Structural diversity, magnetic properties and luminescence of NiII, CoII and ZnII coordination polymers derived from 3,3′-[(5-carboxy-1,3-phenylene)bis(oxy)]dibenzoic acid and 1,10-phenanthroline

2019 ◽  
Vol 75 (12) ◽  
pp. 1580-1592 ◽  
Author(s):  
Dong-Dong Yang ◽  
Li-Ping Lu ◽  
Miao-Li Zhu
Keyword(s):  
Coordination Polymers ◽  
Structural Diversity ◽  
Complex Iii ◽  
Water Molecules ◽  
X Ray Diffraction ◽  
Carboxylate Groups ◽  
Distorted Octahedral ◽  
Secondary Building Units ◽  
Ft Ir ◽  
Ferromagnetic Interactions

Three novel coordination polymers (CPs), namely poly[[di-μ-aqua-bis{μ4-3,3′-[(5-carboxylato-1,3-phenylene)bis(oxy)]dibenzoato-κ5 O 1:O 1′,O 3:O 5:O 5′}bis(1,10-phenanthroline-κ2 N,N′)trinickel(II)] dimethylformamide 1.5-solvate trihydrate], {[Ni3(C21H11O8)2(C12H8N2)2(H2O)2]·1.5C3H7NO·3H2O} n , (I), poly[[di-μ-aqua-bis{μ4-3,3′-[(5-carboxylato-1,3-phenylene)bis(oxy)]dibenzoato-κ5 O 1:O 1′,O 3:O 5:O 5′}bis(1,10-phenanthroline-κ2 N,N′)tricobalt(II)] diethylamine disolvate tetrahydrate], {[Co3(C21H11O8)2(C12H8N2)2(H2O)2]·2C2H7N·4H2O} n , (II), and catena-poly[[aqua(1,10-phenanthroline-κ2 N,N′)zinc(II)]-μ-5-(3-carboxyphenoxy)-3,3′-oxydibenzoato-κ2 O 1:O 3], [Zn(C21H12O8)(C12H8N2)(H2O)] n , (III), have been synthesized by the reaction of different metal ions (Ni2+, Co2+ and Zn2+), 3,3′-[(5-carboxy-1,3-phenylbis(oxy)]dibenzoic acid (H3cpboda) and 1,10-phenanthroline (phen) under solvothermal conditions. All the CPs were characterized by elemental analysis, single-crystal and powder X-ray diffraction, FT–IR spectroscopy and thermogravimetric analysis. Complexes (I) and (II) have isomorphous structures, featuring similar linear trinuclear structural units, in which the central NiII/CoII atom is located on an inversion centre with a slightly distorted octahedral [NiO6]/[CoO6] geometry. This comprises four carboxylate O-atom donors from two cpboda3− ligands and two O-atom donors from bridging water molecules. The terminal NiII/CoII groups are each connected to the central NiII/CoII cation through two μ1,3-carboxylate groups from two cpboda3− ligands and one water bridge, giving rise to linear trinuclear [M 3(μ2-H2O)2(RCOO)4] (M = Ni2+/Co2+) secondary building units (SBUs) and the SBUs develop two-dimensional-networks parallel to the (100) plane via cpboda3− ligands with new (32·4)2(32·83·9)2(34·42.82·94·103) topological structures. Zinc complex (III) displays one-dimensional coordination chains and the five-coordinated Zn atom forms a distorted square-pyramidal [ZnO3N2] geometry, which is completed by two carboxylate O-atom donors from two distinct Hcpboda2− ligands, one O atom from H2O and two N atoms from a chelating phen ligand. Magnetically, CP (I) shows weak ferromagnetic interactions involving the carboxylate groups, and bridging water molecules between the nickel(II) ions, and CP (II) shows antiferromagnetic interactions between the Co2+ ions. The solid-state luminescence properties of CP (III) were examined at ambient temperature and the luminescence sensing of Cr2O7 2−/CrO4 2− anions in aqueous solution for (III) has also been investigated.

scholarly journals Multidimensional Ln-Aminophthalate Photoluminescent Coordination Polymers

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1786
Author(s):  
Carla Queirós ◽  
Chen Sun ◽  
Ana M. G. Silva ◽  
Baltazar de Castro ◽  
Juan Cabanillas-Gonzalez ◽  
...  
Keyword(s):  
Water Content ◽  
Coordination Polymers ◽  
Metal Ion ◽  
Low Cost ◽  
Microwave Assisted Synthesis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Wide Range ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

The development of straightforward reproducible methods for the preparation of new photoluminescent coordination polymers (CPs) is an important goal in luminescence and chemical sensing fields. Isophthalic acid derivatives have been reported for a wide range of applications, and in addition to their relatively low cost, have encouraged its use in the preparation of novel lanthanide-based coordination polymers (LnCPs). Considering that the photoluminescent properties of these CPs are highly dependent on the existence of water molecules in the crystal structure, our research efforts are now focused on the preparation of CP with the lowest water content possible, while considering a green chemistry approach. One- and two-dimensional (1D and 2D) LnCPs were prepared from 5-aminoisophthalic acid and Sm3+/Tb3+ using hydrothermal and/or microwave-assisted synthesis. The unprecedented LnCPs were characterized by single-crystal X-ray diffraction (SCRXD), powder X-ray diffraction (PXRD), Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM), and their photoluminescence (PL) properties were studied in the solid state, at room temperature, using the CPs as powders and encapsulated in poly(methyl methacrylate (PMMA) films, envisaging the potential preparation of devices for sensing. The materials revealed interesting PL properties that depend on the dimensionality, metal ion, co-ligand used and water content.

scholarly journals Crystal structures of {[Cu(Lpn)2][Fe(CN)5(NO)]·H2O}nand {[Cu(Lpn)2]3[Cr(CN)6]2·5H2O}n[where Lpn = (R)-propane-1,2-diamine]: two heterometallic chiral cyanide-bridged coordination polymers

2015 ◽  
Vol 71 (4) ◽  
pp. 392-397
Author(s):  
Olha Sereda ◽  
Helen Stoeckli-Evans
Keyword(s):  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Water Molecules ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Compound I ◽  
Distorted Octahedral ◽  
Coordination Spheres ◽  
Compound Ii

The title compounds,catena-poly[[[bis[(R)-propane-1,2-diamine-κ2N,N′]copper(II)]-μ-cyanido-κ2N:C-[tris(cyanido-κC)(nitroso-κN)iron(III)]-μ-cyanido-κ2C:N] monohydrate], {[Cu(Lpn)2][Fe(CN)5(NO)]·H2O}n, (I), and poly[[hexa-μ-cyanido-κ12C:N-hexacyanido-κ6C-hexakis[(R)-propane-1,2-diamine-κ2N,N′]dichromium(III)tricopper(II)] pentahydrate], {[Cu(Lpn)2]3[Cr(CN)6]2·5H2O}n, (II) [where Lpn = (R)-propane-1,2-diamine, C3H10N2], are new chiral cyanide-bridged bimetallic coordination polymers. The asymmetric unit of compound (I) is composed of two independent cation–anion units of {[Cu(Lpn)2][Fe(CN)5)(NO)]} and two water molecules. The FeIIIatoms have distorted octahedral geometries, while the CuIIatoms can be considered to be pentacoordinate. In the crystal, however, the units align to form zigzag cyanide-bridged chains propagating along [101]. Hence, the CuIIatoms have distorted octahedral coordination spheres with extremely long semicoordination Cu—N(cyanido) bridging bonds. The chains are linked by O—H...N and N—H...N hydrogen bonds, forming two-dimensional networks parallel to (010), and the networks are linkedviaN—H...O and N—H...N hydrogen bonds, forming a three-dimensional framework. Compound (II) is a two-dimensional cyanide-bridged coordination polymer. The asymmetric unit is composed of two chiral {[Cu(Lpn)2][Cr(CN)6]}−anions bridged by a chiral [Cu(Lpn)2]2+cation and five water molecules of crystallization. Both the CrIIIatoms and the central CuIIatom have distorted octahedral geometries. The coordination spheres of the outer CuIIatoms of the asymmetric unit can be considered to be pentacoordinate. In the crystal, these units are bridged by long semicoordination Cu—N(cyanide) bridging bonds forming a two-dimensional network, hence these CuIIatoms now have distorted octahedral geometries. The networks, which lie parallel to (10-1), are linkedviaO—H...O, O—H...N, N—H...O and N—H...N hydrogen bonds involving all five non-coordinating water molecules, the cyanide N atoms and the NH2groups of the Lpn ligands, forming a three-dimensional framework.

New Method of Preparation and Property Study of the Montmorillonite Modified with CTAB

2011 ◽  
Vol 284-286 ◽  
pp. 377-381
Author(s):  
Ji Chu Zhang ◽  
Ze Peng Zhang ◽  
Bo Hu ◽  
Gang Liu
Keyword(s):  
Contact Angle ◽  
Ammonium Bromide ◽  
Water Molecules ◽  
X Ray Diffraction ◽  
Hydrophobic Property ◽  
X Ray ◽  
Structure And Property ◽  
Organic Components ◽  
Ft Ir ◽  
Better Than

In this paper, Ca2+-montmorillonite (Ca2+-Mt) was modified with cationic surfactant hexadecyl trimethyl ammonium Bromide (CTAB) directly, without changing Ca2+-Mt into Na+-montmorillonite (Na+-Mt). X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), contact angle tests and rotary viscosity tests were used to characterize the structure and property of the organo-montmorillonite. The results of XRD show that interlayer space (d001) of the product is 4.05nm. The results of TGA indicate the ratio of weight loss of the organic components in the product is 37.7%. The results of FT-IR indicate there are organic components and hardly any water molecules in the product. All these findings indicate that the CTAB has intercalated into the galleries of Ca2+-Mt. Contact angle tests shows the product is well hydrophobic and the hydrophobic property is as good as that of organo-montmorillonite modified from Na+-Mt. Rotary viscosity tests show that the viscosity of the product at the rotational speed of 6R/min is 1226mPa·s, much better than that of the organo- montmorillonite modified from Na+-Mt which is 1070 mPa·s. The thixotropy index of the product is 9.22, much better than that of the organo-montmorillonite modified from Na+-Mt which is 5.88. It can be concluded that organo-montmorillonite with perfect interlayer expansion and thixotropic property was prepared by modifying Ca2+-Mt with CTAB directly.

A new twofold interpenetrated two-dimensional cadmium(II) coordination polymer constructed from 2,2′-(benzene-1,4-dicarboxamido)dipropionate

2018 ◽  
Vol 74 (11) ◽  
pp. 1434-1439
Author(s):  
Hong-Tao Zhang ◽  
Xiao-Long Wang
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Fluorescence Emission ◽  
Functional Materials ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carboxylate Groups ◽  
Potential Applications

In recent years, much initial interest and enthusiasm has focused on the self-assembly of coordination polymers due to the aesthetics of their crystalline architectures and their potential applications as new functional materials. As part of an exploration of chiral coordination polymers, a new twofold interpenetrated two-dimensional (2D) coordination polymer, namely, poly[[tetraaquabis[μ3-(2R,2′R)-2,2′-(benzene-1,4-dicarboxamido)dipropionato-κ5 O,O′:O′′,O′′′:O′′]dicadmium(II)] trihydrate], {[Cd2(C14H14N2O6)2(H2O)4]·3H2O} n , has been synthesized by the reaction of Cd(CH3COO)2·2H2O with the designed ligand (2R,2′R)-2,2′-(benzene-1,4-dicarboxamido)dipropionic acid (H2 L). The compound has been structurally characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction and single-crystal X-ray diffraction analysis. In the crystal structure, each CdII cation binds to three carboxylate groups from two crystallographically independent L 2− dianions. Four carboxylate groups link two crystallographically independent cadmium cations into a 4,4-connected secondary building unit (SBU). The resulting SBUs are extended into a two-dimensional folding sheet via the terephthalamide moiety of the ligand as a spacer, which can be simplified as a (4,4)-connected 4,4L15 net with the point symbol (3.53.62)(32.52.62). In the lattice, two independent folding sheets interpenetrate each other to yield a double-sheet layer. The resulting 2D layers pack in parallel arrays through intermolecular hydrogen bonds and interlayer π–π interactions. The thermal stability and photoluminescence properties of the title compound have been investigated and it exhibits an enhanced fluorescence emission and a longer lifetime compared with free H2 L.

scholarly journals Structural, Non-Covalent Interaction, and Natural Bond Orbital Studies on Bromido-Tricarbonyl Rhenium(I) Complexes Bearing Alkyl-Substituted 1,4-Diazabutadiene (DAB) Ligands

Crystals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 267 ◽  
Author(s):  
Reza Kia ◽  
Azadeh Kalaghchi
Keyword(s):  
Density Functional ◽  
Natural Bond Orbital ◽  
Carbonyl Groups ◽  
X Ray Diffraction ◽  
Functional Theory ◽  
Covalent Interaction ◽  
Distorted Octahedral ◽  
Elemental Analyses ◽  
Ft Ir ◽  
Solid State Structures

The synthesis, characterization, structural and computational studies of Re(I) tricarbonyl bromo complexes bearing alkyl-substituted 1,4-diazabutadiene ligands, [Re(CO)3(1,4-DAB)Br], where 1,4-DAB = N,N-bis(2,4-dimethylbenzene)-1,4-diazabutadiene, 2,4-Me2DAB (1); N,N-bis(2,4-dimethylbenzene)-2,3-dimethyl-1,4-diazabutadiene, 2,4-Me2DABMe (2); N,N-bis(2,4,6-trimethylbenzene)-1,4-diazabutadiene, 2,4,6-Me3DAB (3); and N,N-bis(2,6-diisopropylbenzene)-1,4-diazabutadiene, 2,6-ipr2DAB (4) are reported. The complexes were characterized by different spectroscopic methods such as FT-IR, 1H-NMR, 13C-NMR, and elemental analyses and their solid-state structures were confirmed by X-ray diffraction. In each complex, the Re(I) centre shows a distorted octahedral shape with a facial geometry of carbonyl groups. The gas phase geometry of the complexes was identified by density functional theory. Interesting intermolecular n…π* interactions of complexes 1 and 3 were investigated by non-covalent interaction index (NCI), and natural bond orbital (NBO) analyses. The intramolecular n…σ*, σ…π*, π…σ* interactions were also studied in complexes 3 and 4.

Structures and Photoluminescence Properties of Four Cadmium(II) Coordination Polymers Synthesized by Rigid Ligands and N-Donor Ligands

2015 ◽  
Vol 68 (5) ◽  
pp. 742 ◽  
Author(s):  
Qing-Guo Meng ◽  
Lin-Tong Wang ◽  
Ji-Tao Lu ◽  
Xin Wang ◽  
Wei Lu ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
Photoluminescence Properties ◽  
Thermal Stabilities ◽  
Structure Comparison ◽  
Layer Compound ◽  
Carboxylate Groups ◽  
Secondary Building Units ◽  
Coordinated Water ◽  
Dna 2

Four metal–organic coordination polymers, [Cd2(dna)2(2,2′-bpy)2]n (1), {[Cd4(dna)4(im)3]·5H2O}n (2), {[Cd2(dna)2(4,4′-bpy)(H2O)2]·2EtOH}n (3), and {[Cd4(dna)4(1,3-dpp)4(H2O)4]·2H2O}n (4) (H2dna = 4,6-dimethyl-5-nitroisophthalic acid; 2,2′-bpy = 2,2′-bipyridine; im = imidazole; 4,4′-bpy = 4,4′-bipyridine; 1,3-dpp = 1,3-di(4-pyridyl)propane; and EtOH = ethanol, have been solvothermally synthesized and characterized. Compound 1 displays a one-dimensional (1D) ladder structure and the neighbouring ladders are further stabilized by π···π interactions to form a two-dimensional (2D) layer. Compound 2 forms a 2D layer based on infinite 1D [Cd2(COO)4]n chain and the im ligands act as terminal ligands, preventing expansion of the dimensionality. Compound 3 features a 2D 44-sql layer based on binuclear [Cd2(COO)4] secondary building units as 4-connected nodes, and is further linked to be an unusual three-dimensional (3D) supramolecular architecture by hydrogen bonds involving the coordinated water molecules, carboxylate groups, and lattice ethanol molecules. Compound 4 possesses a 2-fold interpenetrated dia net. The diverse structures and topologies of compounds 1–4 indicate that the N-containing ligands have significant effects on the formation of the final network structures. In addition, the thermal stabilities, structure comparison, and photoluminescence properties of the complexes have been investigated.

Reaction of 2-[(2-aminoethyl)amino]ethanol with pyridine-2-carbaldehyde and complexation of the products with CuII and CdII along with docking studies

2019 ◽  
Vol 75 (7) ◽  
pp. 951-959 ◽  
Author(s):  
Zahra Mardani ◽  
Mohammad Hakimi ◽  
Keyvan Moeini ◽  
Fabian Mohr
Keyword(s):  
Crystal Packing ◽  
Docking Studies ◽  
Molar Ratio ◽  
Distorted Octahedral Geometry ◽  
X Ray Diffraction ◽  
Donor Ligand ◽  
X Ray ◽  
H Nmr ◽  
Distorted Octahedral ◽  
Ft Ir

The reaction between 2-[2-(aminoethyl)amino]ethanol and pyridine-2-carbaldehyde in a 1:2 molar ratio affords a mixture containing 2-({2-[(pyridin-2-ylmethylidene)amino]ethyl}amino)ethanol (PMAE) and 2-[2-(pyridin-2-yl)oxazolidin-3-yl]-N-(pyridin-2-ylmethylidene)ethanamine (POPME). Treatment of this mixture with copper(II) chloride or cadmium(II) chloride gave trichlorido[(2-hydroxyethyl)({2-[(pyridin-2-ylmethylidene)amino]ethyl})azanium]copper(II) monohydrate, [Cu(C10H16N3O)Cl3]·H2O or [Cu(HPMAE)Cl3]·H2O, 1, and dichlorido{2-[2-(pyridin-2-yl)oxazolidin-3-yl]-N-(pyridin-2-ylmethylidene)ethanamine}cadmium(II), [CdCl2(C16H18N4O)] or [CdCl2(POPME)], 2, which were characterized by elemental analysis, FT–IR, Raman and 1H NMR spectroscopy and single-crystal X-ray diffraction. PMAE is potentially a tetradentate N3O-donor ligand but coordinates to copper here as an N2 donor. In the structure of 1, the geometry around the Cu atom is distorted square pyramidal. In 2, the Cd atom has a distorted octahedral geometry. In addition to the hydrogen bonds, there are π–π stacking interactions between the pyridine rings in the crystal packing of 1 and 2. The ability of PMAE, POPME and 1 to interact with ten selected biomolecules (BRAF kinase, CatB, DNA gyrase, HDAC7, rHA, RNR, TrxR, TS, Top II and B-DNA) was investigated by docking studies and compared with doxorubicin.

The Syntheses and Structures of Two New Zn(II) Complexes Based on 3-Nitrobenzoato Ligand

2013 ◽  
Vol 807-809 ◽  
pp. 2671-2674
Author(s):  
Ying Bing Lu ◽  
Fang Mei Jian ◽  
Shuang Jin
Keyword(s):  
Single Crystal ◽  
Coordination Polymers ◽  
Stacking Interactions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Face To Face ◽  
Π Interactions ◽  
Carboxylate Groups ◽  
Supramolecular Chain ◽  
Supramolecular Layer

Two new Zn (II) coordination polymers with 3-nitrobenzoato ligands have been prepared, and their structures have been characterized by single-crystal X-ray diffraction techniques. The structure of [Zn (3-nbz)2(μ-4,4'-bpy)]n(1) (3-nbz = 3-nitrobenzoato, 4,4'-bpy = 4,4'-bipyridine) shows 1-D chains originating from terminal 3-nbz ligands andμ-4,4'-bpy molecules. The chains are further connected through face-to-face π stacking interactions to genenate a 2-D supramolecular layer. In Zn (3-nbz)2(2,2'-bpy) (2) (2,2'-bpy = 2,2'-bipyridine), carboxylate groups exhibit chelated bidentate to give discrete mononuclear units, which are linked by face-to-face π-π and C-H···π interactions to produce a 1-D supramolecular chain.

A one-dimensional coordination polymer with a three-dimensional supramolecular framework:catena-poly[[[(3,4,7,8-tetramethyl-1,10-phenanthroline)cadmium(II)]-μ3-4,4′-sulfonyldibenzoato] trihydrate]

2013 ◽  
Vol 69 (3) ◽  
pp. 241-243 ◽  
Author(s):  
Jun Wang ◽  
Jian-Qing Tao ◽  
Xiao-Juan Xu ◽  
Chun-Yun Tan
Keyword(s):  
Three Dimensional ◽  
Water Molecules ◽  
X Ray Diffraction ◽  
Polymeric Compound ◽  
Chain Polymer ◽  
One Dimensional ◽  
X Ray ◽  
Carboxylate Groups ◽  
Metal Organic ◽  
Coordination Patterns

In the title mixed-ligand metal–organic polymeric compound, {[Cd(C14H8O6S)(C16H16N2)]·3H2O}n, the asymmetric unit contains a crystallographically unique CdIIatom, one doubly deprotonated 4,4′-sulfonyldibenzoic acid (H2SDBA) ligand, one 3,4,7,8-tetramethyl-1,10-phenanthroline (TMPHEN) molecule and three solvent water molecules. Each CdIIcentre is six-coordinated by two O atoms from a chelating carboxylate group of a SDBA2−ligand, two O atoms from monodentate carboxylate groups of two different SDBA2−ligands and two N atoms from a chelating TMPHEN ligand. There are two coordination patterns for the carboxylate groups of the SDBA2−ligand, with one in a μ1-η1:η1chelating mode and the other in a μ2-η1:η1bis-monodentate mode. Single-crystal X-ray diffraction analysis revealed that the title compound is a one-dimensional double-chain polymer containing 28-membered rings based on the [Cd2(CO2)2] rhomboid subunit. More interestingly, a chair-shaped water hexamer cluster is observed in the compound.

scholarly journals Coordination polymers of benzenediseleninate, the seleno analog of terephthalate

2014 ◽  
Vol 70 (a1) ◽  
pp. C1235-C1235
Author(s):  
Robert Burrow ◽  
Giancarlo Belmonte
Keyword(s):  
Coordination Polymers ◽  
Water Molecules ◽  
Gravimetric Analysis ◽  
The Novel ◽  
X Ray Diffraction ◽  
Reaction Conditions ◽  
Subsequent Formation ◽  
Metal Centers ◽  
Infrared Spectral

The proligand para-benzenediseleninic acid, (HO2SeC6H4SeO2H) (Figure), is the seleno analog to the commonly used MOF spacer proligand, terephthalic acid. Novel coordination polymers based on this proligand, and Mn(II), Fe(II), Co(II), Ni(II), Cu(II) or Zn(II) metal centers containing auxiliary water molecules, [M(O2SeC6H4SeO2)2(H2O)n], were synthesized. Depending on the reaction conditions, different pure or mixed phases can be produced. Crystal to crystal transformations of the novel coordination polymers were studied with powder X ray diffraction, infrared spectral analysis and thermal gravimetric analysis. These coordination polymers can be dehydrated with subsequent formation of new anhydrous coordination polymer phases. Some of these phases can be rehydrated to lead back to the crystalline starting materials or to new crystalline hydrated phases. We are working on the complete structural characterization of the phases.

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