Syntheses, crystal structures, and magnetic studies of two cobalt(II) coordination polymers based on concurrent ligand extension

Li, Shihui; Ma, Lu-Fang; Geng, Jun-Lei; Wang, Liya

doi:10.1016/j.inoche.2015.10.023

Cited by 27 publications

(6 citation statements)

References 43 publications

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“…Then, the adjacent 2D layers are interconnected by the bpa spacers to form a 3D porous framework. Interestingly, there are two equivalent frameworks to penetrate mutually to construct a twofold interpenetrated 3D architecture . Due to the arrangement of twofold interpenetrated networks, the pore size of the structure is decreased to a large extent.…”

Section: Resultssupporting

confidence: 75%

“…Interestingly, there are two equivalent frameworks to penetrate mutually to construct a twofold interpenetrated 3D architecture. 55 Due to the arrangement of twofold interpenetrated networks, the pore size of the structure is decreased to a large extent. From the topological view, the Zn atoms can be considered as 4connected nodes and the L ligand can be regarded as a 3connected node.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

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Rational Construction of Two Zn–Organic Frameworks for Selective Luminescent Sensing and Efficient CO₂ Chemical Fixation

Chai

Zhao

Liu

et al. 2022

Crystal Growth & Design

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Through a hydrothermal reaction of 3-(3-carboxylphenyl) isonicotinic acid (H2L) and dipyridyl with Zn(Ac)2·2H2O, two metal–organic frameworks (MOFs), [Zn(L)(bpa)0.5] n (1) and {[Zn(L)(bpp)0.5]·H2O} n (2) (bpa = 1,2-bi(4-pyridyl)ethane, bpp = 1,3-di(4-pyridyl)propane), are prepared. Complexes 1 and 2 have similar twofold interpenetrated three-dimensional (3D) layer-pillared networks. Compounds 1 and 2 exhibit outstanding fluorescence-sensing performances toward Cr2O7 2–, especially, featuring the ratiometric fluorescence against levofloxacin (LEVO) and ciprofloxacin (CIP). To the best of our knowledge, it is the first example of ratiometric detection using antibiotics. The quenching mechanism is mainly attributed to the large area of competitive absorption between the ultraviolet (UV) absorption bands of substances and the excitation peaks of complexes. Furthermore, compounds 1 and 2 could serve as efficient heterogeneous catalysts for the fixation of CO2 with various epoxides benefiting from the presence of unsaturated zinc ions as Lewis acid sites.

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Section: Resultssupporting

confidence: 75%

Section: ■ Experimental Sectionmentioning

confidence: 99%

Rational Construction of Two Zn–Organic Frameworks for Selective Luminescent Sensing and Efficient CO₂ Chemical Fixation

Chai

Zhao

Liu

et al. 2022

Crystal Growth & Design

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“…Additionally, the peaks at 1612 and 1445 are due to the vibration of aromatic ring of L1. [46][47][48][49][50]. In addition, a strong signal at 1474 cm −1 could be attributed to imidazole groups of building block E2 (Figure 8).…”

Section: Analysis Of Metallarectanglementioning

confidence: 97%

Size-Induced Highly Selective Synthesis of Organometallic Rectangular Macrocycles and Heterometallic Cage Based on Half-Sandwich Rhodium Building Block

et al. 2022

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The controlled synthesis of organometallic supramolecular macrocycles cages remains interesting and challenging work in the field of supramolecular chemistry. Here, two tetranuclear rectangular macrocycles and an octuclear cage were designed and synthesized utilizing a rigid and functionalized pillar linker, 2,6-bis(pyridin-4-yl)-1,7-dihydrobenzo [1,2-d:4,5-d′]diimidazole (BBI4PY) based on three half-sandwich rhodium building blocks bearing different sizes. X-ray crystallography in combination with 1H NMR spectroscopy elucidated that the two building blocks with shorter spacers only result in rectangular macrocycles. However, the building block of bulkier size to avoid the π-π stacking interactions between two ligands BBI4PY led to the formation of an octuclear cage complex. The latter cage contains two types of metal ions, namely Rh3+ and Cu2+, showing significant characteristics of heterogeneous metal-assembling compounds. In addition, the cage accommodates two free isopropyl ether solvent molecules, thus displaying host–guest behavior.

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“…Metal–organic frameworks (MOFs) as functional materials, due to their ease of design, diverse structure, chemical modifiability, high porosity and specific surface area, have been widely investigated in various fields such as fluorescent sensing [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ], heterogeneous catalysis [ 13 , 14 , 15 , 16 , 17 , 18 ], drug delivery [ 19 , 20 , 21 , 22 , 23 , 24 ], gas storage and separation [ 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. Modifying the metal sites and organic ligands is conducive to improving the adsorption and separation ability of the materials [ 33 , 34 , 35 , 36 , 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

The Selective CO2 Adsorption and Photothermal Conversion Study of an Azo-Based Cobalt-MOF Material

Dang

Zong²,

Lü³

et al. 2022

Molecules

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A new metal–organic framework (MOF), [Co2(L)2(azpy)]n (compound 1, H2L = 5-(pyridin-4-ylmethoxy)-isophthalic acid, azpy = 4,4′-azopyridine), was synthesized by a solvothermal method and further characterized by elemental analysis, IR spectra, thermogravimetric analysis, single-crystal and powder X-ray diffraction. The X-ray single-crystal diffraction analysis for compound 1 indicated that two cis L22− ligands connected to two cobalt atoms resulted in a macrocycle structure. Through a series of adsorption tests, we found that compound 1 exhibited a high capacity of CO2, and the adsorption capacity could reach 30.04 cm3/g. More interestingly, under 273 K conditions, the adsorption of CO2 was 41.33 cm3/g. In addition, when the Co-MOF was irradiated by a 730 nm laser, rapid temperature increases for compound 1 were observed (temperature variation in 169 s: 26.6 °C), showing an obvious photothermal conversion performance. The photothermal conversion efficiency reached 20.3%, which might be due to the fact that the parallel arrangement of azo units inhibited non-radiative transition and promoted photothermal conversion. The study provides an efficient strategy for designing MOFs for the adsorption of CO2 and with good photothermal conversion performance.

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Syntheses, crystal structures, and magnetic studies of two cobalt(II) coordination polymers based on concurrent ligand extension

Cited by 27 publications

References 43 publications

Rational Construction of Two Zn–Organic Frameworks for Selective Luminescent Sensing and Efficient CO₂ Chemical Fixation

Rational Construction of Two Zn–Organic Frameworks for Selective Luminescent Sensing and Efficient CO₂ Chemical Fixation

Size-Induced Highly Selective Synthesis of Organometallic Rectangular Macrocycles and Heterometallic Cage Based on Half-Sandwich Rhodium Building Block

The Selective CO2 Adsorption and Photothermal Conversion Study of an Azo-Based Cobalt-MOF Material

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Syntheses, crystal structures, and magnetic studies of two cobalt(II) coordination polymers based on concurrent ligand extension

Cited by 27 publications

References 43 publications

Rational Construction of Two Zn–Organic Frameworks for Selective Luminescent Sensing and Efficient CO2 Chemical Fixation

Rational Construction of Two Zn–Organic Frameworks for Selective Luminescent Sensing and Efficient CO2 Chemical Fixation

Size-Induced Highly Selective Synthesis of Organometallic Rectangular Macrocycles and Heterometallic Cage Based on Half-Sandwich Rhodium Building Block

The Selective CO2 Adsorption and Photothermal Conversion Study of an Azo-Based Cobalt-MOF Material

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Rational Construction of Two Zn–Organic Frameworks for Selective Luminescent Sensing and Efficient CO₂ Chemical Fixation

Rational Construction of Two Zn–Organic Frameworks for Selective Luminescent Sensing and Efficient CO₂ Chemical Fixation