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Catena-Poly[lead(II)-[?-2,4-diamino-6-(piperidin-1-yl)pyrimidine N-oxide-?O:O]di-?-iodido].

ABSTRACT: The N-oxide O atom of the minoxidil unit in the 1/1 adduct with lead(II) iodide, [PbI(2)(C(9)H(15)N(5)O)](n), bridges two Pb(II) atoms, as do each of the I atoms. The bridging inter-actions give rise to a linear chain motif that propagates along the a axis of the ortho-rhom-bic unit cell. The coordination sphere around the six-coordinate Pb(II) atom is a distorted ?-monocapped octa-hedron in which the stereochemically active lone pair caps one of the faces defined by the O and I atoms forming the longer Pb-O or Pb-I bonds. The Pb(II) atom lies on a mirror plane; the mirror plane is perpendicular to the pyrimidine ring and it bis-ects the piperidine ring. The aromatic ring is disordered about the mirror plane with respect to the 1-nitro-gen and 5-carbon atoms.

SUBMITTER: Ranjbar M

PROVIDER: S-EPMC2969437 | biostudies-other | 2009

REPOSITORIES: biostudies-other

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catena-Poly[lead(II)-[μ-2,4-diamino-6-(piperidin-1-yl)pyrimidine N-oxide-κO:O]di-μ-iodido].

Ranjbar Maryam M Najafi S Heidar Mahmoudi SH Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20090606 Pt 7

The N-oxide O atom of the minoxidil unit in the 1/1 adduct with lead(II) iodide, [PbI(2)(C(9)H(15)N(5)O)](n), bridges two Pb(II) atoms, as do each of the I atoms. The bridging inter-actions give rise to a linear chain motif that propagates along the a axis of the ortho-rhom-bic unit cell. The coordination sphere around the six-coordinate Pb(II) atom is a distorted ψ-monocapped octa-hedron in which the stereochemically active lone pair caps one of the faces defined by the O and I atoms forming th ...[more]

PMID: 21582686

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catena-Poly[1,1'-dimethyl-4,4'-(ethane-1,2-di-yl)dipyridinium [lead(II)-tri-μ-iodido-lead(II)-tri-μ-iodido]].

Project description:The title compound, {(C(14)H(18)N(2))[Pb(2)I(6)]}(n), consists of discrete 1,1'-dimethyl-4,4'-(ethane-1,2-di-yl)dipyridinium cations and one-dimensional [Pb(2)I(6)](n) anions. The organic cation has an inversion center at the mid-point of the ethane C-C bond. In the anion, the Pb(II) atom is coordinated by six I atoms in a distorted octa-hedral geometry. The I atoms bridge the Pb(II) atoms into a polymeric chain running along [001]. These inorganic chains are separated by the isolated organic cations.

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Project description:The title compound, {(C(13)H(22)N(4))[Ag(2)I(4)]}(n), was prepared by reaction of 1,3-bis-(N-ethyl-imidazolium-1-yl)propane iodide with silver (I) oxide. In the 3,3'-diethyl-1,1'-(propane-1,3-di-yl)di(1H-imidazol-3-ium) cation, the dihedral angle between the imidazole rings is 49.3?(1)°. In the [Ag(2)I(4)](2-) anion, each Ag(I) atom is bonded to three iodide anions, the two Ag(I) atoms and two of the iodides forming Ag(2)I(2) square-planar (r.m.s. deviation = 0.01?Å) units·The remaining two iodides, which are placed on opposite sides of the square, together with their centrosymmetric counterparts, link the square-planar Ag(2)I(2) units into {[Ag(2)I(4)](2-)}(n) polymeric chains via Ag-I bonds.

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catena-Poly[[(5,5'-dimethyl-2,2'-bi-pyridine-?N,N')cadmium(II)]-di-?-iodido].

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Syntheses, crystal structures and thermal properties of catena-poly[cadmium(II)-di-μ-bromido-μ-pyridazine-κ2N1:N2] and catena-poly[cadmium(II)-di-μ-iodido-μ-pyridazine-κ2N1:N2]

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catena-Poly[[(liriodenine-?N,O)lead(II)]-di-?-chlorido].

Project description:The title compound, [PbCl(2)(C(17)H(9)NO(3))](n), was synthesized by the hydro-thermal reaction of PbCl(2) and liriodenine. The lead(II) atom has a distorted octa-hedral environment made up of the O and N atoms of the liriodenine ligand [Pb-O 2.666?(4)?Å, Pb-N 2.587?(5)?Å, O-Pb-N 61.78?(14)°] and four bridging chloro ligands, which link the complex mol-ecules into infinite chains along the a axis. Both crystallographically independent chloro-bridges are asymmetric, so that the Pb atom participates in two short [2.6872?(18) and 2.7952?(18)?Å] and two noticeably longer Pb-Cl bonds [2.9626?(18) and 3.031?(2)?Å].

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catena-Poly[copper(I)-bis-[μ-3-(1H-imidazol-2-yl)pyridine]-copper(I)-di-μ-iodido].

Project description:The title polymeric compound, [Cu(2)I(2)(C(8)H(7)N(3))(2)](n) [C(8)H(7)N(3) = 3-(1H-imidazol-2-yl)pyridine (HIPy), where HIPy comes from the in situ deca-rboxylation of 2-(pyridin-3-yl)-1H-imidazole-4,5-dicarb-oxy-lic acid (H(3)PyIDC)], was obtained under solvo-thermal conditions. Each Cu(I) cation is in a distorted tetra-hedral coordination environment defined by two iodide anions and two nitro-gen atoms from two individual HIPy ligands. Two Cu(I) atoms are connected by two HIPy ligands to form a dimer and these dimers are further bridged through the iodide atoms, leading to a chain structure extending parallel to [100]. Moreover, inter-molecular N-H⋯I hydrogen bonds and weak π-π stacking inter-actions [centroid⋯centroid distances of 3.809 (4) Å, an inter-planar separation of 3.345 (3) Å and a ring slippage of 1.822 Å] between pyridyl rings link the chains into a two-dimensional supra-molecular network in the ac plane.

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catena-Poly[[(2,9-dimethyl-1,10-phenanthroline-?(2)N,N')lead(II)]-di-?-bromido].

Project description:In the title compound, [PbBr(2)(C(14)H(12)N(2))](n), the Pb(II) atom lies on a twofold rotation axis. The N-heterocycle-chelated Pb(II) atom exists in a distorted octa-hedral geometry owing to two long Pb?Br inter-actions [2.9562?(5) and 3.2594?(5)?Å]. These result in a zigzag chain running along the c axis. The lone pair is stereochemically inactive.

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catena-Poly[[(1,10-phenanthroline-?N,N')copper(I)]-?(2)-iodido].

Project description:The solvothermal reaction of copper(I) iodide and 1,10-phenanthroline (phen) in ethanol yielded the title polymeric compound, [CuI(C(12)H(8)N(2))](n). The asymmmetric unit comprises one Cu(+) cation, one I(-) anion and one phen ligand. Each Cu(+) cation is in a distorted tetrahedral coordination by two iodide anions and two N atoms from a bidentate chelating phen ligand. The Cu(+) cations are bridged through the iodide anions, leading to a zigzag chain structure extending parallel to [100]. There are ?-? inter-actions among adjacent phen ligands of one chain [centroid-centroid distance = 3.693?(3)?Å].

| S-EPMC3009332 | biostudies-literature

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