(methyl-ene))dibenzo-nitrile.

Project description:The complete title molecule, C23H19N3O2, is generated by a twofold axis passing through the central ring. The two oxymethyl-benzo-nitrile arms are attached at the meta positions of the central pyridine ring. The dihedral angle between the pyridine ring and benzene ring of both arms is 84.55 (6)° while the benzene rings make a dihedral angle of 46.07 (7)°. In the crystal, weak C-H⋯π inter-actions link the molecules sheets parallel to the ac plane.

| S-EPMC3998298 | biostudies-literature

2,2'-[2,3,5,6-Tetra-methyl-p-phenyl-ene-bis(methyl-enethio)]bis-(pyridine N-oxide).

Project description:Mol-ecules of the title compound, C(22)H(24)N(2)O(2)S(2), lie across centres of inversion. The two thio-pyridine N-oxide groups adopt a stepped trans configuration with respect to the benzene ring, by virtue of the symmetry. The oxopyridinium ring forms a dihedral angle of 79.9 (2)° with the benzene ring. The crystal structure is stabilized by a strong π-π inter-action between the pyridinium rings of adjacent mol-ecules [ring centroid-centroid distance = 3.464 (3) Å].

| S-EPMC2960153 | biostudies-literature

catena-Poly[(diaqua-cadmium)-?-4,4'-[sulfonyl-bis-(1,4-phenyl-ene-oxy)]-di-acet-ato-?O,O':O'',O'''].

Project description:In the title coordination polymer, [Cd(C(16)H(12)O(8)S)(H(2)O)(2)](n), the Cd(II) ion is situated on a crystallographic twofold rotation axis, being coordinated by four O atoms from two bidentate 4,4'-[sulfonyl-bis-(1,4-phenyl-ene-oxy)]diacetate (L) ligands and two water mol-ecules in a highly distorted CdO(6) octa-hedral geometry. Each complete ligand L, which is also generated by twofold symmetry with the S atom lying on the rotation axis, bridges two Cd(II) atoms to form a polymeric zigzag chain propagating in the [10-1] direction. O-H?O hydrogen bonds between the coordinated water mol-ecules and carboxyl-ate O atoms are involved in the packing.

| S-EPMC3297229 | biostudies-literature

catena-Poly[[[tetra-aqua-magnesium]-trans-μ-[(piperazine-1,4-diium-1,4-di-yl)bis-(methyl-ene)]di-phospho-nato] hemihydrate].

Project description:The structure of the title polymer, }[Mg(C6H14N2O6P2)(H2O)4]·0.5H2O} n , is based on centrosymmetric MgO6 octahedra, which are linked by [(piperazine-1,4-diium-1,4-di-yl)bis-(methyl-ene)]di-phospho-nate ligands, forming chains parallel to [1-1-1]. These chains are connected via hydrogen bonds primarily formed between the phospho-nate groups and water mol-ecules. The latter constitute four of the corners of the MgO6 polyhedra and bind to the O atoms of the phospho-nate groups of neighbouring chains. The lattice water molecule is disordered around an inversion centre, exhibiting an occupancy of 0.25.

| S-EPMC3793689 | biostudies-literature

1,1'-[2,3,5,6-Tetra-methyl-p-phenyl-ene-bis(methyl-eneoxy)]di-1H-benzotriazole.

Project description:The complete molecule of the title compound, C(24)H(24)N(6)O(2), is generated by a crystallographic inversion centre. The benzotriazole rings form dihedral angles of 2.10 (7)° with the central aromatic ring. The crystal packing is consolidated by π-π inter-actions, with centroid-centroid distances of 3.6234 (10) Å, together with weak C-H⋯π inter-actions.

| S-EPMC2969066 | biostudies-literature

4,4'-[Piperazine-1,4-diylbis(propyl-ene-nitrilo-methyl-idyne)]diphenol.

Project description:In the title mol-ecule, C(24)H(32)N(4)O(2), the piperazine ring adopts a chair conformation and the dihedral angle between the two benzene rings is 35.4?(1)°. In the crystal structure, inter-molecular O-H?N hydrogen bonds link mol-ecules into chains along [001].

| S-EPMC2972058 | biostudies-literature

1,1'-{[1,4-Phenyl-enebis(methyl-ene)]bis-(-oxy)bis-(4,1-phenyl-ene)}diethanone.

Project description:The centroid of the central aromatic ring of the title mol-ecule, C(24)H(22)O(4), is located on an inversion center. The dihedral angle between the central and terminal benzene rings is 75.00 (7)°. In the crystal, mol-ecules are linked through C-H⋯O hydrogen bonds into chains along [121]. The chains are connected into layers via C-H⋯π inter-actions.

| S-EPMC3238835 | biostudies-literature

1,1'-{[1,4-Phenyl-enebis(methyl-ene)]bis-(-oxy)bis-(3,1-phenyl-ene)}diethanone.

Project description:In the title compound, C(24)H(22)O(4), the centroid of the central benzene ring lies on a special position of 2/m site symmetry, while the terminal aromatic rings are located on a mirror plane. The central and terminal benzene rings are perpendic-ular to each other. In the crystal, the mol-ecules are connected via C-H⋯O hydrogen bonds into a three-dimensional polymeric structure. The network is further consolidated by a C-H⋯π inter-action.

| S-EPMC3238815 | biostudies-literature

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