Two luminescent d10 metal coordination polymers based on 3-nitro-5-(pyridin-3-yl)benzoic acid

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Long Tang ◽  
HuanHuan Wang ◽  
YuHao Fu ◽  
XiangYang Hou ◽  
Xiao Wang ◽  
...  
Keyword(s):  
Thermogravimetric Analysis ◽  
Benzoic Acid ◽  
Coordination Polymers ◽  
Layer Structure ◽  
Stacking Interactions ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
D10 Metal ◽  
Metal Coordination Polymers

AbstractTwo new coordination polymers (CPs), [Zn(npba)2] (1) and [Cd(npba)2] (2), have been hydrothermally synthesized from Zn(NO3)2·6H2O/Cd(NO3)2·6H2O and 3-nitro-5-(pyridin-3-yl) benzoic acid (Hnpba). The products have been characterized by IR spectroscopy, elemental analysis, thermogravimetric analysis, and single-crystal X-ray diffraction. In CP 1, the four-coordinated Zn(II) centers are bridged by npba ligands to generate chains, which are connected through arene π–π stacking interactions to generate a layer structure. In CP 2, the six-coordinated Cd(II) centers are also bridged by npba ligands to form chains with similar connectivity. The photoluminescence properties of CPs 1 and 2 were studied.

Synthesis, Crystal Structures and Fluorescence Properties of Two d10 Metal Coordination Polymers with Flexible Bis(benzimidazolyl)alkane Ligands

2013 ◽  
Vol 68 (3) ◽  
pp. 250-256 ◽  
Author(s):  
Jun-Wen Wang ◽  
Guang-Hua Cui ◽  
Li Qin ◽  
Shu-Lin Xiao
Keyword(s):  
Coordination Polymers ◽  
Room Temperature ◽  
Chain Structure ◽  
Fluorescence Properties ◽  
Metal Coordination ◽  
Supramolecular Network ◽  
X Ray Diffraction ◽  
X Ray ◽  
D10 Metal ◽  
Metal Coordination Polymers

Two d10 metal coordination polymers with bis-benzimidazole ligands, [(Ag(L1))·NO3·4H2O]n (1) and [Cu2(L2)(CN)2]n (2) [L1 =1,4-bis(benzimidazol-1-yl)butane, L2 =1,4-bis(5,6-dimethylbenzimidazol- 1-yl)butane] have been synthesized hydrothermally and characterized by elemental analysis, IR spectroscopy, thermogravimetric (TG) analysis and single-crystal X-ray diffraction. Compound 1 features a ribbon-like chain structure bridged by L1 ligands, and is ultimately extended into a 2D supramolecular network through two kinds of π-π stacking interactions. Compound 2 displays a (6,3) wave-like layer in which [Cu6(μ-CN)6(L2)2]n double chains are interconnected by pairs of L2 bridges. The fluorescence properties of the compounds in the solid state at room temperature were investigated.

scholarly journals Isomeric 4,2′:6′,4″- and 3,2′:6′,3″-Terpyridines with Isomeric 4′-Trifluoromethylphenyl Substituents: Effects on the Assembly of Coordination Polymers with [Cu(hfacac)2] (Hhfacac = Hexafluoropentane-2,4-dione)

Inorganics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 54
Author(s):  
Giacomo Manfroni ◽  
Simona S. Capomolla ◽  
Alessandro Prescimone ◽  
Edwin C. Constable ◽  
Catherine E. Housecroft
Keyword(s):  
Coordination Polymers ◽  
Metal Binding ◽  
Polymer Chains ◽  
Stacking Interactions ◽  
X Ray Diffraction ◽  
Preparative Scale ◽  
X Ray ◽  
Single Crystal Structures ◽  
Π Stacking ◽  
Packing Interactions

The isomers 4′-(4-(trifluoromethyl)phenyl)-4,2′:6′,4″-terpyridine (1), 4′-(3-(trifluoromethyl)phenyl)-4,2′:6′,4″-terpyridine (2), 4′-(4-(trifluoromethyl)phenyl)-3,2′:6′,3″-terpyridine (3), and 4′-(3-(trifluoromethyl)phenyl)-3,2′:6′,3″-terpyridine (4) have been prepared and characterized. The single crystal structures of 1 and 2 were determined. The 1D-polymers [Cu2(hfacac)4(1)2]n.2nC6H4Cl2 (Hhfacac = 1,1,1,5,5,5-hexafluoropentane-2,4-dione), [Cu(hfacac)2(2)]n.2nC6H5Me, [Cu2(hfacac)4(3)2]n.nC6H4Cl2, [Cu2(hfacac)4(3)2]n.nC6H5Cl, and [Cu(hfacac)2(4)]n.nC6H5Cl have been formed by reactions of 1, 2, 3 and 4 with [Cu(hfacac)2].H2O under conditions of crystal growth by layering and four of these coordination polymers have been formed on a preparative scale. [Cu2(hfacac)4(1)2]n.2nC6H4Cl2 and [Cu(hfacac)2(2)]n.2nC6H5Me are zig-zag chains and the different substitution position of the CF3 group in 1 and 2 does not affect this motif. Packing of the polymer chains is governed mainly by C–F...F–C contacts, and there are no inter-polymer π-stacking interactions. The conformation of the 3,2′:6′,3″-tpy unit in [Cu2(hfacac)4(3)2]n.nC6H4Cl2 and [Cu(hfacac)2(4)]n.nC6H5Cl differs, leading to different structural motifs in the 1D-polymer backbones. In [Cu(hfacac)2(4)]n.nC6H5Cl, the peripheral 3-CF3C6H4 unit is accommodated in a pocket between two {Cu(hfacac)2} units and engages in four C–Hphenyl...F–Chfacac contacts which lock the phenylpyridine unit in a near planar conformation. In [Cu2(hfacac)4(3)2]n.nC6H4Cl2 and [Cu(hfacac)2(4)]n.nC6H5Cl, π-stacking interactions between 4′-trifluoromethylphenyl-3,2′:6′,3″-tpy domains are key packing interactions, and this contrasts with the packing of polymers incorporating 1 and 2. We use powder X-ray diffraction to demonstrate that the assemblies of the coordination polymers are reproducible, and that a switch from a 4,2′:6′,4″- to 3,2′:6′,3″-tpy metal-binding unit is accompanied by a change from dominant C–F...F–C and C–F...H–C contacts to π-stacking of arene domains between ligands 3 or 4.

scholarly journals Coordination Assemblies of Zn(II) Coordination Polymers: Positional Isomeric Effect and Optical Properties

Crystals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 664 ◽  
Author(s):  
Chang-Jie Liu ◽  
Tong-Tong Zhang ◽  
Wei-Dong Li ◽  
Yuan-Yuan Wang ◽  
Shui-Sheng Chen
Keyword(s):  
Optical Properties ◽  
Infrared Spectroscopy ◽  
Thermogravimetric Analysis ◽  
Quantum Yield ◽  
Coordination Polymers ◽  
Square Lattice ◽  
X Ray Diffraction ◽  
X Ray ◽  
Mixed Ligands ◽  
Isomeric Effect

Two Zn(II) coordination polymers (CPs) [Zn(L)(pphda)] (1) and [Zn(L)(ophda)]·H2O (2) were prepared by reactions of ZnSO4·7H2O based on the N-donor 1,4-di(1H-imidazol-4-yl)benzene (L) ligand and two flexible carboxylic acids isomers of 1,4-phenylenediacetic acid (H2pphda) and 1,2-phenylenediacetic acid (H2ophda) as mixed ligands, respectively. Structures of CPs 1 and 2 were characterized by elemental analysis, Infrared spectroscopy (IR), thermogravimetric analysis and single-crystal X-ray diffraction. The CP 1 is a fourfold interpenetrating 66-diamond (dia) architecture, while 2 is a 2D (4, 4) square lattice (sql) layer based on the Zn2(cis-1,2-ophda2−)2 binuclear Zn(II) subunits. The luminescent property, including luminescence lifetime and quantum yield (QY), have been investigated for CPs 1 and 2.

scholarly journals Syntheses, Structures, and Characteristics of Three Metal Complexes Constructed Using Hexacarboxylic Acid

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4431 ◽  
Author(s):  
Lingshu Meng ◽  
Lun Zhao ◽  
Guanlin Guo ◽  
Xin Liu ◽  
Zhijun Liang ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Thermogravimetric Analysis ◽  
Coordination Polymers ◽  
Electrochemical Behavior ◽  
Room Temperature ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Hexadentate Ligand ◽  
Xrd Techniques

In this study, three new 3D coordination polymers (CPs), {[Cd3(L)(H2O)6]·H2O}n (1), {[Cu1.5(L)0.5(bimb)1.5]·5H2O·DMF}n (2), and {[Mn1.5(H3L)(bibp)0.5(H2O)2]·3H2O}n (3) (bimb= 1,3-bis(imidazol-1-yl)benzene, bibp= 1,4-bis((4-imidazol-1-yl)benzyl)piperazine), were prepared under solvothermal or hydrothermal conditions based on a hexadentate ligand (1,3,5-triazine-2,4,6-triamine hexa-acetic acid (H6L)). Structural elucidations were carried out by IR spectra along with single-crystal X-ray diffraction analysis, while thermogravimetric analysis (TGA) (dynamic and isothermal) and XRD techniques were used for property evaluations of the polymers. Furthermore, the fluorescence properties and detection of the Fe3+ ions in 1 were tested at room temperature, and the electrochemical behavior of 2 is also stated in this article.

scholarly journals Synthesis, Crystal Structure, and Properties of a Zn(II) Coordination Polymer Based on a Difunctional Ligand Containing Triazolyl and Carboxyl Groups

Crystals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 424 ◽  
Author(s):  
Jia-Le Li ◽  
Wei-Dong Li ◽  
Zi-Wei He ◽  
Shuai-Shuai Han ◽  
Shui-Sheng Chen
Keyword(s):  
Coordination Polymer ◽  
Weak Interactions ◽  
Layer Structure ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Structure And Properties ◽  
X Ray Diffraction ◽  
Visible Spectroscopy ◽  
X Ray ◽  
Uv Visible

A new compound, namely, [Zn(L)2]n (1) was obtained by the reaction of 2-methyl-4-(4H-1,2,4-triazol-4-yl) benzoic acid (HL) with ZnSO4·7H2O, and the compound was characterized by single-crystal X-ray diffraction, infrared spectroscopy, elemental analysis, powder X-ray diffraction (PXRD), and thermogravimetric analysis. The linear HL ligands were deprotonated to be L− anions and act as two-connectors to link Zn2+ to form a two-dimensional (2D) lay structure with (4, 4) topology. The large vacancy of 2D framework allows another layer structure to interpenetrate, resulting in the formation of 2D + 2D → 2D parallel interpenetration in 1. The weak interactions, such as hydrogen bonding and π–π stacking interactions, connect the adjacent 2D layers into a three-dimensional (3D) coordination polymer. The solid-state UV-visible spectroscopy and luminescent property have also been studied.

Assembly of Three Lanthanide Coordination Polymers from 2-(4-Carboxybenzyloxy) Benzoic Acid Ligand: Synthesis, Structure, and Fluorescent Properties

2020 ◽  
Vol 73 (1) ◽  
pp. 16
Author(s):  
Shu-Ju Wang ◽  
Yi-Hui Jiang ◽  
Han-Lin Wu ◽  
Li-Xin You ◽  
Gang Xiong ◽  
...  
Keyword(s):  
Benzoic Acid ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Lanthanide Ions ◽  
Solvothermal Reaction ◽  
X Ray Diffraction ◽  
Fluorescent Properties ◽  
Single Crystal Diffraction ◽  
X Ray ◽  
1D Chain

Three new coordination polymers, {[Ln(cbb)(Hcbb)(DMF)·H2O]n, Ln=Sm (1), Eu (2), Tb(3), H2cbb=2-(4-carboxybenzyloxy) benzoic acid, DMF=N,N-dimethylformamide}, have been synthesised by a solvothermal reaction and structurally characterised by infrared spectroscopy, elemental analysis, thermogravimetry analysis, and X-ray single-crystal diffraction. The results of single-crystal X-ray diffraction indicate that the coordination polymers 1–3 are isostructural, belong to a triclinic system, space group P-1, and show 1D chain structures through the H2cbb ligands connecting adjacent lanthanide ions. In addition, the fluorescence properties of polymers 1–3 were also investigated.

scholarly journals Novel Cd (II) Coordination Polymers Afforded with EDTA or Trans-1,2-Cdta Chelators and Imidazole, Adenine, or 9-(2-Hydroxyethyl) Adenine Coligands

Crystals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 391
Author(s):  
Jeannette Carolina Belmont-Sánchez ◽  
María Eugenia García-Rubiño ◽  
Antonio Frontera ◽  
Antonio Matilla-Hernández ◽  
Alfonso Castiñeiras ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Coordination Polymers ◽  
Density Functional ◽  
Molecular Electrostatic Potential ◽  
Aqua Ligand ◽  
Stacking Interactions ◽  
X Ray Diffraction ◽  
Functional Theory ◽  
X Ray ◽  
Mixed Ligands

Three mixed-ligands of Cd(II) coordination polymers were unintentionally obtained: {[Cd(µ3-EDTA)(Him)·Cd(Him)(H2O)2]·H2O}n (1), {[Cd(µ4-CDTA)(Hade)·Cd(Hade)2]}n (2), and {[Cd(µ3-EDTA)(H2O)·Cd(H9heade)(H2O)]·2H2O}n (3), having imidazole (Him), adenine (Hade) or 9-(2-hydroxyethyl)adenine (9heade) as the N-heterocyclic coligands. Compounds 2 and 3 were obtained by working with an excess of corresponding N-heterocyclic coligands. The single-crystal X-ray diffraction structures and thermogravimetric analyses are reported. The chelate moieties in all three compounds exhibit hepta-coordinated Cd centers, whereas the non-chelated Cd center is five-coordinated in 1 and six-coordinated in 2 and 3. Him and Hade take part in the seven-coordinated chelate moieties in 1 and 2, respectively. In contrast, 9heade is unable to replace the aqua ligand of the chelate [Cd (EDTA) (H2O)] moiety in 3. The thermogravimetric analysis (TGA) behavior of [Cd (H2EDTA) (H2O)]·2H2O in 1 and 3 leads to a residue of CdO, whereas the N-rich compound 2 yields CdO·Cd(NO3)2 as a residue. Density functional theory (DFT) calculations along with molecular electrostatic potential (MEP) and quantum theory of atoms-in-molecules computations were performed in adenine (compound 2) and (2-hydroxyethyl)adenine (compound 3) to analyze how the strength of the H-bonding and π-stacking interactions, respectively, are affected by their coordination to the Cd-metal center.

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.

Syntheses, Structures, Thermal and Photoluminescence Properties of Two Zn(II) and Cd(II) Coordination Polymers Constructed from Taurine-derived Schiff Base and 4,4’-Bipyridine Ligands

2012 ◽  
Vol 67 (8) ◽  
pp. 774-782 ◽  
Author(s):  
Wei-Ting Guo ◽  
Zhi-Min Miao ◽  
Yun-Long Wang
Keyword(s):  
Schiff Base ◽  
Coordination Polymers ◽  
Tridentate Ligand ◽  
Supramolecular Architecture ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
Monodentate Ligand ◽  
Metal Centers ◽  
X Ray ◽  
Ethanesulfonic Acid

Two chain-like coordination polymers, namely, {[Zn(saes)(4,4'-bipy)(H2O)]·H2O}n (1) and {[Cd (Hsaes)2(4,4'-bipy)(H2O)2]·2H2O}n (2), where H2saes=2-(2-hydroxybenzylideneamino)ethanesulfonic acid and 4,4'-bipy=4,4'-bipyridine, have been synthesized and characterized by singlecrystal X-ray diffraction, IR spectroscopy, elemental, thermogravimetric and photoluminescence analysis. X-Ray diffraction analyses indicate that 1and 2display octahedral metal centers with N3O3 and N2O4 donor sets, respectively. The Schiff base serves as a common N,O'-tridentate ligand in 1, and as a unique O-monodentate ligand in 2. In the crystal, both 1and 2form a 3D supramolecular architecture by O-H···O, C-H···O interactions or π···π stacking. The thermal and solid-state photoluminescence properties of both complexes have been investigated

Three Coordination Polymers Built by Methoxyphenyl Imidazole Dicarboxylate: Solvothermal Syntheses, Crystal Structures, and Properties

2015 ◽  
Vol 68 (6) ◽  
pp. 956 ◽  
Author(s):  
Ming-An Dang ◽  
Zi-Feng Li ◽  
Ying Liu ◽  
Gang Li
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
Bridging Ligands ◽  
X Ray ◽  
Structures And Properties ◽  
Solvothermal Syntheses ◽  
Lattice Polymer ◽  
Imidazole Dicarboxylate

Three coordination polymers [Sr(p-H2MOPhIDC)2]n (1) (p-H3MOPhIDC = 2-p-methoxyphenyl-1H-imidazole-4,5-dicarboxylic acid), {[Cd2(p-HMOPhIDC)2(4,4′-bipy)]⋅H2O}n (4,4′-bipy = 4,4′-bipyridine) (2), and [Zn(p-HMOPhIDC)(4,4′-bipy)]n (3) have been solvothermally synthesized, and structurally characterized by single-crystal X-ray diffraction. Polymer 1 indicates a three-dimensional framework, which can be simplified as a 6-connected lattice. Polymer 2 is also a three-dimensional framework, and contains mixed bridging ligands HMOPhIDC2– and 4,4′-bipy. Polymer 3 exhibits a sheet structure bearing infinite rectangles. The coordination modes of the p-H3MOPhIDC ligand, and the thermal and solid-state photoluminescence properties of the polymers have been investigated as well.

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