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Poly[[?-1,4-bis-(imidazol-1-ylmeth-yl)benzene]bis-(?(4)-cyclo-hexane-1,4-dicarboxyl-ato)dinickel(II)].

ABSTRACT: The structure of the polymeric title compound, [Ni(2)(C(8)H(10)O(4))(2)(C(14)H(14)N(4))](n), features a five-coordinate Ni(II) centre defined by four carboxyl-ate O atoms from two different cyclo-hexane-1,4-dicarboxyl-ate (chdc) ligands and an N atom from one end of a 1,4-bis-(imidazol-1-ylmeth-yl)benzene (1,4-bix) mol-ecule. The NO(4) coordination geometry is distorted square-pyramidal with the N atom in the apical position. Each end of the chdc ligand links pairs of Ni(II) atoms into a paddle-wheel assembly, i.e. Ni(2)(O(2)CR')(4). These are connected into rows owing to the bridging nature of the chdc ligands, and the rows are connected into a two-dimensional grid via the 1,4-bix ligands. The 1,4-bix ligand, which is disposed about a centre of inversion, is disorderd. Two positions of equal occupancy were discerned for the -H(2)C(C(6)H(4))CH(2)- residue.

SUBMITTER: Li BB

PROVIDER: S-EPMC2977293 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature

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Poly[[μ-1,4-bis-(imidazol-1-ylmeth-yl)benzene]bis-(μ(4)-cyclo-hexane-1,4-dicarboxyl-ato)dinickel(II)].

Li Bing-Bing BB Fang Gai-Xia GX Ji Xiao-Na XN Xiao Bo B Tiekink Edward R T ER

Acta crystallographica. Section E, Structure reports online 20090731 Pt 8

The structure of the polymeric title compound, [Ni(2)(C(8)H(10)O(4))(2)(C(14)H(14)N(4))](n), features a five-coordinate Ni(II) centre defined by four carboxyl-ate O atoms from two different cyclo-hexane-1,4-dicarboxyl-ate (chdc) ligands and an N atom from one end of a 1,4-bis-(imidazol-1-ylmeth-yl)benzene (1,4-bix) mol-ecule. The NO(4) coordination geometry is distorted square-pyramidal with the N atom in the apical position. Each end of the chdc ligand links pairs of Ni(II) atoms into a paddle- ...[more]

PMID: 21583309

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Poly[[?(2)-1,4-bis-(imidazol-1-ylmeth-yl)benzene]bis-(?(4)-cyclo-hexane-1,4-dicarboxyl-ato)dicobalt(II)].

Project description:In the title compound, [Co(2)(C(8)H(10)O(4))(2)(C(14)H(14)N(4))](n), the two Co(II) atoms are both five-coordinated by four carboxyl-ate O atoms, derived from two different cyclo-hexane-1,4-dicarboxyl-ate (chdc) ligands, and an N atom, derived from one end of a 1,4-bis-(imidazol-1-ylmeth-yl)benzene mol-ecule (1,4-bix), in a distorted square-pyramidal environment. Each end of the chdc ligand links pairs of Co(II) atoms into a paddle-wheel assembly, i.e. Co(2)(O(2)CR')(4); these are connected into rows because of the bridging nature of the chdc ligands, and the rows are further connected into a two-dimensional layer through the 1,4-bix ligands. The 1,4-bix ligand, which is disposed about a centre of inversion, is disorderd. Two positions were discerned for the -CH(2)(C(6)H(4))CH(2)- residue, with the major component having a site-occupancy factor of 0.512?(9).

| S-EPMC2970306 | biostudies-literature

Poly[[μ(2)-1,2-bis-(imidazol-1-ylmeth-yl)benzene](μ(2)-cyclo-hexane-1,4-dicarboxyl-ato)cobalt(II)].

Project description:In the the title compound, [Co(C(8)H(10)O(4))(C(14)H(14)N(4))](n), the Co(II) atom is four-coordinated by two N atoms from two different 1,2-bis-(imidazol-1-ylmeth-yl)benzene ligands and two carboxyl-ate O atoms from two different cyclo-hexane-1,4-dicarboxyl-ate anions in a tetra-hedral coordination geometry. The resulting structure is a two-dimensional polymer with layers in the (100) plane.

| S-EPMC2983598 | biostudies-literature

catena-Poly[[bis-(4-carboxy-cyclo-hexane-carboxyl-ato-?O,O)cadmium(II)]-?-1,4-bis-(imidazol-1-ylmeth-yl)benzene-?N:N].

Project description:In the title coordination polymer, [Cd(C(8)H(11)O(4))(2)(C(14)H(14)N(4))](n), the Cd atom (site symmetry 2) is six-coordin-ated by two O,O'-bidentate 4-carboxy-cyclo-hexa-necarboxyl-ate (Hchdc) ligands and two N atoms from two different 1,4-bis-(imidazol-1-ylmeth-yl)benzene (1,4-bix) mol-ecules in a very distorted cis-CdN(2)O(4) octa-hedral environment. The 1,4-bix mol-ecules act as bridging ligands that bind two Cd(II) atoms, thus forming an infinite chain propagating in [100], which is decorated by the Hchdc anions. The structure is completed by O-H?O hydrogen bonds, which link the chains together.

| S-EPMC2969484 | biostudies-literature

Poly[di-?-cis-cyclo-hexane-1,4-dicarboxyl-ato-?-trans-cyclo-hexane-1,4-dicarboxyl-ato-bis-[dipyrido[3,2-a:2',3'-c]phenazine]trimanganese(II)].

Project description:In the title compound, [Mn(3)(C(8)H(10)O(4))(3)(C(18)H(10)N(4))(2)], one Mn atom and one cyclohexane-1,4-dicarboxylate (chdc) ligand are located on centres of inversion. One of the two independent Mn atoms is seven-coordinate, binding to five carboxyl-ate O atoms from different chdc ligands and two phenanthrene N atoms from a dipyrido[3,2-a:2',3'-c]phenazine (L) ligand, while the second Mn atom is six-coordinate, binding to six carboxyl-ate O atoms from different chdc ligands. The cis-chdc ligands bridge the trinuclear Mn(II) clusters, forming chains, which are further linked into a three-dimensional network.

| S-EPMC2961629 | biostudies-literature

Poly[[dodeca-aqua-(?(4)-benzene-1,4-dicarboxyl-ato)(?(2)-4,4'-bipyridine-?(2)N:N')dicerium(III)] bis-(benzene-1,4-dicarboxyl-ate)].

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| S-EPMC3344367 | biostudies-literature

Bis(μ-cyclo-hexane-1,4-dicarboxyl-ato)bis-{aqua-[1-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)naphthalen-2-ol]cadmium} monohydrate.

Project description:The asymmetric unit of the title compound, [Cd(2)(C(8)H(10)O(4))(2)(C(23)H(14)N(4)O)(2)(H(2)O)(2)]·H(2)O, consists of one half of the dimeric complex, which lies about an inversion centre, and a half-occupancy solvent water mol-ecule on a general position. Each Cd(II) cation is six-coordinated by the two N atoms from one 1-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)naphthalen-2-ol (L) ligand and three O atoms from two different 1,4-chdc(2-) ligands (1,4-H(2)chdc = cyclo-hexane-1,4-dicarb-oxy-lic acid), two coordinating in a bidentate fashion and the other in a monodentate fashion. The distorted octa-hedral coordination sphere is completed by a coordinated water mol-ecule. The Cd(II) atoms are each bridged by two 1,4-chdc(2-) ligands, forming an inversion dimer with the L ligands located on the outside of the dimeric unit. An intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, O-H⋯O and N-H⋯O hydrogen-bonding inter-actions stabilize the packing.

| S-EPMC3051929 | biostudies-literature

Poly[tris-(2,5-dimethyl-benzene-1,4--dicarboxyl-ato)bis-(pyridine)trizinc(II)].

Project description:The asymmetric unit of the title polymeric compound, [Zn(3)(C(10)H(8)O(4))(3)(C(5)H(5)N)(2)](n) or [Zn(3)(dmbdc)(3)(py)(2)](n) (dmbdc = 2,5-dimethyl-benzene-dicarboxyl-ate; py = pyridine) contains two Zn(II) ions, one of which is located on an inversion centre, one and a half 2,5-dimethyl-benzene-dicarboxyl-ate ligands and one pyridine ligand. Each ZnO(6) octa-hedron is sandwiched between two ZnO(4)N square-pyramids, forming a trinuclear zinc secondary building unit (SBU); each SBU is further linked by six 2,5-dimethyl-benzene-dicarboxyl-ate ligands with six adjacent trinuclear zinc SBU's, forming a two-dimensional layer structure with a (3,6) net. One of the three zinc ions is octa-hedrally coordinated and the other two are square-pyramidally coordinated. The coordination modes for 2,5-dimethyl-benzene-dicarboxyl-ates are bis-(bidentate) or bidentate-tridentate.

| S-EPMC2983653 | biostudies-literature

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Project description:The title compound, [Cu(2)(C(7)H(3)NO(4))(2)(C(12)H(12)N(6))(H(2)O)(2)]·H(2)O, displays a discrete dinuclear structure, in which the central Cu(II) atom is five-coordinated in a distorted square-based pyramidal coordination geometry and the flexible ligand 1,4-bis-(1,2,4-triazol-1-ylmeth-yl)benzene adopts a bis-monodentate bridging mode linking the Cu(II) atoms. It is further assembled by O-H?O hydrogen-bond inter-actions involving both the coordinated and uncoordinated water molecules. The latter exhibits half-occupancy.

| S-EPMC3151849 | biostudies-other

Poly[bis-[?-1,4-bis-(imidazol-1-ylmeth-yl)benzene]dichloridocadmium(II)].

Project description:The title compound, [CdCl(2)(C(14)H(14)N(4))(2)](n), has a slightly distorted octa-hedral coordination geometry, formed by four N atoms from 1,4-bis-(imidazol-1-ylmeth-yl)benzene ligands and two Cl atoms, giving a two-dimensional network. The Cd atom lies on a centre of inversion.

| S-EPMC2961887 | biostudies-other

Poly[bis-[?-1,4-bis-(imidazol-1-ylmeth-yl)benzene]-dichloridomanganese(II)].

Project description:In the crystal structure of the title compound, [MnCl(2)(C(14)H(14)N(4))(2)](n), the Mn(II) atom, lying on an inversion center, is coordinated by four N atoms from four 1,4-bis-(imidazol-1-ylmeth-yl)benzene (bimb) ligands and two Cl(-) anions in a distorted octa-hedral geometry. The bimb ligands bridge the Mn(II) atoms, forming a two-dimensional polymeric complex, which is composed of a 52-membered [Mn(4)(bimb)(4)] ring with distances of 7.7812?(2) and 27.4731?(9)?Å between opposite metal atoms. Weak C-H?? inter-actions are present in the crystal structure.

| S-EPMC3212256 | biostudies-other

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