scholarly journals Structural Insights into New Bi(III) Coordination Polymers with Pyridine-2,3-Dicarboxylic Acid: Photoluminescence Properties and Anti-Helicobacter pylori Activity

2020 ◽  
Vol 21 (22) ◽  
pp. 8696
Author(s):  
Mateusz Kowalik ◽  
Joanna Masternak ◽  
Iwona Łakomska ◽  
Katarzyna Kazimierczuk ◽  
Anna Zawilak-Pawlik ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Pentagonal Bipyramid ◽  
X Ray Diffraction ◽  
Space Group ◽  
Ft Ir ◽  
Group 2 ◽  
H Pylori ◽  
Structural Insights

Two novel coordination polymers, [Bi2(2,3pydc)2(2,3pydcH)2(H2O)]n (1) and {(Et3NH)2[Bi(2,3pydc)(2,3pydcH)Cl2]}n (2) were prepared using as a prolinker pyridine-2,3-dicarboxylic acid (2,3pydcH2). The obtained complexes were fully characterized by elemental analysis, TG/DTG, FT-IR, solid-state photoluminescence, DFT calculations and single-crystal X-ray diffraction. The obtained complexes crystallized in the triclinic P-1 space group (1) and comprise dimeric units with two crystallographically different Bi(III) centers (polyhedra: distorted pentagonal bipyramid and bicapped trigonal prism) and monoclinic P21/c space group (2) with a distorted monocapped pentagonal bipyramid of Bi(III) center. The various coordination modes of bridging carboxylate ligands are responsible for the formation of 1D chains with 4,5C10 (1) and 2C1 (2) topology. The photoluminescence quantum yield for polymer 2 is 8.36%, which makes it a good candidate for more specific studies towards Bi-based fluorescent materials. Moreover, it was detected that polymer 1 is more than twice as active against H. pylori as polymer 2. It can be concluded that there is an existing relationship between the structure and the antibacterial activity because the presence of chloride and triethylammonium ions in the structure of complex 2 reduces the antibacterial activity.

Synthesis, Structures and Properties of Two New Three-Dimensional Ce(III) Coordination Polymers with 2,2'-Bipyridine-4,4'-Dicarboxylic Acid

2013 ◽  
Vol 750-752 ◽  
pp. 1708-1711
Author(s):  
Rui Ping Zheng ◽  
Hui Yuan Chen ◽  
Jun Jie He ◽  
He Ping Zeng
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Luminescent Properties ◽  
Dimethyl Formamide ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Space Group ◽  
Solvothermal Condition ◽  
Structures And Properties

Two new Ce(III) coordination polymers formulated as Ce(bpdc)(Hbpdc)(DMF)2 (1) and [Ce2(bpdc)3(DMF)2(H2O)4]·2DMF (2) (H2bpdc = 2,2'-bipyridine-4,4'-dicarboxylic acid, DMF = N,N-Dimethyl formamide) have been synthesized under solvothermal condition and characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in monoclinic, space group C2/c with a = 2.2520(2), b = 1.17787(12), c = 1.16128(11) nm, α = 90, β = 95.5600(10), γ = 90°, V = 3.0658(5) nm3, Z = 4, Mr = 771.70, Dc = 1.672×10-9 g/cm3. Compound 2 crystallizes in triclinic, space group Pwith a = 1.00610(10), b = 1.17219(11), c = 1.36891(14) nm, α = 66.9340(10), β = 87.182(2), γ = 76.2570(10) °, V = 1.4411(2) nm3, Z = 1, Mr = 1371.25, Dc = 1.580×10-9 g/cm3. Both compounds exhibit 3D Ce(III)–organic frameworks. Furthermore, thermal stability and luminescent properties were also investigated. CCDC:(1)913670, (2)909563.

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.

Temperature Dependent On Activated Carbon For Their Biological Activity And Photocatalytical Degradation of Methylene Blue: A Novel Approach To Green Synthesis

2021 ◽  
Author(s):  
Amalanathan.M ◽  
Aravind.M ◽  
Sony Michael Mary.M ◽  
Razan A. Alshgari ◽  
Asma A. Alothman ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Antibacterial Activity ◽  
Activated Carbon ◽  
Hydrothermal Carbonization ◽  
Microbial Pathogens ◽  
X Ray Diffraction ◽  
E Coli ◽  
Novel Approach ◽  
Transmission Electron ◽  
Ft Ir

Abstract In this work, jasmine flower derived activated carbon were successfully synthesized by hydrothermal carbonization process at the different annealing temperature. The Crystallinity, phase, structural, morphological and optical properties of activated carbon were investigated using X-ray diffraction (XRD), Fourier Transform Infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM), Transmission electron microscope (TEM), and UV-visible spectroscopy analysis. The graphitic phase of carbon was obtained from the XRD pattern. Surface morphology reveals irregular-shaped nanoparticles. The photodegradation of methylene blue (MB) was carried out under the visible light irradiation technique to study its photocatalytic activity. The activated carbon obtained at 400oC, 500oC and 600oC shows a photocatalytic degradation efficiency of 86%, 90%, and 94%, respectively. Antibacterial activity of activated carbon was examined against S. Aureus (MTCC-737) and E-Coli (MTCC- 443) microbial pathogens, and their potent antibacterial activity was examined from the zone of inhibition layer.

Two- and three-dimensional coordination polymers based on zinc(II) and furan-2,5-dicarboxylic acid: structure variation due to metal-to-linker ratio

2018 ◽  
Vol 74 (12) ◽  
pp. 1719-1724 ◽  
Author(s):  
Yimin Mao ◽  
Peter Y. Zavalij
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Molar Ratio ◽  
Monoclinic Space Group ◽  
Structure Variation ◽  
Space Group ◽  
Hydrogen Bonding Pattern ◽  
Solvent Molecules ◽  
A Chain

Two ZnII-based coordination polymers (CPs) were synthesized by the hydrothermal method, using Zn(NO3)2·6H2O and furan-2,5-dicarboxylic acid (FDCA) in dimethylformamide (DMF) solvent, at 95 °C. Poly[tetrakis(dimethylazanium) [tetrakis(μ2-furan-2,5-dicarboxylato-κ2 O 2:O 5)dizinc(II)]], {(C2H8N)4[Zn2(C6H2O5)4]} n or {[DMA]4[ZnII 2(FDC)4]} n (DMA = dimethylazanium and FDC = furan-2,5-dicarboxylate), (1), was obtained with a 1:1 molar ratio of ZnII and FDCA. It crystallized in the monoclinic space group C2/c. Coordinated by ZnII ions, FDC2− ligands form 21 double-stranded helices propagating along the b axis. The helices are interconnected and extend laterally in the a direction, forming a two-dimensional (2D) sheet-like network. The 2D sheets are stacked along the c direction without interconnections. DMA cations are cocrystallized in (1) and are hydrogen bonded with carboxylate O atoms of the FDC2− ligands. The hydrogen-bonding pattern consists of R 2 2(4) and R 2 2(10) motifs alternating in a chain. Poly[bis(dimethylazanium) [bis(μ4-furan-2,5-dicarboxylato-κO 2:κO 2′:κO 5:κO 5)bis(μ3-furan-2,5-dicarboxylato-κO 2:κO 2′:κO 5)dizinc(II)] dimethylformamide 3.08-solvate], {(C2H8N)2[Zn2(C6H2O5)4]·3.08C3H7NO} n or {[DMA]2[ZnII 3(FDC)4]·3.08DMF} n , (2), was obtained with a 1:2 molar ratio of ZnII and FDCA. It crystallized in the monoclinic space group P21/c, forming a three-dimensional network. The pores are filled with DMA cations and DMF solvent molecules.

Hydrothermal Syntheses, Crystal Structures, and Luminescent Properties of Two MnII Coordination Polymers: From Two-Fold Interpenetrated pcu Topological Net to Polycatenated 2D+2D→3D Framework

2015 ◽  
Vol 68 (2) ◽  
pp. 322 ◽  
Author(s):  
Wenlong Liu ◽  
Mengqiang Wu ◽  
Xueying Wang ◽  
Wei Wang ◽  
Dayu Liu ◽  
...  
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Room Temperature ◽  
Luminescent Properties ◽  
The Self ◽  
X Ray Diffraction ◽  
X Ray ◽  
3D Framework ◽  
Dimethyl Benzene

Using a hydrothermal synthesis, the self-assembly of MnII ions and 1,4-bis(1-imidazol-yl)-2,5-dimethyl benzene with two dicarboxylate ligands, 2-nitrobenzene-1,4-dicarboxylic acid (2-H2ata) and 5-methylbenzene-1,3-dicarboxylic acid (5-CH3-H2ip) constructed two interesting coordination polymers: [Mn(2-ata)(bimb)]n (1) and {[Mn(5-CH3-ip)(bimb)1.5]·2H2O}n (2), where bimb refers to 1,4-bis(1-imidazol-yl)-2,5-dimethyl benzene. Their structures were determined by single-crystal X-ray diffraction, elemental analysis, and infrared spectroscopy. Complex 1 exhibits a 2-fold interpenetrated pcu net. Complex 2 shows an unusual polycatenated 2D+2D→3D framework. In addition, the solid-state photoluminescent properties of 1 and 2 were investigated at room temperature.

Lanthanide coordination polymers based on designed bifunctional 2-(2,2′:6′,2″-terpyridin-4′-yl)benzenesulfonate ligand: syntheses, structural diversity and highly tunable emission

2019 ◽  
Vol 75 (5) ◽  
pp. 855-864 ◽  
Author(s):  
Yi-Chen Hu ◽  
Chao Bai ◽  
Huai-Ming Hu ◽  
Chuan-Ti Li ◽  
Tian-Hua Zhang ◽  
...  
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Emission Spectra ◽  
Green Emission ◽  
Structural Diversity ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
Lanthanide Coordination Polymers ◽  
Connected Node ◽  
Tunable Emission

Seven novel lanthanide coordination polymers, [Eu(STP)(glu)] n (1), [Ln4(STP)2(glu)5] n ·4nH2O [Ln = Er (2), Yb (3)], [Ln(STP)(1,3-bdc)] n ·0.5nH2O [Ln = Tb (4), Yb (5)], and [Ln(STP)(1,2-bdc)] n [Ln = Eu (6), Tb (7)] [NaSTP = sodium 2-(2,2′:6′,2″-terpyridin-4′-yl)benzenesulfonate, H2glu = glutaric acid, H2(1,3-bdc) = benzene-1,3-dicarboxylic acid, H2(1,2-bdc) = benzene-1,2-dicarboxylic acid], have been prepared under hydrothermal conditions and characterized by elemental analysis, IR and single-crystal X-ray diffraction. Compound (1) possesses a 2D layered structure based on 1D chains with STP− and glu2− anions acting as bridges. Compounds (2) and (3) are isomorphous and show a rare 3D tcj/hc net with a tetranuclear Ln3+ unit regarded as a seven-connected node and a glu2− anion serving as a three-connected node. Compounds (4) and (5) are isomorphous and exhibit six-connected pcu nets by denoting binuclear units to six-connected nodes. Compounds (6) and (7) display 3D 3,5T1 nets with (1,2-bdc)2− anions and dimetallic units serving as three- and five-connected nodes, respectively. The Eu compounds (1) and (6) demonstrate typically red emission, while the Tb compounds (4) and (7) exhibit characteristic green emission. The emission spectra of heteronuclear compounds [Eu x Tb1−x (STP)(1,2-bdc)] n (0 ≤ x ≤ 1) as efficient luminescent tags were investigated. The intermetallic energy transfer of Tb to Eu was also evaluated.

Assembly of two novel coordination polymers by selecting ditopic or chelating auxiliary ligands with naphthalene-2,6-dicarboxylic acid: synthesis, structure and luminescence sensing

2020 ◽  
Vol 76 (12) ◽  
pp. 1076-1084
Author(s):  
Yuxiang Zuo ◽  
Jie Yang ◽  
Cheng Chen ◽  
Yun-Shan Xue ◽  
Jun Zhang
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Chemical Sensors ◽  
Acid Synthesis ◽  
Selective Detection ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Biochemical Processes ◽  
Solvothermal Methods

The FeIII ion as a ubiquitous metal plays a key role in biochemical processes. Iron deficiency or excess in the human body can induce various diseases. Thus, effective detection of the FeIII ion has been deemed an issue of focus. To develop more crystalline chemical sensors for the selective detection of Fe3+, two novel two-dimensional (2D) coordination polymers, namely, poly[[[μ-bis(pyridin-4-yl)amine-κ2 N:N′](μ-naphthalene-2,6-dicarboxylato-κ2 O 2:O 6)zinc(II)] 0.5-hydrate], {[Zn(C12H6O4)(C10H9N3)]·0.5H2O} n , 1, and poly[(4,4′-dimethyl-2,2′-bipyridine-κ2 N,N′)(μ-naphthalene-2,6-dicarboxylato-κ2 O 2:O 6)hemi(μ-naphthalene-2,6-dicarboxylic acid-κ2 O 2:O 6)copper(II)] [Cu(C12H6O4)(C12H12N2)(C12H8O4)0.5] n , 2, have been prepared using solvothermal methods. Single-crystal X-ray diffraction analysis shows that compound 1 is an undulating twofold interpenetrated 2D (4,4)-sql network and compound 2 is a twofold interpenetrated 2D honeycomb-type network with a (6,3)-hcb topology. In addition, 1 exhibits highly selective sensing for the Fe3+ ion.

The mixed-valent 10-manganese(III/IV)-containing 36-tungsto-4-arsenate(V), [MnIII 6MnIV 4O4(OH)12(H2O)12(A-β-AsW9O34)4]22−

2018 ◽  
Vol 74 (11) ◽  
pp. 1390-1394 ◽  
Author(s):  
Rami Al-Oweini ◽  
Bassem S. Bassil ◽  
Marwa Itani ◽  
Dilara Börte Emiroğlu ◽  
Ulrich Kortz
Keyword(s):  
Ir Spectroscopy ◽  
Single Crystal ◽  
Sodium Salt ◽  
X Ray Diffraction ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
X Ray ◽  
Potassium Sodium ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Interaction of the mixed-valent 12-manganese coordination complex [MnIII 8MnIV 4O12(CH3COO)16(H2O)4] with the lacunary 9-tungstoarsenate(V) [A-α-AsW9O34]9− resulted in the 10-manganese(III/IV)-containing 36-tungsto-4-arsenate(V), [MnIII 6MnIV 4O4(OH)12(H2O)12(A-β-AsW9O34)4]22− (1). Polyanion 1 was isolated as a hydrated mixed potassium–sodium salt, K14Na8[MnIII 6MnIV 4O4(OH)12(H2O)12(A-β-AsW9O34)4]·104H2O, which crystallizes in the orthorhombic space group Pbcn and was characterized by FT–IR spectroscopy and single-crystal X-ray diffraction, as well as elemental and thermogravimetric analyses. The title polyanion contains a unique [MnIII 6MnIV 4O4(OH)12(H2O)12]14+ core stabilized within the 36-tungsto-4-arsenate(V) framework.

scholarly journals Impact of Isomeric Dicarboxylate Ligands on the Formation of One-Dimensional Coordination Polymers and Metallocycles: A Novel cis→trans Isomerization

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1281
Author(s):  
Kuan-Ting Chen ◽  
Ji-Hong Hu ◽  
Xiang-Kai Yang ◽  
Jhy-Der Chen
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Water Adsorption ◽  
Helical Chain ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
X Ray ◽  
Trans Isomerization ◽  
Convex Chain ◽  
Cis And Trans

A series of Co(II), Ni(II) and Cu(II) coordination polymers and dinuclear metallocycles containing 4-aminopyridine (4-ampy) and benzenedicarboxylate ligands, {[M(4-ampy)2(1,4-BDC)]·H2O·CH3CH2OH}n (M = Ni, 1a; Co, 1b, 1,4-H2BDC = benzene-1,4-dicarboxylic acid), {[Ni2(4-ampy)4(1,3-BDC)2]·H2O·CH3CH2OH}n (1,3-H2BDC = benzene-1,3-dicarboxylic acid), 2, [M2(4-ampy)4(1,2-BDC)2] (M = Ni, 3a; Co, 3b, 1,2-H2BDC = benzene-1,2-dicarboxylic acid), [Co(4-ampy)2(1,3-BDC)]n, 4, {[Cu(4-ampy)2(1,4-BDC)] CH3CH2OH}n, 5a, and {[Cu(4-ampy)2(1,4-BDC)]·H2O}n, 5b·H2O, are reported, which were hydrothermally prepared and structurally characterized by using single crystal X-ray diffraction. Complexes 1a and 1b are isomorphous 1D zigzag chains, while 2 displays a concave–convex chain and 3a and 3b are dinuclear metallocycles that differ in the boding modes of the 1,2-BDC2− ligands, forming a 3D and a 2D supramolecular structures with the pcu and sql topologies, respectively. Complex 4 exhibit a 1D helical chain and complexes 5a and 5b·H2O are 1D linear and zigzag chains, in which the Cu2-1,4-BDC2− units adopt the cis and trans configurations, respectively. A novel irreversible structural transformation due to cis→trans isomerization of the Cu2-1,4-BDC2− units was observed in 5b⋅H2O and 5a upon water adsorption of the desolvated product of 5b·H2O.

Controlling dimensionality via a dual ligand strategy in Ln-thiophene-2,5-dicarboxylic acid-terpyridine coordination polymers

2015 ◽  
Vol 44 (36) ◽  
pp. 15843-15854 ◽  
Author(s):  
Korey P. Carter ◽  
Cecília H. F. Zulato ◽  
Emille M. Rodrigues ◽  
Simon J. A. Pope ◽  
Fernando A. Sigoli ◽  
...  
Keyword(s):  
Single Crystal ◽  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Luminescence Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray

Eleven new lanthanide-2,5-TDC-terpyridine coordination polymers which employ a dual ligand strategy have been synthesized and characterized by single crystal and powder X-ray diffraction as well as luminescence spectroscopy.

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