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Di-μ-iodido-bis-[(dimethyl 2,2'-biquinoline-4,4'-dicarboxyl-ate-κ(2)N,N')copper(I)].

ABSTRACT: In the centrosymmetric dinuclear title complex, [Cu(2)I(2)(C(22)H(16)N(2)O(4))(2)], the Cu(I) atom is coordinated in a distorted tetra-hedral geometry by an N,N'-bidentate dimethyl 2,2'-biquinoline-4,4'-dicarboxyl-ate ligand and two symmetry-related I atoms, which act as bridges to a symmetry-related Cu(I) atom. The distance between the Cu(I) atoms within the dinuclear unit is 2.6723 (11) Å.

SUBMITTER: Starosta R

PROVIDER: S-EPMC3379095 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Dimethyl 2,2'-di-nitro-biphenyl-4,4'-di-carboxyl-ate.

Project description:The title compound, C16H12N2O8, exhibits two near-planar aromatic ester groups with ar-yl-ester dihedral angles of 2.1 (2) and 4.2 (3)°. The dihedral angle between the aromatic rings is 58.0 (1)°. The two nitro groups are tilted slightly from the plane of the aromatic rings, making dihedral angles of 14.1 (1) and 8.2 (2)°. In the crystal, mol-ecules are connected by weak C-H⋯O inter-actions, forming a three-dimensional network.

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Dimethyl biphenyl-4,4'-dicarboxyl-ate.

Project description:The asymmetric unit of the title compound, C(16)H(14)O(4), consists of one half-mol-ecule of an essentially planar biphenyl-dicarboxylic acid ester, with the complete molecule generated by an inversion centre. The maximum deviation from a least-squares plane through all non-H atoms occurs for the peripheric methyl groups and amounts to 0.124?(2)?Å. The solid represents a typical mol-ecular crystal without classical hydrogen bonds. The shortest inter-molecular contacts do not differ significantly from the sum of the van der Waals radii of the atoms involved.

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Dibutyl 2,2'-bipyridine-4,4'-dicarboxyl-ate.

Project description:In the title compound, C(20)H(24)N(2)O(4), the mol-ecule lies on a centre of symmetry and is approximately planar (r.m.s. deviation= 0.013?Å for 26 non-H atoms). The carboxyl-ate group is inclined slightly to the neighbouring pyridine ring, forming a dihedral angle of 4.37?(2)°. The mol-ecules form stacks with an inter-planar separation of 3.547?(1)?Å.

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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.

| S-EPMC3151972 | biostudies-literature

Di-μ-bromido-bis-[bromido(4,4'-dimethyl-2,2'-bipyridine-κN,N')mercury(II)].

Project description:The asymmetric unit of the title compound, [Hg(2)Br(4)(C(12)H(12)N(2))(2)], contains one half-mol-ecule. The Hg(II) atom is five-coordinated in a trigonal-bipyramidal configuration by two N atoms from the chelating 4,4'-dimethyl-2,2'-bipyridine ligand, two bridging Br and one terminal Br atom, leading to a centrosymmetric dimeric mol-ecule. There is a π-π contact between the pyridine rings [centroid-to-centroid distance = 3.756 (5) Å].

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Dimethyl 6,6'-dicyano-2,2'-bipyridine-3,3'-dicarboxyl-ate.

Project description:In the title compound, C(16)H(10)N(4)O(4), the two pyridine rings are twisted by 44.41?(2)° and the ester groups form dihedral angles of 48.77?(4) and 45.75?(2)° with the corresponding pyridine rings. The crystal structure is stabilized by inter-molecular C-H?O hydrogen bonds and ?-? stacking inter-actions between the pyridine rings [centroid-to-centroid distance 3.797?(2)?Å].

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(R)-Di-tert-butyl 1,1'-binaphthyl-2,2'-dicarboxyl-ate.

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Dimethyl 3,3'-di-meth-oxy-biphenyl-4,4'-di-carboxyl-ate.

Project description:In the title compound, C18H18O6, the biphenyl moiety is twisted with a dihedral angle of 29.11 (10)°. The carbometh-oxy groups form C-C-C-O torsion angles of -18.3 (3) and -27.7 (3)° with the attached rings, as a result of steric hindrances from the nearby meth-oxy groups. In the absence of stacking inter-actions and with no H⋯O contacts shorter than 2.7 Å, the packing is dominated by weaker van der Waals inter-actions.

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Dimethyl 2-amino-biphenyl-4,4'-di-carboxyl-ate.

Project description:The title compound, C16H15NO4, exhibits two near-planar aromatic ester groups with a maximum aryl-ester torsion angle of 1.9?(2)°. The dihedral angle between the benzene rings is 44.7?(1)°. In the crystal, N-H?O hydrogen bonding is observed along with C-H?O contacts, forming chanins along [101]. No ?-? inter-actions were noted between the benzene rings.

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Dimethyl 2-nitro-biphenyl-4,4'-di-carboxyl-ate.

Project description:The title compound, C16H13NO6, exhibits a biphenyl unit with a dihedral angle between the two aryl rings of 56.01 (5)°. The two ester groups vary slightly from planarity, with ar-yl-ester dihedral angles of 4.57 (5) and 16.73 (5)°. The nitro group is turned from the aromatic unit with an ar-yl-nitro dihedral angle of 48.66 (4)°. In the crystal, mol-ecules are connected by weak C-H⋯O inter-actions, forming a three-dimensional network.

| S-EPMC3998483 | biostudies-literature

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