scholarly journals [(4-Methylbenzyl)bis(pyridin-2-ylmethyl)amine-κ3N,N′,N′′]bis(thiocyanato-κS)copper(II) dichloromethane hemisolvate

2012 ◽  
Vol 68 (4) ◽  
pp. m468-m468 ◽  
Author(s):  
Yan Qi ◽  
Yang Li ◽  
Zheng-Ping Ma ◽  
Qiu-Yun Chen
Keyword(s):  
Title Compound ◽  
Solvent Molecule ◽  
Asymmetric Unit ◽  
Complex Molecules ◽  
Pyramidal Geometry ◽  
Square Pyramidal Geometry ◽  
Amine Ligand

The title compound, [Cu(NCS)2(C20H21N3)]·0.5CH2Cl2, crystallized with two independent complex molecules (AandB) in the asymmetric unit, accompanied by one dichloromethane solvent molecule. Each CuIIatom has a square-pyramidal geometry, being coordinated by five N atoms, three from the (4-methylbenzyl)bis(pyridin-2-ylmethyl)amine ligand and two from the thiocyanate ligands. In the crystal, theBmolecules are linkedviaC—H...S interactions, forming chains propagating along [100].

scholarly journals Crystal structure of orthorhombic {bis[(pyridin-2-yl)methyl](3,5,5,5-tetrachloropentyl)amine-κ3N,N′,N′′}chloridocopper(II) perchlorate

2015 ◽  
Vol 71 (7) ◽  
pp. 847-851 ◽  
Author(s):  
Katherine A. Bussey ◽  
Annie R. Cavalier ◽  
Jennifer R. Connell ◽  
Margaret E. Mraz ◽  
Kayode D. Oshin ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Planar Geometry ◽  
Apical Position ◽  
Pyramidal Geometry ◽  
Counter Ion ◽  
Square Planar ◽  
Chloride Ligand ◽  
Square Pyramidal Geometry ◽  
Amine Ligand

In the title compound, [CuCl(C17H19Cl4N3)]ClO4, the CuIIion adopts a distorted square-planar geometry defined by one chloride ligand and the three nitrogen atoms from the bis[(pyridin-2-yl)methyl](3,5,5,5-tetrachloropentyl)amine ligand. The perchlorate counter-ion is disordered over three sets of sites with refined occupancies 0.0634 (17), 0.221 (16) and 0.145 (7). In addition, the hetero-scorpionate arm of the bis[(pyridin-2-yl)methyl](3,5,5,5-tetrachloropentyl)amine ligand is disordered over two sets of sites with refined occupancies 0.839 (2) and 0.161 (2). In the crystal, weak Cu...Cl interactions between symmetry-related molecules create a dimerization with a chloride occupying the apical position of the square-pyramidal geometry typical of many copper(II) chloride hetero-scorpionate complexes.

scholarly journals Crystal structure of (4-cyanopyridine-κN){5,10,15,20-tetrakis[4-(benzoyloxy)phenyl]porphyrinato-κ4N}zinc–4-cyanopyridine (1/1)

2016 ◽  
Vol 72 (2) ◽  
pp. 164-169 ◽  
Author(s):  
Soumaya Nasri ◽  
Nesrine Amiri ◽  
Ilona Turowska-Tyrk ◽  
Jean-Claude Daran ◽  
Habib Nasri
Keyword(s):  
Crystal Structure ◽  
Bond Length ◽  
Title Compound ◽  
Axial Ligand ◽  
Complex Molecules ◽  
Zinc Cation ◽  
Π Interactions ◽  
Pyramidal Geometry ◽  
Π Stacking ◽  
Square Pyramidal Geometry

In the title compound, [Zn(C72H44N4O8)(C6H4N2)]·C6H4N2or [Zn(TPBP)(4-CNpy]·(4-CNpy) [where TPBP and 4-CNpy are 5,10,15,20-(tetraphenylbenzoate)porphyrinate and 4-cyanopyridine, respectively], the ZnIIcation is chelated by four pyrrole-N atoms of the porphyrinate anion and coordinated by a pyridyl-N atom of the 4-CNpy axial ligand in a distorted square-pyramidal geometry. The average Zn—N(pyrrole) bond length is 2.060 (6) Å and the Zn—N(4-CNpy) bond length is 2.159 (2) Å. The zinc cation is displaced by 0.319 (1) Å from the N4C20mean plane of the porphyrinate anion toward the 4-cyanopyridine axial ligand. This porphyrinate macrocycle exhibits major saddle and moderate ruffling and doming deformations. In the crystal, the [Zn(TPBP)(4-CNpy)] complex molecules are linked togetherviaweak C—H...N, C—H...O and C—H...π interactions, forming supramolecular channels parallel to thecaxis. The non-coordinating 4-cyanopyridine molecules are located in the channels and linked with the complex molecules,viaweak C—H...N interactions and π-π stacking orviaweak C—H...O and C—H...π interactions. The non-coordinating 4-cyanopyridine molecule is disordered over two positions with an occupancy ratio of 0.666 (4):0.334 (4).

scholarly journals cyclo-Tetrakis{μ-N′-[(8-oxidoquinolin-7-yl)methylidene]isonicotinohydrazidato}tetrazinc tetrahydrate

2012 ◽  
Vol 68 (6) ◽  
pp. m727-m728
Author(s):  
Xiang-Wen Wu ◽  
Qing-Long Li ◽  
Jian-Ping Ma ◽  
Yu-Bin Dong
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Water Molecules ◽  
Deprotonated Form ◽  
Complex Molecules ◽  
Lattice Water ◽  
Pyramidal Geometry ◽  
Centroid Distance ◽  
A Chain ◽  
Square Pyramidal Geometry

In the title compound, [Zn4(C16H10N4O2)4]·4H2O, the N′-[(8-oxidoquinolin-7-yl)methylidene]isonicotinohydrazidate (L 2−) ligand binds to the metal ions, forming stable five- and six-membered chelate rings, leaving the pyridyl groups free. The compound is a tetranuclear ZnII complex centered about a fourfold roto-inversion axis, with the ligand coordinating in the doubly deprotonated form. The ZnII atom has a distorted square-pyramidal geometry being coordinated by one N and two O-atom donors from the doubly deprotonated L 2− ligand, and by one N atom and one O-atom donor from a symmetry-related L 2− ligand. In the crystal, four symmetry-related lattice water molecules, centred about a fourfold roto-inversion axis, form a cyclic tetramer through O—H...O hydrogen bonds. These tetramers connect to the complex molecules through O—H...N hydrogen bonds, forming a chain propagating along [100]. Neighbouring molecules are linked by π–π interactions [centroid–centroid distance = 3.660 (2) Å] involving the quinolidine rings.

scholarly journals Crystal structure of {(R)-N2-[(benzo[h]quinolin-2-yl)methyl]-N2′-[(benzo[h]quinolin-2-yl)methylidene]-1,1′-binaphthyl-2,2′-diamine-κ4N,N′,N′′,N′′′}(trifluoromethanesulfonato-κO)zinc(II)} trifluoromethanesulfonate dichloromethane 1.5-solvate

2017 ◽  
Vol 73 (7) ◽  
pp. 949-953
Author(s):  
Shayna R. Skokan ◽  
Monica M. Reeson ◽  
Kayode D. Oshin ◽  
Anastasiya I. Vinokur ◽  
John A. Desper ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Metal Atom ◽  
Title Compound ◽  
Asymmetric Unit ◽  
Torsion Angles ◽  
Positional Disorder ◽  
Bond Lengths ◽  
Pyramidal Geometry ◽  
Imine Bond ◽  
Square Pyramidal Geometry

The zinc(II) atom in the title compound, [Zn(C48H31N4)(CF3SO3)](CF3SO3)·1.5CH2Cl2, adopts a distorted five-coordinate square-pyramidal geometry. It is coordinated by one trifluoromethanesulfonate ligand and four N atoms of theN2-[(benzo[h]quinolin-2-yl)methyl]-N2′-[(benzo[h]quinolin-2-yl)methylidene]-1,1′-binaphthyl-2,2′-diamine ligand. The complex is present as a single-strandedP-helimer monohelical structure incorporating π–π and/or σ–π interactions. One of the imine bonds present in the original ligand framework is reduced, leading to variations in bond lengths and torsion angles for each side of the ligand motif. The imine-bond reduction also affects the bond lengths involving the metal atom with the N-donor atoms located on the imine bond. There are two molecules of the complex in the asymmetric unit. One of the molecules exhibits positional disorder within the coordinating trifluoromethanesulfonate ion making the molecules symmetrically non-equivalent.

scholarly journals Crystal structure of {(but-3-en-1-yl)bis[(pyridin-2-yl)methyl]amine-κ3N,N′,N′′}dichloridocopper(II) diethyl ether hemisolvate

2015 ◽  
Vol 71 (3) ◽  
pp. 309-311
Author(s):  
Katherine A. Bussey ◽  
Jennifer R. Connell ◽  
Annie R. McGlone ◽  
Margaret E. Mraz ◽  
Kayode D. Oshin ◽  
...  
Keyword(s):  
Rotation Axis ◽  
Solvent Molecule ◽  
Radical Addition ◽  
Title Complex ◽  
Complex Molecules ◽  
Methyl Amine ◽  
Pyramidal Geometry ◽  
Atom Transfer Radical Addition ◽  
Square Pyramidal Geometry ◽  
Cl Atoms

The five-coordinate CuIIatom in the title complex [CuCl2(C16H19N3)]·0.5C4H10O, adopts a near-ideal square-pyramidal geometry (τ-5 = 0.01). The apical Cu—Cl distance is 0.2626 (6) Å longer than the basal Cu—Cl distance. Weak C—H...Cl interactions between pyridine rings and the Cl atoms of adjacent complex molecules are present. The solvent molecule, located on a twofold rotation axis, is situated in the voids of this arrangement. Copper atoms coordinated by tridentate nitrogen-containing ligands have been found to be excellent promoters of Atom Transfer Radical Addition (ATRA) reactions.

scholarly journals Crystal structure and Hirshfeld surface analysis of diiodido{N′-[(E)-(phenyl)(pyridin-2-yl-κN)methylidene]pyridine-2-carbohydrazide-κ2 N′,O}cadmium(II)

2019 ◽  
Vol 75 (7) ◽  
pp. 1061-1064
Author(s):  
Zeliha Atioğlu ◽  
Farhad Akbari Afkhami ◽  
Mehmet Akkurt ◽  
Ali Akbar Khandar ◽  
Duane Choquesillo-Lazarte
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Title Compound ◽  
Hirshfeld Surface ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Apical Position ◽  
Pyramidal Geometry ◽  
Independent Molecules ◽  
Square Pyramidal Geometry

In each of the two independent molecules in the asymmetric unit of the title compound, [CdI2(C18H14N4O)], the N,O,N′-tridentate N′-[(E)-(phenyl)(pyridin-2-yl-κN)methylidene]pyridine-2-carbohydrazide ligand and two iodide anions form an I2N2O pentacoordination sphere, with a distorted square-pyramidal geometry, with an I atom in the apical position. Both molecules feature an intramolecular N—H...N hydrogen bond. In the crystal, weak aromatic π–π stacking interactions [centroid–centroid separation = 3.830 (2) Å] link the molecules into dimers.

scholarly journals (Acetylacetonato-κ2O,O′)carbonyl[tris(naphthalen-1-yl)phosphane-κP]rhodium(I) acetone hemisolvate

2012 ◽  
Vol 68 (4) ◽  
pp. m394-m394
Author(s):  
Hezron Ogutu ◽  
Reinout Meijboom
Keyword(s):  
Title Compound ◽  
Solvent Molecule ◽  
Asymmetric Unit ◽  
Complex Molecules ◽  
Square Planar

The title compound, [Rh(C5H7O2)(C30H21P)(CO)]·0.5C3H6O, has two different complex molecules in the asymmetric unit, with the RhIatoms in slightly distorted square-planar coordination environments. The molecules are packed as two monomeric molecules with one acetone solvent molecule sitting at the centre.

A hydrostable and twofold interpenetrating three-dimensional zinc–organic framework with rob topology based on 4,4′-oxydibenzoate and 3,3′-dimethyl-4,4′-bipyridine ligands

2016 ◽  
Vol 72 (5) ◽  
pp. 373-378 ◽  
Author(s):  
Feng-Lan Liang ◽  
De-Yun Ma ◽  
Liang Qin
Keyword(s):  
Title Compound ◽  
Three Dimensional ◽  
New Class ◽  
Pyramidal Geometry ◽  
Potential Applications ◽  
Metal Organic ◽  
Ph Range ◽  
Square Pyramidal Geometry ◽  
Bright Blue Fluorescence ◽  
Bright Blue

Metal–organic frameworks (MOFs) are a new class of porous materials that have received widespread attention due to their potential applications in gas storage and/or separation, catalysis, luminescence, and so on. The title compound, poly[[(μ2-3,3′-dimethyl-4,4′-bipyridine-κ2N:N′)bis(μ4-4,4′-oxydibenzoato-κ4O:O′:O′′:O′′′)dizinc] tetrahydrate], {[Zn2(C14H8O5)2(C12H12N2)]·4H2O}n, has been prepared by the solvothermal assembly of Zn(NO3)2·6H2O, 4,4′-oxydi(benzoic acid) and 3,3′-dimethyl-4,4′-bipyridine. The two ZnIIatoms adopt the same five-coordinated distorted square-pyramidal geometry (i.e.ZnO4N), bonding to four O atoms from four different 4,4′-oxydibenzoate (oba) ligands and one N atom from a 3,3′-dimethyl-4,4′-bipyridine (dmbpy) ligand. The supramolecular secondary building unit (SBU) is a paddle-wheel [Zn2(COO)4] unit and these units are linked by oba ligands within the layer to form a two-dimensional net parallel to thebaxis, with the dmbpy ligands pointing alternately up and down, which is further extended by dmbpy ligands to form a three-dimensional framework withrobtopology. The single net leaves voids that are filled by mutual interpenetration of an independent equivalent framework in a twofold interpenetrating architecture. The title compound shows thermal stability up to 673 K and is stable in aqueous solutions in the pH range 5–9. Excitation and luminescence data observed at room temperature show that it emits a bright-blue fluorescence.

scholarly journals Crystal structure of chlorido(5,10,15,20-tetraphenylporphyrinato-κ4N)manganese(III) 2-aminopyridine disolvate

2015 ◽  
Vol 71 (2) ◽  
pp. 165-167 ◽  
Author(s):  
Wafa Harhouri ◽  
Salma Dhifaoui ◽  
Shabir Najmudin ◽  
Cecilia Bonifácio ◽  
Habib Nasri
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Axial Ligand ◽  
Pyramidal Geometry ◽  
Porphyrin Macrocycle ◽  
Planar Conformation ◽  
Solvent Molecules ◽  
Square Pyramidal Geometry

In the title compound, [Mn(C44H28N4)Cl]·2C5H6N2, the MnIIIcentre is coordinated by four pyrrole N atoms [averaged Mn—N = 2.012 (4) Å] of the tetraphenylporphyrin molecule and one chloride axial ligand [Mn—Cl = 2.4315 (7) Å] in a square-pyramidal geometry. The porphyrin macrocycle exhibits a non-planar conformation with majorrufflingandsaddlingdistortions. In the crystal, two independent solvent molecules form dimers through N—H...N hydrogen bonding. In these dimers, one amino N atom has a short Mn...N contact of 2.642 (1) Å thus completing the Mn environment in the form of a distorted octahedron, and another amino atom generates weak N—H...Cl hydrogen bonds, which link further all molecules into chains along theaaxis.

Di-μ-2-sulfonatobenzoato-bis[aqua(1,10-phenanthroline)copper(II)] trihydrate

2006 ◽  
Vol 62 (4) ◽  
pp. m875-m877
Author(s):  
Wei-Bing Zhang ◽  
Shuang-Di Ruan ◽  
Shu-Juan Zhu ◽  
Hong-Ping Xiao ◽  
Sai-Ya Ye
Keyword(s):  
Hydrogen Bond ◽  
Network Structure ◽  
Title Compound ◽  
Intermolecular Hydrogen Bond ◽  
Two Dimensional ◽  
Bridging Ligands ◽  
Pyramidal Geometry ◽  
Hydrogen Bond Interactions ◽  
Dimensional Network ◽  
Square Pyramidal Geometry

In the title compound, [Cu2(C7H4O5S)2(C12H8N2)2(H2O)2]·3H2O, each copper(II) atom is coordinated by two N atoms from one 1,10-phenanthroline molecule, two carboxylate O atoms from two 2-sulfonatobenzoato dianions and one aqua O atom in a distorted square pyramidal geometry. The 2-sulfonatobenzoato dianions function as μ2-bridging ligands in the formation of a dinuclear complex. Intermolecular hydrogen-bond interactions link the dinuclear units into a two-dimensional network structure.

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