A luminescent Zn(II)-based coordination polymer constructed by 5-((4-carboxyphenoxy)methyl)benzene-1,3-dioic acid and 4,4′-bipyridine for selective sensing of Fe 3+

Polyhedron ◽  
2017 ◽  
Vol 134 ◽  
pp. 330-335 ◽  
Author(s):  
Yuan-Chun He ◽  
Na Xu ◽  
Fang-Hua Zhao ◽  
Wei-Qiu Kan ◽  
Yan Wang ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Dioic Acid ◽  
Methyl Benzene

scholarly journals A new Pb(II)-based coordination polymer constructed from a semirigid tricarboxylate ligand: crystal structure and anti-lung cancer activity

2019 ◽  
Vol 42 (1) ◽  
pp. 8-12
Author(s):  
Kun-Ning Yang ◽  
Ke-De Yuan ◽  
Li-Li Jiang ◽  
Yong Zhang
Keyword(s):  
Lung Cancer ◽  
Coordination Polymer ◽  
Ultrasonic Method ◽  
Three Dimensional ◽  
Human Lung Cancer ◽  
X Ray Diffraction ◽  
Dioic Acid ◽  
X Ray ◽  
The One ◽  
Solvothermal Conditions

Abstract Based on a semirigid tricarboxylate ligand 5-((4-carboxyphenoxy)methyl)benzene-1,3-dioic acid (H3L), a new Pb(II)-based coordination polymer formulated as [Pb(HL)(H2O)](H2O) (1) was synthesized under solvothermal conditions and characterized by single-crystal X-ray structural analysis, power X-ray diffraction, and elemental analysis. Compound 1 is a two-dimensional layered structure formed by the connection of the one-dimensional Pb(II)-based secondary building unit chains with the partly deprotonated HL ligands, which are further extended into three-dimensional supermolecular structures through the H-bonds. Furthermore, the size of the as-prepared 1 could be downsized into the nano region through a simple ultrasonic method. Finally, the antilung cancer activities of 1 and the nanosized 1 have been probed via the MTT assay against three human lung cancer cell lines (A549, H1299, and PC9).

scholarly journals Poly[(μ2-benzene-1,3-dicarboxylato-κ2 O 1:O 3){μ2-1,2-bis[(1H-imidazol-1-yl)methyl]benzene-κ2 N 3:N 3′}zinc]

2012 ◽  
Vol 68 (6) ◽  
pp. m826-m826
Author(s):  
Hong Chen ◽  
Heng Xu
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Layer Structure ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Neutral Ligand ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Methyl Benzene

In the two-dimensional title coordination polymer, [Zn(C8H4O4)(C14H14N4)] n , the ZnII atom adopts a distorted tetrahedral geometry, being ligated by two O atoms from two different benzene-1,3-dicarboxylate dianions and two N atoms from two symmetry-related 1,2-bis(imidazol-1-ylmethyl)benzene molecules. The dihedral angles between the imidazole rings and the benzene ring in the neutral ligand are 76.31 (13) and 85.33 (15)°. The ZnII atoms are bridged by dicarboxylate ligands, forming chains parallel to the a axis, which are further linked by 1,2-bis(imidazol-1-ylmethyl)benzene molecules, generating a two-dimensional layer structure parallel to the ac plane. The crystal structure is enforced by intralayer and interlayer C—H...O hydrogen bonds.

A one-dimensional ZnIIcoordination polymer: poly[dichlorido(μ2-1,4-phenylenediacetato-κ2O:O′)bis{μ2-1,3-bis[(1H-1,2,4-triazol-1-yl)methyl]benzene-κ2N3:N3′}dizinc(II)]

2014 ◽  
Vol 70 (11) ◽  
pp. 1033-1035 ◽  
Author(s):  
Xiao-Juan Xu
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Asymmetric Unit ◽  
One Dimensional ◽  
Π Interactions ◽  
Acid Ligand ◽  
Title One ◽  
Methyl Benzene

In the title one-dimensional ZnIIcoordination polymer, [Zn(C10H8O4)0.5Cl(C12H12N6)]n, the asymmetric unit consists of a ZnIIcation, a 1,3-bis[(1H-1,2,4-triazol-1-yl)methyl]benzene ligand and half of a fully deprotonated centrosymmetric 1,4-phenylenediacetic acid ligand. The crystal structure shows a one-dimensional rotaxane-like structure. This coordination polymer is reinforced by C—H...O and C—H...Cl hydrogen bonds and π–π interactions.

A cadmium(II) coordination polymer formed from a third generation tetratopic tris(pyrazolyl)methane ligand

2016 ◽  
Vol 72 (11) ◽  
pp. 832-837 ◽  
Author(s):  
Radu F. Semeniuc ◽  
Daniel L. Reger ◽  
Mark D. Smith
Keyword(s):  
Coordination Polymer ◽  
Diethyl Ether ◽  
Dimensional Structure ◽  
Third Generation ◽  
Acetonitrile Molecule ◽  
One Dimensional ◽  
Coordination Site ◽  
Methyl Benzene ◽  
Bonding Mode

The reaction of a third generation tetratopic tris(pyrazolyl)methane ligand, namely 1,2,4,5-{[2,2,2-tris(1H-pyrazol-1-yl)ethoxy]methyl}benzene {1,2,4,5-C6H2[CH2OCH2C(pz)3]4,L4}, and [Cd2(thf)5](BF4)4(thf is tetrahydrofuran) produces the coordination polymercatena-poly[[[bis[acetonitrilecadmium(II)]-μ4-1,2,4,5-{[2,2,2-tris(1H-pyrazol-1-yl)ethoxy]methyl}benzene] tetrakis(tetrafluoroborate)]–diethyl ether–acetonitrile (1/2/2)], {[Cd2(CH3CN)2(C54H54N24O4)](BF4)4·2C4H10O·2CH3CN}n. The CdIIcenter is coordinated in a κ3-fashion by one tris(pyrazolyl)methane group and in a κ2–κ0fashion by another, while the sixth coordination site on the CdIIcation is occupied by an acetonitrile molecule. This bonding mode of the ligand generates an infinite one-dimensional structure built upon 32-atom metallomacrocycles connected by the C6H2spacer. This compound is isostructural with the silver(I) analogue of this ligand,i.e.{[Ag2(L4)](BF4)2·4CH3CN}n, thus showing the tendency of this system to form metal-based macrocyclic architectures.

A one-dimensional coordination polymer based on a di-Schiff base supported trinuclear CuIIsubunit

2012 ◽  
Vol 68 (4) ◽  
pp. m97-m99
Author(s):  
Liangliang Zhang ◽  
Fuling Liu ◽  
Shuai Yuan ◽  
Xiaoyang Wang ◽  
Di Sun
Keyword(s):  
Schiff Base ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Crystal Packing ◽  
The Other ◽  
Stacking Interactions ◽  
Dimensional Chain ◽  
One Dimensional ◽  
The Stability ◽  
Methyl Benzene

A novel one-dimensional CuIIcoordination polymer,catena-poly[bis(μ4-3-{[2-(3-hydroxy-2-oxidobenzylidene)hydrazinylidene]methyl}benzene-1,2-diolato)dimethanoltricopper(II)], [Cu3(C14H10N2O4)2(CH3OH)2]n, (I), was constructed with a di-Schiff base supported centrosymmetric trinuclear CuIIsubunit. In the subunit, two peripheral symmetry-related CuIIcations have square-pyramidal CuNO4geometry and the central third CuIIcation lies on an inversion centre with octahedral CuN2O4geometry. In (I), each partially deprotonated di-Schiff base 3-{[2-(3-hydroxy-2-oxidobenzylidene)hydrazinylidene]methyl}benzene-1,2-diolate ligand (Hbcaz3−) acts as a heptadentate ligand to bind the CuIIcentres into chains along theaaxis. A centrosymmetric Cu2O2unit containing an asymmetrically bridging O atom, being axial at one Cu atom and equatorial at the other Cu atom, links the trinuclear CuIIsubunit into a one-dimensional chain, which is reinforced by intramolecular phenol–methanol O—H...O and methanol–phenolate O—H...O hydrogen bonds. Interchain π–π stacking interactions between pyrocatechol units, with a distance of 3.5251 (18) Å, contribute to the stability of the crystal packing.

An acylamide metal–organic framework with an unprecedented four-connecting trinodal topology and amide oxygen coordination

2014 ◽  
Vol 70 (8) ◽  
pp. 732-737
Author(s):  
Jian-Qiang Li ◽  
Xiao-Liu Wu ◽  
Shu-Juan Liu ◽  
Ming-Biao Luo
Keyword(s):  
Solid State ◽  
Coordination Polymer ◽  
Coordination Mode ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Luminescence Analysis ◽  
Oxygen Coordination ◽  
Metal Organic ◽  
Methyl Benzene ◽  
State Luminescence

The three-dimensional ZnIIcoordination polymer poly[[bis(μ2-benzene-1,4-dicarboxylato){μ4-N1,N3,N5-tris[(pyridin-3-yl)methyl]benzene-1,3,5-tricarboxamide}dizinc(II)] monohydrate], {[Zn2(C8H4O4)2(C27H24N6O3)]·H2O}n, is characterized by a rare (4,4,4)-connected (4.62.72.8)(4.62.73)(42.62.72) topology. The tricarboxamide ligand adopts an unprecedented tetradentate coordination mode, with one carboxamide O atom participating in the coordination. The polymer was further characterized by thermogravimetric and solid-state luminescence analysis.

A new three-dimensional manganese(II) coordination polymer based on the 1,3,5-tris[(1H-imidazol-1-yl)methyl]benzene ligand

2016 ◽  
Vol 72 (11) ◽  
pp. 895-900
Author(s):  
Xin-Hua Lu ◽  
Kai-Long Zhong
Keyword(s):  
Coordination Polymer ◽  
Crystal Engineering ◽  
Self Assembly ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
X Ray Diffraction ◽  
Ligand Coordination ◽  
Metal Organic ◽  
And Control ◽  
Methyl Benzene

The self-assembly of coordination polymers and the crystal engineering of metal–organic coordination frameworks have attracted great interest, but it is still a challenge to predict and control the compositions and structures of the complexes. Employing multidentate organic ligands and suitable metal ions to construct inorganic–organic hybrid materials through metal–ligand coordination and hydrogen-bonding interactions has become a major strategy. Recently, imidazole-containing multidentate ligands that contain an aromatic core have received much attention. A new three-dimensional MnIIcoordination polymer based on 1,3,5-tris[(1H-imidazol-1-yl)methyl]benzene, namely poly[(ethane-1,2-diol-κO)(μ-sulfato-κ2O:O′){μ3-1,3,5-tris[(1H-imidazol-1-yl)methyl]benzene-κ3N:N′:N′′}manganese(II)], [Mn(SO4)(C18H18N6)(C2H6O2)]n, was synthesized and characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Crystal structural analysis shows that there are two kinds of crystallographically independent MnIIcentres, each lying on a centrosymmetric position and having a similar six-coordinated octahedral structure. One is coordinated by four N atoms from four 1,3,5-tris[(1H-imidazol-1-yl)methyl]benzene (timb) ligands and two O atoms from two different bridging sulfate anions. The second is surrounded by two timb N atoms and four O atoms, two from sulfate anions and two from two ethane-1,2-diol ligands. The tripodal timb ligand bridges neighbouring MnIIcentres to generate a two-dimensional layered structure running parallel to theabplane. Adjacent layers are further bridged by sulfate anions, resulting in a three-dimensional structure with3,4,6-ctopology. Thermogravimetric analysis of the title polymer shows that it is stable up to 533 K. The first weight loss between 533 and 573 K corresponds to the release of coordinated ethane-1,2-diol molecules, and further decomposition occurred at 648 K.

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