scholarly journals catena-Poly[[bis(1H-indole-5-carboxylato-κ2 O,O′)zinc(II)]-μ-4,4′-azobipyridine-κ2 N 1:N 1′]

IUCrData ◽  
2021 ◽  
Vol 6 (5) ◽  
Author(s):  
Udhayasuriyan Sathya ◽  
Jeyaraman Selvaraj Nirmal Ram ◽  
Sundaramoorthy Gomathi ◽  
Samson Jegan Jennifer ◽  
Ibrahim Abdul Razak
Keyword(s):  
Coordination Polymer ◽  
Coordination Polyhedron ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Two Dimensional ◽  
Neutral Ligand ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Distorted Octahedral

The asymmetric unit of the title coordination polymer [Zn(C9H6NO2)2(C10H8N4)] n , consists of one ZnII cation, one bidentate 1H-indole-5-carboxylate (I5C) anion and half of a 4,4′-azobipyridine (Abpy) neutral ligand. In the coordination polyhedron, the ZnII ion adopts a distorted octahedral geometry. The coordination polymer is stabilized by a combination of N—H...O and C—H...π interactions, which leads to the formation of wave-like two-dimensional coordination polymeric layers.

scholarly journals Diaquabis(2,2′-bi-1H-imidazole)manganese(II) benzene-1,4-dicarboxylate

2012 ◽  
Vol 68 (6) ◽  
pp. m829-m829
Author(s):  
Lining Yang ◽  
Yanxiang Zhi ◽  
Jiahui Hei ◽  
Yanqing Miao
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Centroid Distance ◽  
Distorted Octahedral

The asymmetric unit of the title compound, [Mn(C6H6N4)2(H2O)2](C8H4O4), contains one-half each of the centrosymmetric cation and anion. The MnII atom is coordinated by four N atoms [Mn—N = 2.2168 (14) and 2.2407 (14) Å] from two 2,2′-biimidazole ligands and two water molecules [Mn—O = 2.2521 (14) Å] in a distorted octahedral geometry. Intermolecular N—H...O and O—H...O hydrogen bonds consolidate the crystal packing, which also exhibits π–π interactions between five-membered rings, with a centroid–centroid distance of 3.409 (2) Å.

scholarly journals Poly[[tetra-μ-cyanido-κ8C:N-dodeca-cyanido-κ12C-tris(N,N-dimethylformamide-κO)tris(methanol-κO)tris(3,4,7,8-tetramethyl-1,10-phenanthroline-κ2N,N′)trimanganese(II)ditungstate(V)] dihydrate]

2014 ◽  
Vol 70 (5) ◽  
pp. m170-m171
Author(s):  
Fei-Lin Yang ◽  
Dan Yang
Keyword(s):  
Water Molecule ◽  
Title Compound ◽  
Chain Structure ◽  
Octahedral Geometry ◽  
The Other ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Distorted Octahedral

The asymmetric unit of the title compound, {[Mn3{W(CN)8}2(C16H16N2)3(C3H7NO)3(CH3OH)3]·2H2O}n, consists of three [Mn(N,N-dimethylformamide)(methanol)(3,4,7,8-tetramethyl-1,10-phenanthroline)]2+cations, two [W(CN)8]3−anions and two water molecules. Each water molecule is disordered over three sets of sites, with a refined occupancy ratio of 0.310 (9):0.275 (9):0.415 (9) for one molecule and 0.335 (9):0.288 (9):0.377 (9) for the other molecule. The MnIIatoms exhibit a distorted octahedral geometry, while the WVatoms adopt a distorted square-antiprismatic geometry. The MnIIand WVatoms are linked alternatively through cyanide groups, forming a tetranuclear 12-atom rhombic metallacycle. Adjacent metallacycles are further connected by μ2-bridging cyanide anions, generating a 3,2-chain structure running parallel to [101]. Interchain π–π interactions are observed [centroid–centroid distances = 3.763 (3) and 3.620 (2) Å].

scholarly journals Poly[(μ6-benzene-1,3,5-tricarboxylato-κ6O1:O1′:O3:O3′:O5:O5′)tris(N,N-dimethylformamide-κO)tris(μ3-formato-κ3O:O:O′)trizinc(II)]

2013 ◽  
Vol 69 (11) ◽  
pp. m619-m619
Author(s):  
Jaeung Sim ◽  
Taemin Kim ◽  
Jin Kuk Yang
Keyword(s):  
Title Compound ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Distorted Octahedral

The asymmetric unit of the title compound, [Zn3(HCO2)3(C9H3O6)(C3H7NO)3]n, contains one Zn ion, one formate ligand, oneN,N-dimethylformamide (DMF) ligand and one-third of a benzene-1,3,5-tricarboxylate (btc) ligand situated on a crystallographic 3 axis. Each ZnIIatom is coordinated by one O atom from a DMF ligand, two O atoms from two btc ligands and three O atoms from three formate ligands in a distorted octahedral geometry. The ZnIIatoms are connected by the formate and btc ligands, forming hexanuclear cores, which are linked by btc ligands, constructing a two-dimensional layered network along theabplane.

scholarly journals Poly[aqua[μ2-1,2-bis(imidazol-1-ylmethyl)benzene-κ2N3:N3′](μ2-5-bromobenzene-1,3-dicarboxylato-κ3O1,O1′:O3)nickel(II)]

2009 ◽  
Vol 65 (6) ◽  
pp. m623-m623
Author(s):  
Kun Zhu ◽  
Hong Chen ◽  
Guang-Xiang Liu
Keyword(s):  
Coordination Polymer ◽  
Water Molecule ◽  
Layer Structure ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Two Dimensional ◽  
Distorted Octahedral ◽  
Coordinated Water

In the two-dimensional title coordination polymer, [Ni(C8H3BrO4)(C14H14N4)(H2O)]n, the NiIIatom adopts a distorted octahedral geometry, being ligated by three O atoms from two different 5-bromobenzene-1,3-dicarboxylate ligands, two N atoms from two 1,2-bis(imidazol-1-ylmethyl)benzene ligands and one coordinated water molecule. The Ni atoms are bridged by the 5-bromobenzene-1,3-dicarboxylate ligands, forming chains, which are further linked by 1,2-bis(imidazol-1-ylmethyl)benzene, generating a layer structure parallel to (001).

scholarly journals Tetrachlorido(1,10-phenanthroline-κ2N,N′)tin(IV) 1,2-dichloroethane hemisolvate

2009 ◽  
Vol 65 (6) ◽  
pp. m690-m690 ◽  
Author(s):  
Badri Z. Momeni ◽  
Frank Rominger ◽  
Simin S. Hosseini
Keyword(s):  
Title Compound ◽  
Crystal Packing ◽  
Interplanar Distance ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Asymmetric Unit ◽  
Aromatic Rings ◽  
Π Interactions ◽  
Distorted Octahedral

The asymmetric unit of the title compound, [SnCl4(C12H8N2)]·0.5C2H4Cl2, contains a tin complex and one disordered half-molecule of the solvent dichloroethane [occupancies 0.71 (2):0.29 (2)]. The six coordinate Sn(IV) atom adopts a distorted octahedral geometry. π–π interactions between adjacent aromatic rings [interplanar distance 3.483 (5) Å] seem to be effective in the stabilization of the crystal packing.

A two-dimensional CdII coordination polymer with 2,2′-(disulfanediyl)dibenzoate and 1,10-phenanthroline ligands

2014 ◽  
Vol 70 (5) ◽  
pp. 517-521
Author(s):  
Yu-Xiu Jin ◽  
Fang Yang ◽  
Li-Min Yuan ◽  
Chao-Guo Yan ◽  
Wen-Long Liu
Keyword(s):  
Coordination Polymer ◽  
Three Dimensional ◽  
Phen Ligand ◽  
Supramolecular Architecture ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Carboxylate Groups ◽  
Phenanthroline Ligand ◽  
Phenanthroline Ligands

In poly[[μ3-2,2′-(disulfanediyl)dibenzoato-κ5 O:O,O′:O′′,O′′′](1,10-phenanthroline-κ2 N,N′)cadmium(II)], [Cd(C14H8O4S2)(C12H8N2)] n , the asymmetric unit contains one CdII cation, one 2,2′-(disulfanediyl)dibenzoate anion (denoted dtdb2−) and one 1,10-phenanthroline ligand (denoted phen). Each CdII centre is seven-coordinated by five O atoms of bridging/chelating carboxylate groups from three dtdb2− ligands and by two N atoms from one phen ligand, forming a distorted pentagonal–bipyramidal geometry. The CdII cations are bridged by dtdb2− anions to give a two-dimensional (4,4) layer. The layers are stacked to generate a three-dimensional supramolecular architecture via a combination of aromatic C—H...π and π–π interactions. The thermogravimetric and luminescence properties of this compound were also investigated.

scholarly journals fac-[1,2-Bis(pyridin-4-yl)ethane-κN]tricarbonyl(1,10-phenanthroline-κ2N,N′)rhenium(I) hexafluoridophosphate acetonitrile monosolvate

2014 ◽  
Vol 70 (7) ◽  
pp. m278-m279 ◽  
Author(s):  
Silvana Guilardi ◽  
Antonio Otavio Toledo Patrocinio ◽  
Sinval Fernandes de Sousa ◽  
Javier Ellena
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Packing ◽  
Solvent Molecule ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Asymmetric Unit ◽  
Carbonyl Ligands ◽  
Distorted Octahedral ◽  
Phenanthroline Ligand ◽  
Solvent Molecules

The asymmetric unit of the title compound, [Re(C12H8N2)(C12H12N2)(CO)3]PF6.·CH3CN, contains one cation, one hexafluoridophosphate anion and one acetonitrile solvent molecule. The ReIion is coordinated by two N atoms from the 1,10-phenanthroline ligand and one N atom from the 1,2-bis(pyridin-4-yl)ethane ligand [mean Re—N = 2.191 (15) Å] and by three carbonyl ligands [mean Re—C = 1.926 (3) Å] in a distorted octahedral geometry. The electrostatic forces and weak C—H...F(O) hydrogen bonds pack cations and anions into the crystal with voids of 82 Å3, which are filled by solvent molecules. The crystal packing exhibits short intermolecular O...O distance of 2.795 (5) Å between two cations related by inversion.

The first three-dimensional FeIII–SrIIheterometallic coordination polymer: poly[[diaquatetrakis(μ3-pyridine-2,3-dicarboxylato)diiron(III)strontium(II)] dihydrate]

2015 ◽  
Vol 71 (10) ◽  
pp. 903-907 ◽  
Author(s):  
Yongfeng Yang ◽  
Tao Li ◽  
Yanmei Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Coordination Polymer ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Coordination Geometry ◽  
One Dimensional ◽  
Distorted Octahedral

The title compound, poly[[diaqua-1κ2O-tetrakis(μ3-pyridine-2,3-dicarboxylato)-2:1:2′κ10N,O2:O2′,O3:O3′;2:1:2′κ8O3:O3′:N,O2-diiron(III)strontium(II)] dihydrate], {[Fe2Sr(C7H3O4)4(H2O)2]·2H2O}n, which has triclinic (P\overline{1}) symmetry, was prepared by the reaction of pyridine-2,3-dicarboxylic acid, SrCl2·6H2O and Fe(OAc)2(OH) (OAc is acetate) in the presence of imidazole in water at 363 K. In the crystal structure, the pyridine-2,3-dicarboxylate (pydc2−) ligand exhibits μ3-η1,η1:η1:η1and μ3-η1,η1:η1,η1:η1coordination modes, bridging two FeIIIcations and one SrIIcation. The SrIIcation, which is located on an inversion centre, is eight-coordinated by six O atoms of four pydc2−ligands and two water molecules. The coordination geometry of the SrIIcation can be best described as distorted dodecahedral. The FeIIIcation is six-coordinated by O and N atoms of four pydc2−ligands in a slightly distorted octahedral geometry. Each FeIIIcation bridges two neighbouring FeIIIcations to form a one-dimensional [Fe2(pydc)4]nchain. The chains are connected by SrIIcations to form a three-dimensional framework. The topology type of this framework istfj. The structure displays O—H...O and C—H...O hydrogen bonding.

The coordination chemistry of two symmetric double-armed oxadiazole-bridged organic ligands with copper salts

2013 ◽  
Vol 69 (6) ◽  
pp. 601-605
Author(s):  
Xiang-Wen Wu ◽  
Meng-Meng Xin ◽  
Jian-Ping Ma ◽  
Zhen-Hua Wu ◽  
Yu-Bin Dong
Keyword(s):  
Octahedral Geometry ◽  
Organic Ligands ◽  
Distorted Octahedral Geometry ◽  
Asymmetric Unit ◽  
Compound I ◽  
Copper Salts ◽  
One Dimensional ◽  
Tetrahedral Environment ◽  
Counter Ions ◽  
Distorted Octahedral

Two new symmetric double-armed oxadiazole-bridged ligands, 4-methyl-{5-[5-methyl-2-(pyridin-3-ylcarbonyloxy)phenyl]-1,3,4-oxadiazol-2-yl}phenyl pyridine-3-carboxylate (L1) and 4-methyl-{5-[5-methyl-2-(pyridin-4-ylcarbonyloxy)phenyl]-1,3,4-oxadiazol-2-yl}phenyl pyridine-4-carboxylate (L2), were prepared by the reaction of 2,5-bis(2-hydroxy-5-methylphenyl)-1,3,4-oxadiazole with nicotinoyl chloride and isonicotinoyl chloride, respectively. LigandL1 can be used as an organic clip to bind CuIIcations and generate a molecular complex, bis(4-methyl-{5-[5-methyl-2-(pyridin-3-ylcarbonyloxy)phenyl]-1,3,4-oxadiazol-2-yl}phenyl pyridine-3-carboxylate)bis(perchlorato)copper(II), [Cu(ClO4)2(C28H20N4O5)2], (I). In compound (I), the CuIIcation is located on an inversion centre and is hexacoordinated in a distorted octahedral geometry, with the pyridine N atoms of twoL1 ligands in the equatorial positions and two weakly coordinating perchlorate counter-ions in the axial positions. The two arms of theL1 ligands bend inward and converge at the CuIIcoordination point to give rise to a spirometallocycle. LigandL2 binds CuIcations to generate a supramolecule, diacetonitriledi-μ3-iodido-di-μ2-iodido-bis(4-methyl-{5-[5-methyl-2-(pyridin-4-ylcarbonyloxy)phenyl]-1,3,4-oxadiazol-2-yl}phenyl pyridine-4-carboxylate)tetracopper(I), [Cu4I4(CH3CN)2(C28H20N4O5)2], (II). The asymmetric unit of (II) indicates that it contains two CuIatoms, oneL2 ligand, one acetonitrile ligand and two iodide ligands. Both of the CuIatoms are four-coordinated in an approximately tetrahedral environment. The molecule is centrosymmetric and the four I atoms and four CuIatoms form a rope-ladder-type [Cu4I4] unit. Discrete units are linked into one-dimensional chains through π–π interactions.

scholarly journals Coordination polymeric structures in the sodium salt of 4-chloro-3-nitrobenzoic acid and the sodium and potassium salts of 4-nitroanthranilic acid

2013 ◽  
Vol 69 (12) ◽  
pp. 1472-1477 ◽  
Author(s):  
Graham Smith
Keyword(s):  
Hydrogen Bonding ◽  
Water Molecule ◽  
Coordination Polyhedron ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Π Interactions ◽  
Nitrobenzoic Acid ◽  
Distorted Octahedral ◽  
Polymeric Structures

The structures of the hydrated sodium salts of 4-chloro-3-nitrobenzoic acid {poly[aqua(μ4-4-chloro-3-nitrobenzoato)sodium(I)], [Na(C7H3ClNO4)(H2O)]n, (I)} and 2-amino-4-nitrobenzoic acid {poly[μ-aqua-aqua(μ3-2-amino-4-nitrobenzoato)sodium(I)], [Na(C7H5N2O4)(H2O)2]n, (II)}, and the hydrated potassium salt of 2-amino-4-nitrobenzoic acid {poly[μ-aqua-aqua(μ5-2-amino-4-nitrobenzoato)potassium(I)], [K(C7H5N2O4)(H2O)]n, (III)} have been determined and their complex polymeric structures described. All three structures are stabilized by intra- and intermolecular hydrogen bonding and strong π–π ring interactions. In the structure of (I), the distorted trigonal bipyrimidal NaO5coordination polyhedron comprises a monodentate water molecule and four bridging carboxylate O-atom donors, generating a two-dimensional polymeric structure lying parallel to (001). Intra-layer hydrogen-bonding associations and strong inter-ring π–π interactions are present. Structure (II) has a distorted octahedral NaO6stereochemistry, with four bridging O-atom donors, two from a single carboxylate group and two from a single nitro group and three from the two water molecules, one of which is bridging. Na centres are linked through centrosymmetric four-membered duplex water bridges and through 18-membered duplex head-to-tail ligand bridges. Similar centrosymmetric bridges are found in the structure of (III), and in both (II) and (III) strong inter-ring π–π interactions are found. A two-dimensional layered structure lying parallel to (010) is generated in (II), whereas in (III) the structure is three-dimensional. With (III), the irregular KO7coordination polyhedron comprises a doubly bridging water molecule, a single bidentate bridging carboxylate O-atom donor and three bridging O-atom donors from the two nitro groups. A three-dimensional structure is generated. These coordination polymer structures are among the few examples of metal complexes of any type with either 4-chloro-3-nitrobenzoic acid or 4-nitroanthranilic acid.

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