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Crystal structure of di-?-iodido-bis-{[1,3-bis-(2,6-diiso-propyl-phen-yl)imidazol-2-yl-idene]lithium}.

ABSTRACT: In the title binuclear complex, [Li2(C27H36N2)2I2], the unique Li(I) cation is coordinated by two iodide anions and one yl-idene C atom from a 1,3-bis-(2,6-diiso-propyl-phen-yl)imidazol-2-yl-idene ligand in a distorted trigonal-planar geometry. The two symmetry-related iodide anions bridge two Li(I) cations, forming an inversion dimer in which the Li2I2 plane is nearly perpendicular to the imidazol-2-yl-idene ring, with a dihedral angle of 85.5?(3)°. No hydrogen bonding is observed in the crystal.

SUBMITTER: Wan HD

PROVIDER: S-EPMC4459370 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Crystal structure of bis-[1,3-bis-(2,6-diiso-propyl-phen-yl)imidazol-2-yl-idene]silver(I) chloride tetrahydro-furan monosolvate.

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[Bis(2,6-diiso-propyl-phen-yl) phosphato-κ<i>O</i>]pentakis-(methanol-κ<i>O</i>)manganese bis-(2,6-diiso-propyl-phen-yl) phosphate methanol tris-olvate.

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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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Project description:In the mol-ecule of the title compound, C18H35N3P2, the methyl-pyridine-2,6-di-amine moiety is almost planar, with a maximum deviation of 0.0129 (9) Å for one of the amine N atoms. Whereas one of the P atoms is co-planar with this mean plane [deviation = 0.0158 (10) Å], the other P atom is considerably displaced out of the mean plane by 0.5882 (10) Å. In the crystal, no directional intermolecular interactions beyond van der Waals contacts could be identified.

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Project description:In the title compound, C19H21ClN2O2, the aromatic rings are approximately perpendicular to each other, subtending a dihedral angle of 87.7?(1)°. In the crystal, the 4-nitro-phenyl groups of pairs of neighbouring mol-ecules are parallel and oriented head-to-tail with a ring centroid-centroid distance of 3.9247?(12)?Å, leading to a ?-? inter-action between the pair. The faces of each phenyl ring of the 2,6-diiso-propyl-phenyl group inter-act with two different groups, viz. a chloro group of an adjacent mol-ecule on one side and the edge of the 4-nitro-phenyl ring of a second mol-ecule on the other side.

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