A thermally stable three-dimensional cobalt(II) coordination polymer based on the V-shaped ligand 4-(4-carboxyphenoxy)isophthalate

2018 ◽  
Vol 74 (9) ◽  
pp. 1032-1037 ◽  
Author(s):  
Shao-Dong Li ◽  
Li-Ping Lu ◽  
Miao-Li Zhu
Keyword(s):  
Thermal Stability ◽  
Magnetic Properties ◽  
Coordination Polymer ◽  
Room Temperature ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Good Thermal Stability ◽  
Secondary Building Units ◽  
Point Symbol

A new cobalt(II) coordination polymer (CP), poly[[bis[μ6-4-(4-carboxylatophenoxy)benzene-1,3-dicarboxylato-κ6 O 1:O 1:O 3:O 3′:O 4:O 4′]bis(1,10-phenanthroline-κ2 N,N′)tricobalt(II)] 0.72-hydrate], {[Co3(C15H7O7)2(C12H8N2)2]·0.72H2O} n , (I), is constructed from CoII ions and 4-(4-carboxyphenoxy)isophthalate (cpoia3−) and 1,10-phenanthroline (phen) ligands. Based on centrosymmetric trinuclear [Co3(phen)2(COO)6] secondary building units (SBUs), the structure of (I) is a three-dimensional CP with a (3,6)-connected net and point symbol (42.6)2(44.62.87.102). The positions of four [Co3(phen)2(COO)6] SBUs and four cpoia3− ligands reproduce a Chinese-knot-shaped arrangement along the ab plane. (I) has been characterized by single-crystal X-ray diffraction, IR spectroscopy, powder X-ray diffraction (PXRD) and thermostability analysis. It shows a good thermal stability from room temperature to 673 K. In addition, the temperature dependence of the magnetic properties was measured.

A novel three-dimensional tetranuclear CoII coordination polymer with water hexamers based on the V-shaped tetracarboxylate ligand 4-(2,4-dicarboxylatophenoxy)phthalate

2020 ◽  
Vol 76 (9) ◽  
pp. 863-868
Author(s):  
Shao-Dong Li ◽  
Feng Su ◽  
Miao-Li Zhu ◽  
Li-Ping Lu
Keyword(s):  
Coordination Polymer ◽  
Phthalic Acid ◽  
Water Clusters ◽  
3D Structure ◽  
Three Dimensional ◽  
Solvothermal Reaction ◽  
X Ray Diffraction ◽  
X Ray ◽  
Secondary Building Units ◽  
Point Symbol

A new coordination polymer (CP), namely, poly[[diaquatris[μ2-1,4-bis(1H-imidazol-1-yl)benzene]bis[μ6-4-(2,4-dicarboxylatophenoxy)phthalato]tetracobalt(II)] hexahydrate], {[Co4(C16H6O9)2(C12H10N4)3(H2O)2]·6H2O} n , has been synthesized by solvothermal reaction. The CP was fully characterized by IR spectroscopy, elemental analysis, thermogravimetric analysis, and powder and single-crystal X-ray diffraction. It presents a three-dimensional (3D) structure based on tetranuclear CoII secondary building units (SBUs) with a tfz-d net and point symbol (43)2(46·618·84). The 4-(2,4-dicarboxyphenoxy)phthalic acid (H4dcppa) ligands are completely deprotonated and link {Co4(COO)4}4− SBUs into two-dimensional (2D) layers. Furthermore, adjacent layers are connected by 1,4-bis(1H-imidazol-1-yl)benzene (bib) ligands, giving rise to a 3D supramolecular architecture. Interestingly, there are numerous elliptical cavities in the CP where isolated unique discrete hexameric water clusters have been observed. The results of thermogravimetric and magnetic analyses are described in detail.

A three-dimensional cyanide-bridged heterometallic coordination polymer: poly[[diacetonitrilediaqua[μ2-3,6-bis(pyridin-2-yl)-1,2,4,5-tetrazine-κ4N1,N6:N3,N4]tetra-μ-cyanido-tetracyanidodimanganese(II)molybdate(IV)] dihydrate]

2014 ◽  
Vol 70 (11) ◽  
pp. 1029-1032 ◽  
Author(s):  
Xiao-Juan Xu
Keyword(s):  
Magnetic Properties ◽  
Ir Spectroscopy ◽  
Coordination Polymer ◽  
Elemental Analysis ◽  
Room Temperature ◽  
Three Dimensional ◽  
Antiferromagnetic Coupling ◽  
X Ray Diffraction ◽  
X Ray ◽  
Magnetic Investigation

A metal coordination polymer, {[Mn2Mo(CN)8(C12H8N6)(CH3CN)2(H2O)2]·2H2O}n, has been synthesized by the reaction of Mn(ClO4)2·6H2O with 3,6-bis(pyridin-2-yl)-1,2,4,5-tetrazine (bptz) and (Bu3N)3[Mo(CN)8] at room temperature. The polymer was characterized by IR spectroscopy, elemental analysis and X-ray diffraction, and the magnetic properties were also investigated. The X-ray diffraction analysis reveals that the compound is a new three-dimensional coordination polymer with a PtS-type network. Magnetic investigation shows antiferromagnetic coupling between adjacent Mn2+cations.

A 4′-(4-carboxyphenyl)-3,2′:6′,3′′-terpyridine-based luminescent cadmium(II) coordination polymer for the detection of 2,4,6-trinitrophenol

2019 ◽  
Vol 75 (5) ◽  
pp. 508-513 ◽  
Author(s):  
Bin Xu ◽  
Fuming Luo ◽  
Guodong Tang ◽  
Jinfang Zhang
Keyword(s):  
Coordination Polymer ◽  
Layer Structure ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Quenching Effect ◽  
Good Thermal Stability ◽  
Octahedral Environment ◽  
Strong Luminescence ◽  
Thermal Stability Of

The title coordination polymer, poly[bis[μ3-4-(3,2′:6′,3′′-terpyridin-4′-yl)benzoato]cadmium(II)], [Cd(C22H14N3O2)2] n or [Cd(3-cptpy)2] n , (I), has been synthesized solvothermally and characterized by IR spectroscopy, thermogravimetric analysis, and single-crystal and powder X-ray diffraction. The structure is composed of 3-cptpy− ligands bridging Cd atoms, with each Cd atom coordinated by six ligands and each ligand coordinating to three Cd atoms. Each Cd atom is in a slightly distorted trans-N2O4 octahedral environment, forming a two-dimensional layer structure with a (3,6)-connected topology. Layers are linked to each other by π–π stacking, resulting in a three-dimensional supramolecular framework. The strong luminescence and good thermal stability of (I) indicate that it can potentially be used as a luminescence sensor. The compound also shows a highly selective and sensitive response to 2,4,6-trinitrophenol through the luminescence quenching effect.

scholarly journals Stable Organic-Inorganic Hybrid Bismuth-Halide Monocrystalline Compounds With Adjustable Optoelectronic Properties

2021 ◽  
Author(s):  
Xinru Hu ◽  
Jilin Wang ◽  
Jian He ◽  
Guoyuan Zheng ◽  
Disheng Yao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Room Temperature ◽  
Diffuse Reflectance ◽  
Decomposition Temperature ◽  
X Ray Diffraction ◽  
Monoclinic System ◽  
X Ray ◽  
Good Thermal Stability ◽  
Chemical Groups ◽  
Thermal Stability Of

Abstract Two kinds of novel organic-inorganic bismuth-halide hybrid monocrystalline compounds (C6H5CH2NH3)2BiCl5 and (C6H5CH2NH3)BiI4 were synthesized and characterized. The crystal structure, intermolecular interaction, morphology, chemical groups and bonds, optical and thermal stability of the samples were systematically investigated through single crystal X-ray diffraction, Hirshfeld surface analysis, SEM, FTIR, TG and UV-vis diffuse reflectance spectra. The results indicated that (C6H5CH2NH3)2BiCl5 and (C6H5CH2NH3)BiI4 crystals displayed a monoclinic system with the space group P21/c and P21/n at room temperature, respectively. These materials showed strong absorption in the ultraviolet and visible light regions, resulting in very low Eg, which could be continuously adjustable from 1.67 eV to 3.21 eV by changing the halogen ratio. In addition, these hybrid materials also exhibited good thermal stability. The decomposition temperature of (C6H5CH2NH3)2BiCl5 and (C6H5CH2NH3)BiI4 were 260℃ and 300℃ respectively. Therefore, these organic-inorganic bismuth-halide hybrid compounds have excellent development potential in the field of solar cell research.

scholarly journals A New 3D Coordination Polymer of Bismuth with Nicotinic AcidN-Oxide

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Farzin Marandi ◽  
Ingo Pantenburg ◽  
Gerd Meyer
Keyword(s):  
Crystal Structure ◽  
Thermal Stability ◽  
Coordination Polymer ◽  
Three Dimensional ◽  
Water Molecules ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
X Ray ◽  
H Nmr ◽  
Thermal Stability Of

The new three-dimensional coordination polymer {[Bi(NNO)2(NO3)]·1.5H2O}n(1, NNO−= nicotinateN-oxide) was synthesized and characterized by elemental analysis, IR and1H-NMR spectroscopy, as well as single-crystal X-ray diffraction analysis.1crystallizes in the monoclinic space group C2/c. The crystal structure consists of a rectangular-shaped grid constructed with NNO linkers. Cavities of a diameter of 7.9–8.3 Å2are filled with disordered water molecules. The thermal stability of the compound was evaluated by thermogravimetric analysis.

A Silver(I) Coordination Polymer Based on a Schiff Base Ligand: Synthesis, Crystal Structure and Luminescence Properties

2013 ◽  
Vol 68 (3) ◽  
pp. 284-288 ◽  
Author(s):  
Lin Yu Jin ◽  
Meng Meng Li ◽  
Dong Bin Dang ◽  
Yan Bai ◽  
Yan Ning Zheng
Keyword(s):  
Coordination Polymer ◽  
Room Temperature ◽  
Three Dimensional ◽  
Chain Structure ◽  
Luminescence Properties ◽  
Tridentate Ligand ◽  
Supramolecular Network ◽  
Zigzag Chain ◽  
X Ray Diffraction ◽  
X Ray

A new Ag(I) coordination polymer [AgL(NO3)]n 1 (L=4-(pyridine-2-yl)methyleneamino-1,2,4- trizaole) has been synthesized and characterized by IR spectroscopy, elemental analysis, powder and single-crystal X-ray diffraction. The Ag(I) atom has a seesaw environment with an N3O donor set from three N atoms of two ligands and one O atom of one NO-3 anion. Each twisted tridentate ligand is bound to two silver centers, and each silver atom is coordinated by two ligands thereby generating a zigzag chain structure. The chains interact with each other featuring a three-dimensional supramolecular network through multiple weak C-H···π interactions and C-H···O hydrogen bonds. The luminescence properties of the polymer 1 were investigated in the solid state at room temperature.

Synthesis and structural characterization of a three-dimensional two-fold interpenetrated coordination polymer constructed from bis(4-(1H-imidazol-1-yl)phenyl)methanone and 1,1ʹ-biphenyl-2,2ʹ-dicarboxylate ligands for cadmium(II)

2020 ◽  
Vol 75 (8) ◽  
pp. 733-737
Author(s):  
Gao-Feng Wang ◽  
Shu-Wen Sun ◽  
Hong Sun ◽  
Bo-Hui Wei ◽  
Yan-Fei Zhao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Ir Spectroscopy ◽  
Coordination Polymer ◽  
Topological Structure ◽  
Solvothermal Method ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Elemental Analyses

AbstractA three-dimensional (3D) two-fold interpenetrated coordination polymer, {[Cd(bipmo)(bpda)]·1.25(H2O)}n (1), (bipmo = bis(4-(1H-imidazol-1-yl)phenyl)methanone, H2bpda = 1,1ʹ-biphenyl-2,2ʹ-dicarboxylic acid), was synthesized by a solvothermal method. It has been characterized by elemental analyses, infrared (IR) spectroscopy, and single-crystal X-ray diffraction. The topological structure of 1 consists of uninodal dia nets with two-fold penetration. The thermal stability and the luminescence properties of complex 1 were investigated.

A two-dimensional coordination polymer: poly[diaqua(μ4-4,4′-oxydibenzoato)(μ2-4,4′-oxydibenzoato)dilead(II)]

2014 ◽  
Vol 70 (12) ◽  
pp. 1105-1108
Author(s):  
Xiao-Juan Xu
Keyword(s):  
Coordination Polymer ◽  
Room Temperature ◽  
Fluorescence Emission ◽  
Aqua Ligand ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
X Ray Diffraction ◽  
Strong Fluorescence ◽  
X Ray ◽  
Point Symbol

In a new two-dimensional coordination polymer, [Pb(C14H8O5)(H2O)]n, the asymmetric unit consists of a PbIIcation, two halves of two crystallographically distinct fully deprotonated 4,4′-oxydibenzoate ligands and one aqua ligand. Single-crystal X-ray diffraction analysis reveals that the compound is a coordination polymer with the point symbol {53}2{54.82}. In addition, it exhibits a strong fluorescence emission in the solid state at room temperature.

New Metal-Rich Compounds NblrSi, NblrGe, and TalrSi -Synthesis, Structure, and Magnetic Properties

2001 ◽  
Vol 56 (6) ◽  
pp. 463-468 ◽  
Author(s):  
Ratikanta Mishra ◽  
Rainer Pöttgen ◽  
Gunter Kotzyba
Keyword(s):  
Magnetic Properties ◽  
Silicon Germanium ◽  
High Frequency ◽  
Room Temperature ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Arc Melting ◽  
Dimensional Network ◽  
Pauli Paramagnetism

AbstractThe metal-rich intermetallic compounds NblrSi, NblrGe, and TalrSi were synthesized by arc-melting of the elements and subsequent annealing in glassy carbon crucibles in a high-frequency furnace. The three compounds were investigated by X-ray diffraction on powders and single crystals: TiNiSi type, Pnma, a = 641.27(3), b = 379.48(2), c = 727.70(3) pm, wR2 = 0.0773, 430 F2 values for NblrSi, a = 645.48(3), b = 389.21(2), c = 741.11(4) pm, wR2 = 0.0981, 297 F2 values for NblrGe, and a = 638.11(3), b = 378.69(2), c = 726.78(3) pm, wR2 = 0.0887, 290 F2 values for TalrSi with 20 variables for each refinement. The iridium and silicon (germanium) atoms form a three-dimensional network of puckered Ir3Si3 and Ir3Ge3 hexagons in which the niobium (tantalum) atoms fill larger cages. Magnetic susceptibility measurements on NblrSi and TalrSi indicate Pauli paramagnetism with room temperature susceptibilities of 0.30(5)·10-9 and 0.97(5)·10-9 m3/mol, respectively.

The synthesis, crystal structure and magnetic properties of a one-dimensional terbium(III)–octacyanidomolybdate(V) assembly

2014 ◽  
Vol 70 (12) ◽  
pp. 1169-1173 ◽  
Author(s):  
Hong Shen
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Ir Spectroscopy ◽  
Coordination Polymer ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
X Ray ◽  
Cyanide Ligands ◽  
Ferromagnetic Interactions

A one-dimensional cyanide-bridged coordination polymer, poly[[aquadi-μ-cyanido-κ4C:N-hexacyanido-κ6C-(dimethylformamide-κO)bis(3,4,7,8-tetramethyl-1,10-phenanthroline-κ2N,N′)terbium(III)molybdate(V)] 4.5-hydrate], [MoTb(CN)8(C16H16N2)2(C3H7NO)(H2O)]·4.5H2O}n, has been prepared and characterized through IR spectroscopy, elemental analysis and single-crystal X-ray diffraction. The compound consists of one-dimensional chains in which cationic [Tb(tmphen)2(DMF)(H2O)]3+(tmphen is 3,4,7,8-tetramethyl-1,10-phenanthroline) and anionic [MoV(CN)8]3−units are linked in an alternating fashion through bridging cyanide ligands. Neighbouring chains are connected by three types of hydrogen bonds (O—H...O, O—H...N and C—H...O) and by π–π interactions to form a three-dimensional supramolecular structure. In addition, magnetic investigations show that ferromagnetic interactions exist in the compound.

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