Poly[tetraamminecopper(II) bis[tris(μ2-cyanido-κ2C,N)dicuprate(I)]]: a unique CuI–CuIImixed-valence complex containing anionic cuprous cyanide layers and [Cu(NH3)4]2+cations

2012 ◽  
Vol 68 (2) ◽  
pp. m45-m47 ◽  
Author(s):  
Li-Na Jia ◽  
Lei Hou
Keyword(s):  
Hydrogen Bonding ◽  
Mixed Valence ◽  
Planar Geometry ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Hydrogen Bonding Interactions ◽  
Square Planar ◽  
Anionic Layer ◽  
Cuprous Cyanide ◽  
Cyanide Ligands

The title compound, {[Cu(NH3)4][Cu(CN)3]2}n, features a CuI–CuIImixed-valence CuCN framework based on {[Cu2(CN)3]−}nanionic layers and [Cu(NH3)4]2+cations. The asymmetric unit contains two different CuIions and one CuIIion which lies on a centre of inversion. Each CuIion is coordinated to three cyanide ligands with a distorted trigonal–planar geometry, while the CuIIion is ligated by four ammine ligands, with a distorted square-planar coordination geometry. The interlinkage between CuIions and cyanide bridges produces a honeycomb-like {[Cu2(CN)3]−}nanionic layer containing 18-membered planar [Cu(CN)]6metallocycles. A [Cu(NH3)4]2+cation fills each metallocyclic cavity within pairs of exactly superimposed {[Cu2(CN)3]−}nanionic layers, but there are no cations between the layers of adjacent pairs, which are offset. Pairs of N—H...N hydrogen-bonding interactions link the N—H groups of the ammine ligands to the N atoms of cyanide ligands.

scholarly journals (2,2′-Bipyridine-κ2N,N′)bis(4-formylbenzoato-κO1)copper(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m1062-m1063 ◽  
Author(s):  
Jin-li Qi ◽  
Wei Xu
Keyword(s):  
Hydrogen Bonding ◽  
Rotation Axis ◽  
Planar Geometry ◽  
Carboxylate Group ◽  
Two Dimensional ◽  
Complex Molecules ◽  
Bipy Ligand ◽  
Hydrogen Bonding Interactions ◽  
Carboxylate Groups ◽  
Square Planar

The title mononuclear CuIIcomplex, [Cu(C8H5O3)2(C10H8N2)], is comprised of a CuIIcation, two 4-formylbenzoate (L−) ligands and a 2,2′-bipyridine (bipy) ligand. The CuIIion and bipy ligand lie on a crystallographic twofold rotation axis; the CuIIion is coordinated by two N atoms from one bipy ligand and two O atoms from two different carboxylate groups of twoL−ligands, exhibiting effectively a distorted square-planar geometry. The complex molecules are interlinked to generate two-dimensional supramolecular layers in theabplane, formed by C—H...O hydrogen bonds, where the O acceptor is the O atom from the carboxylate group not involved in coordination to the CuIIion. The two-dimensional layers are stacked in a sequenceviaC—H...O hydrogen-bonding interactions where the formyl O atom acts as acceptor.

scholarly journals Bis(4-aminophenylhydroxamato-κ2 O,O′)copper(II) methanol disolvate

IUCrData ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Yansi Zhao ◽  
Yanmei Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Title Complex ◽  
Planar Geometry ◽  
Asymmetric Unit ◽  
Bidentate Ligands ◽  
Metal Centre ◽  
Square Planar ◽  
Solvent Molecules

In the title complex, [Cu(C7H7N2O2)2]·2CH3OH, the metal centre is coordinated by two 4-aminophenylhydroxamate bidentate ligands, in a distorted square-planar geometry. The asymmetric unit is completed by two methanol solvent molecules, which are involved in hydrogen bonding with N—H functionalities of the free hydroxamate groups. The crystal structure also features N—H...O bonds formed by the NH2 groups, and O—H...O hydrogen bonds with the methanol solvent molecules as donors.

scholarly journals Poly[diaqua(μ5-1H-imidazole-4,5-dicarboxylato)(μ4-1H-imidazole-4,5-dicarboxylato)trisilver(I)ytterbium(III)]

2012 ◽  
Vol 68 (8) ◽  
pp. m1073-m1074
Author(s):  
Si-Ming Zhu
Keyword(s):  
Hydrogen Bonding ◽  
Three Dimensional ◽  
The Other ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Hydrogen Bonding Interactions ◽  
Trigonal Prismatic Coordination ◽  
Trigonal Prismatic

The asymmetric unit of the title compound, [Ag3Yb(C5HN2O4)2(H2O)2]n, contains three AgIions, one YbIIIion, two imidazole-4,5-dicarboxylate ligands and two coordinating water molecules. The YbIIIatom is eight-coordinated, in a bicapped trigonal prismatic coordination geometry, by six O atoms from three imidazole-4,5-dicarboxylate ligands and two coordinating water molecules. The two-coordinated AgIions exhibit three types of coordination environments. One AgIatom is bonded to two N atoms from two different imidazole-4,5-dicarboxylate ligands. The other two AgIatoms are each coordinated by one O atom and one N atom from two different imidazole-4,5-dicarboxylate ligands. These metal coordination units are connected by bridging imidazole-4,5-dicarboxylate ligands, generating a two-dimensional heterometallic layer. These layers are stacked along theaaxisviaO—H...O hydrogen-bonding interactions to generate a three-dimensional framework.

scholarly journals Bis(μ2-benzoato-κ2 O,O′)bis(benzoato-κO)bis(ethanol-κO)bis(μ3-hydroxido)hexakis(μ-pyrazolato-κ2 N,N′)hexacopper(II) ethanol disolvate

IUCrData ◽  
2019 ◽  
Vol 4 (9) ◽  
Author(s):  
Marisol Ledezma-Gairaud ◽  
Leslie W. Pineda
Keyword(s):  
Hydrogen Bonding ◽  
Solvent Molecule ◽  
The Other ◽  
Hydroxyl Group ◽  
Asymmetric Unit ◽  
Coordination Environment ◽  
Hydrogen Bonding Interactions ◽  
Carboxylate Groups ◽  
Square Planar ◽  
Supramolecular Arrangements

Trinuclear copper–pyrazolate entities are present in various Cu-based enzymes and nanojar supramolecular arrangements. The reaction of copper(II) chloride with pyrazole (pzH) and sodium benzoate (benzNa) assisted by microwave radiation afforded a neutral centrosymmetric hexanuclear copper(II) complex, [Cu6(C7H5O2)4(OH)2(C3H3N2)6(C2H5OH)2]·2C2H5OH. Half a molecule is present in the asymmetric unit that comprises a [Cu3(μ3-OH)(pz)3]2+ core with the copper(II) atoms arranged in an irregular triangle. The three copper(II) atoms are bridged by an O atom of the central hydroxyl group and by three bridging pyrazolate ligands on each of the sides. The carboxylate groups show a chelating mode to one and a bridging syn,syn mode to the other two CuII atoms. The coordination environment of one CuII atom is square-planar while it is distorted square-pyramidal for the other two. Two ethanol molecules are present in the asymmetric unit, one binding to one of the CuII atoms, one as a solvent molecule. In the crystal, stabilization arises from intermolecular O—H...O hydrogen-bonding interactions.

Bis[4-(dimethylamino)pyridinium] bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S,S′)cuprate(II)

2006 ◽  
Vol 62 (5) ◽  
pp. m1119-m1121
Author(s):  
H. Zhou ◽  
X.-M. Ren
Keyword(s):  
Hydrogen Bonding ◽  
Chain Structure ◽  
Planar Geometry ◽  
Dimensional Chain ◽  
One Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Square Planar ◽  
Anions And Cations

In the title salt (C7H11N2)2[Cu(C4N2S2)2], the Cu2+ ion is coordinated by four S atoms of two 1,2-dicyanoethene-1,2-dithiolate (or maleonitriledithiolate, mnt2−) ligands in an approximate square-planar geometry. The Cu atom is located on an inversion centre. Strong hydrogen-bonding interactions between the pyridinium proton and the CN groups of the mnt2− ligand link anions and cations into a one-dimensional chain structure.

scholarly journals Crystal structure of [2,13-bis(acetamido)-5,16-dimethyl-2,6,13,17-tetraazatricyclo[16.4.0.07,12]docosane-κ4 N]silver(II) dinitrate from synchrotron X-ray data

2018 ◽  
Vol 74 (4) ◽  
pp. 461-464 ◽  
Author(s):  
Dohyun Moon ◽  
Jong-Ha Choi
Keyword(s):  
Crystal Structure ◽  
Crystal Packing ◽  
Planar Geometry ◽  
Nitrate Anion ◽  
Asymmetric Unit ◽  
Weakly Bound ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Square Planar ◽  
Nitrate Anions

The asymmetric unit of the title compound, [Ag(C24H46N6O2)](NO3)2 [C24H46N6O2 is (5,16-dimethyl-2,6,13,17-tetraazatricyclo[16.4.0.07,12]docosane-2,13-diyl)diacetamide, L], consists of one independent half of the [Ag(C24H46N6O2)]2+ cation and one nitrate anion. The Ag atom, lying on an inversion centre, has a square-planar geometry and the complex adopts a stable trans-III conformation. Interestingly, the two O atoms of the pendant acetamide groups are not coordinated to the AgII ion. The longer distance of 2.227 (2) Å for Ag—N(tertiary) compared to 2.134 (2) Å for Ag—N(secondary) may be due to the effects of the attached acetamide group on the tertiary N atom. Two nitrate anions are very weakly bound to the AgII ion in the axial sites and are further connected to the ligand of the cation by N—H...O hydrogen bonds. The crystal packing is stabilized by hydrogen-bonding interactions among the N—H donor groups of the macrocycle and its actetamide substituents, and the O atoms of the nitrate anions and of an acetamide group as the acceptor atoms.

scholarly journals trans-Chlorido(4-fluorobenzenethiolato-κS)bis(triphenylphosphane-κP)palladium(II) methanol hemisolvate

2014 ◽  
Vol 70 (3) ◽  
pp. m92-m93
Author(s):  
Alcives Avila-Sorrosa ◽  
Ericka Santacruz-Juárez ◽  
Alicia Reyes-Arellano ◽  
Reyna Reyes-Martínez ◽  
David Morales-Morales
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Sphere ◽  
Title Compound ◽  
Solvent Molecule ◽  
Planar Geometry ◽  
Complex Molecules ◽  
Hydrogen Bonding Interactions ◽  
Square Planar

The title compound, [Pd(SC6H4F-p)Cl(PPh3)2]·0.5CH3OH, features a PdIIcomplex with two triphenylphosphane (PPh3) ligands arranged in atransconformation, with one chloride and one 4-fluorobenzenethiolate ligand completing the coordination sphere, giving rise to a slightly distorted square-planar geometry of the PdIIion. The methanol solvent molecule is disordered about an inversion centre with an occupancy of 0.25 for each molecule. In the crystal, weak C—H...Cl hydrogen-bonding interactions between the complex molecules generate chain frameworks parallel to [010].

scholarly journals Dichloridobis[1-(2,4,6-trimethylphenyl)-1H-imidazole-κN3]copper(II)

2013 ◽  
Vol 69 (11) ◽  
pp. m621-m621
Author(s):  
Yantao Zhang ◽  
Zhuzhen Lin
Keyword(s):  
Hydrogen Bonding ◽  
Benzene Ring ◽  
Molecular Conformation ◽  
Organic Ligand ◽  
Imidazole Ring ◽  
Title Complex ◽  
Planar Geometry ◽  
Hydrogen Bonding Interactions ◽  
Square Planar ◽  
Imidazole Ligands

In the title complex, [CuCl2(C12H14N2)2], the Cu2+cation is situated on an inversion centre and is coordinated by two N atoms from symmetry-related 1-mesityl-1H-imidazole ligands and by two chloride anions in a slightly distorted square-planar geometry. In the organic ligand, the dihedral angle between the benzene ring of the mesityl moiety and the imidazole ring is 76.99 (18)°. Weak intramolecular C—H...Cl hydrogen-bonding interactions consolidate the molecular conformation.

scholarly journals Crystal structure of a palladium(II) complex containing the wide bite-angle bis(selenium) ligand, cis-[( t BuNH)(Se)P(μ-N t Bu)2P(Se)(NH t Bu)]

2018 ◽  
Vol 74 (2) ◽  
pp. 180-183
Author(s):  
Austin Bonnette ◽  
Joel T. Mague ◽  
Perumalreddy Chandrasekaran
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Bond Distance ◽  
Planar Geometry ◽  
Bite Angle ◽  
Hydrogen Bonding Interactions ◽  
Square Planar

A palladium(II) complex {systematic name: dichlorido[1,3-di-tert-butyl-2,4-bis(tert-butylamino)-1,3,2λ5,4λ5-diazadiphosphetidine-2,4-diselone-κ2 Se,Se′]palladium(II)}, cis-[PdCl2{I}], (II), containing a bis(selenium) ligand based on cyclodiphosph(V)azane, cis-[( t BuNH)(Se)P(μ-N t Bu)2P(Se)(NH t Bu)], (I), has been synthesized and structurally characterized. The crystal structure of complex II reveals that the ligand chelates through selenium donors with the natural bite-angle of 110.54 (1)° and a Pd—Se bond distance of 2.444 (1) Å. The coordination around PdII shows a slightly distorted square-planar geometry, as indicated by the angle between the [PdCl2] and [PdSe2] planes of 5.92 (3)°. In the crystal, the molecules are interlinked through weak N—H...Cl and C—H...Cl hydrogen-bonding interactions.

scholarly journals Bis(methanol-κO)bis{5-(pyridin-2-yl-κN)-3-[4-(pyridin-4-yl)phenyl]-1H-1,2,4-triazol-1-ido-κN1}cobalt(II)

IUCrData ◽  
2016 ◽  
Vol 1 (8) ◽  
Author(s):  
Zhen Peng ◽  
Liang Xia ◽  
Wen-Wen Dong
Keyword(s):  
Hydrogen Bonding ◽  
Equatorial Plane ◽  
Octahedral Coordination ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network

The asymmetric unit of the title CoIIcomplex, [Co(C18H12N5)2(CH3OH)2], contains one half-molecule, and the complex is completed by application of an inversion centre. The CoIIcation is coordinated by two deprotonated 1,2,4-triazole-based ligands, and two methanol molecules, in an N4O2octahedral coordination geometry. Four N atoms are placed in the equatorial plane, whiletrans-methanol molecules occupy the axial positions. In the crystal, neighbouring complexes are linkedviaO—H...N hydrogen-bonding interactions, involving the methanol as donor and non-coordinating N triazole sites as acceptor groups, forming a two-dimensional network parallel to (100).

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