Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Structure of tetra-kis-(?-deca-noato-?2 O:O')bis-[(4-methyl-pyridine-?N)copper(II)], a dimeric copper(II) complex.

ABSTRACT: The 4-methyl-pyridine (4-Mepy) based dimeric copper(II) carboxyl-ate complex [Cu2(C10H19O2)4(C6H7N)2] or [Cu2(?-O2CC9H19)4(4-Mepy)2] crystallizes with triclinic (P ) symmetry. The two CuII ions exhibit a distorted square-pyramidal environment and are connected into a centrosymmetric paddle-wheel dinuclear cluster [Cu?Cu = 2.6472?(8)?Å] via four bridging carboxyl-ate ligands arranged in the syn-syn coordination mode. The apical positions around the paddle-wheel copper centers are occupied by the N atoms of the 4-methyl-pyridine ligands. The structure exhibits disorder of the terminal alkyl carbon atoms in the deca-noate chains.

SUBMITTER: Gogoi M

PROVIDER: S-EPMC7643230 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

Structure of tetra-kis-(μ-deca-noato-κ2 O:O')bis-[(4-methyl-pyridine-κN)copper(II)], a dimeric copper(II) complex.

Gogoi Monsumi M Das Birinchi Kumar BK

Acta crystallographica. Section E, Crystallographic communications 20201030 Pt 11

The 4-methyl-pyridine (4-Mepy) based dimeric copper(II) carboxyl-ate complex [Cu2(C10H19O2)4(C6H7N)2] or [Cu2(μ-O2CC9H19)4(4-Mepy)2] crystallizes with triclinic (P ) symmetry. The two CuII ions exhibit a distorted square-pyramidal environment and are connected into a centrosymmetric paddle-wheel dinuclear cluster [Cu⋯Cu ...[more]

PMID: 33209352

Similar Datasets

Tetra-kis(pyridine-κN)bis-(tetrafluorido-borato-κF)copper(II).

Project description:In the title complex, [Cu(BF4)2(C5H5N)2], the Cu(II) ion is in an octa-hedral coordination environment and is surrounded by four pyridine and two tetra-fluoridoborate mol-ecules. The four pyridine mol-ecules are coordinated to the copper ion through their N atoms in the equatorial plane and display a right-handed screw arrangement around the Cu(II) ion. The remaining two trans positions in the octa-hedron are occupied by the BF4 (-) anions, each coordinating weakly through an F atom. The crystal packing shows a two-dimensional sheet structure parallel to the ab plane that is formed by C-H⋯F hydrogen-bonding inter-actions.

| S-EPMC3793688 | biostudies-literature

Bis(μ-hexa-deca-noato-κO:O)bis-[(2,2'-bipyridine-κN,N')(hexa-deca-noato-κO)copper(II)] methanol disolvate.

Project description:The asymmetric unit of the title compound, [Cu(2)(C(16)H(31)O(2))(4)(C(10)H(8)N(2))(2)]·2CH(3)OH, contains one half-mol-ecule of the metal complex solvated by a methanol mol-ecule. In the complex, two of the metal atoms are doubly bridged by two monodentate bridging hexa-deca-noate ligands around a center of inversion. The square-pyramidal geometry around each Cu(II) ion is completed by a terminal hexa-deca-noate O atom and two N atoms from a 2,2'-bipyridine ligand. The alkyl chains of the carboxyl-ate ligands are arranged in a parallel manner with an all-trans conformation. In the crystal, a π-π inter-action formed by the bipyridine rings [centroid-centroid separation = 3.7723 (17) Å] and inter-molecular C-H⋯O hydrogen bonds link the complex mol-ecules into infinite chains along the b axis. An O-H⋯O interaction between the methanol solvate and one of the carboxylate O atoms is also observed.

| S-EPMC3089362 | biostudies-literature

Tetra-kis(μ-2-methyl-benzoato)bis-[(2-methyl-benzoic acid)copper(II)].

Project description:In the title centrosymmetric dinuclear compound, [Cu(2)(C(8)H(7)O(2))(4)(C(8)H(8)O(2))(2)], four o-toluate anions form a cage around two Cu atoms in a syn-syn configuration. Two more o-toluic acid mol-ecules are apically bonded to the Cu atoms, which show a square-pyramidal coordination geometry. The acid H atoms are hydrogen bonded to the cage carboxyl O atoms [O⋯O = 2.660 (2) Å]. The mol-ecular packing forms a puckered pseudo-hexa-gonal close-packed layer in the (h00) plane, with soft inter-molecular H⋯H contacts (2.46-2.58 Å).

| S-EPMC2960998 | biostudies-literature

Tetra-kis(?-2-methyl-benzoato-?O:O')bis-[(methanol-?O)copper(II)].

Project description:In the title compound, [Cu(2)(C(8)H(7)O(2))(4)(CH(3)OH)(2)], the Cu-O bond distances are in the range 1.943?(2)-2.149?(2)?Å within a sligthly distorted square-pyramidal coordination. The Cu?Cu separation is 2.5912?(4)?Å. In the crystal, the mol-ecules are linked into polymeric chains propagating in [001] by inter-molecular O-H?O hydrogen bonds and C-H?? inter-actions.

| S-EPMC2979172 | biostudies-literature

Tetra-kis(?-4-methyl-benzoato-?O:O')bis-[(isonicotinamide-?N)copper(II)].

Project description:In the title centrosymmetric binuclear complex, [Cu(2)(C(8)H(7)O(2))(4)(C(6)H(6)N(2)O)(2)], the Cu atoms [Cu?Cu = 2.6375?(6)?Å] are bridged by four 4-methyl-benzoate (PMB) ligands. The four nearest O atoms around each Cu(II) ion form a distorted square-planar arrangement, and the distorted square-pyramidal coordination is completed by the pyridine N atom of the isonicotinamide (INA) ligand. Each Cu(II) ion is displaced by 0.2633?(1)?Å from the plane of the four O atoms, with an average Cu-O distance of 1.974?(2)?Å. The dihedral angles between carboxyl-ate groups and the adjacent benzene rings are 7.88?(19) and 9.68?(10)°, while the benzene rings are oriented at a dihedral angle of 85.90?(9)°. The pyridine ring is oriented at dihedral angles of 8.59?(7) and 83.89?(9)° with respect to the benzene rings. In the crystal structure, inter-molecular N-H?O hydrogen bonds link the mol-ecules into a three-dimensional network. ?-? contacts between the benzene rings and between the pyridine and benzene rings, [centroid-centroid distances = 3.563?(2) and 3.484?(2)?Å, respectively] may further stabilize the crystal structure.

| S-EPMC2983750 | biostudies-literature

cyclo-Tetra-kis(μ-3-acetyl-4-methyl-1H-pyrazole-5-carboxyl-ato-κN,O:N,O)tetra-kis[aqua-copper(II)] tetra-deca-hydrate.

Project description:The title compound, [Cu(4)(C(7)H(6)N(2)O(3))(4)(H(2)O)(4)]·14H(2)O, a tetra-nuclear [2 × 2] grid-type complex with S4 symmetry, contains four Cu(II) atoms which are bridged by four pyrazole-carboxyl-ate ligand anions and are additionally bonded to a water molecule. Each Cu(II) atom is coordinated by two O atoms of the carboxyl-ate and acetyl groups, two pyrazole N atoms of doubly deprotonated 3-acetyl-4-methyl-1H-pyrazole-5-carb-oxy-lic acid and one O atom of a water mol-ecule. The geometry at each Cu(II) atom is distorted square-pyramidal, with the two N and two O atoms in the equatorial plane and O atoms in the axial positions. O-H⋯O hydrogen-bonding interactions additionally stabilize the structure. One of the uncoordinated water molecules shows half-occupancy.

| S-EPMC3200935 | biostudies-literature

Tetra-kis(?-4-methyl-benzoato-?O:O')bis-{[4-(dimethyl-amino)pyridine-?N]zinc(II)}.

Project description:In the centrosymmetric title binuclear complex, [Zn(2)(C(8)H(7)O(2))(4)(C(7)H(10)N(2))(2)], the Zn atoms [Zn?Zn = 3.0287?(6)?Å] are bridged by four 4-methyl-benzoate ligands. The four nearest O atoms around each Zn(II) atom form a distorted square-planar arrangement with the distorted square-pyramidal coordination completed by the pyridine N atom of the 4-(dimethyl-amino)pyridine ligand. In the crystal structure, weak inter-molecular C-H?O inter-actions link the mol-ecules into infinite chains. The chains are further linked by weak C-H?? inter-actions, forming a three-dimensional network.

| S-EPMC2977470 | biostudies-literature

Tetra-kis-(μ-benzoato-κO:O')bis{[4-(di-methyl-amino)-pyridine-κN]zinc(II)}.

Project description:In the centrosymmetric binuclear title complex, [Zn(2)(C(7)H(5)O(2))(4)(C(7)H(10)N(2))(2)], the Zn atoms [Zn⋯Zn = 3.0037 (6) Å] are bridged by four benzoate ligands. Each of the Zn atoms assumes an approximately square-pyramidal environment, with four O atoms in a plane and the pyridine N atom at the apical site.

| S-EPMC3051476 | biostudies-literature

Tetra-kis(4-amino-pyridine-κN)dichlorido-copper(II) monohydrate.

Project description:The asymmetric unit of the title compound, [CuCl(2)(C(5)H(6)N(2))(4)]·H(2)O, contains two crystallographically independent complex mol-ecules and two water mol-ecules. The Cu(II) ion in each mol-ecule is six-coordinated in an elongated octa-hedral geometry, with the equatorial plane defined by four pyridine N atoms of four amino-pyridine ligands and the axial positions occupied by two Cl atoms. In the crystal structure, mol-ecules are linked into a three-dimensional framework by C-H⋯Cl, O-H⋯Cl, N-H⋯O, N-H⋯Cl and N-H⋯N hydrogen bonds and C/N-H⋯π inter-actions involving the pyridine rings.

| S-EPMC2961768 | biostudies-literature

Tetra-kis(?(2)-2,2-dimethyl-propanoato-?O,O')bis-[(pyridine-?N)copper(II)]: a monoclinic polymorph.

Project description:The structure of the dinuclear title complex, [Cu(2)(C(5)H(9)O(2))(4)(C(5)H(5)N)(2)], represents a monoclinic polymorph of the previously reported triclinic form [Blewett et al. (2006 ?). Acta Cryst. E62, m420-m422]. Each carboxyl-ate group is bidentate bridging and the distorted octa-hedral geometry about each Cu(II) atom is completed by a pyridine N atom and the other Cu atom [Cu?Cu = 2.6139?(7)?Å]. In the crystal, mol-ecules are connected into supra-molecular chains via ?-? inter-actions formed by the pyridine rings [centroid-centroid distance = 3.552?(3)?Å] and these are connected into a two-dimensional array in the ac plane by C-H?? contacts. One of the tert-butyl groups is disordered over two orientations in a 0.734?(6):0.266?(6) ratio.

| S-EPMC2979036 | biostudies-literature