Cadmium(II)-Organic Frameworks Containing the 1,3-Bis(2-methylimidazolyl)propane Ligand

Burlak, P. V.; Kovalenko, Konstantin A.; Самсоненко, Д. Г.; Федин, В. П.

doi:10.1134/s1070328422080024

Cited by 7 publications

(4 citation statements)

References 31 publications

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“…When the excitation is varied from 280 nm to 350 nm, the emission peak of bim undergoes a red shift as large as 84 nm (Figure S6b). Previously, similar photophysical behavior was observed for 1,3-bis(2-methylimidazol-1-yl)propane [38,39]. The emission spectrum of Zn-MOF was independent of the excitation wavelength and exhibited a bathochromic shift of the emission band with the maximum near 430 nm (Figure 4a).…”

Section: Luminescent Propertiessupporting

confidence: 80%

Synthesis, Crystal Structure, and Luminescent Sensing Properties of a Supramolecular 3D Zinc(II) Metal–Organic Framework with Terephthalate and Bis(imidazol-1-yl)methane Linkers

et al. 2023

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Supramolecular 3D Zn(II) coordination polymer {[Zn(bim)(bdc)]⋅0.8DMF⋅0.4EtOH⋅0.1H2O }n (Zn-MOF), constructed from Zn2+ ions, bis(imidazol-1-yl)methane (bim) and terephthalate (bdc2−) anions, was synthesized and structurally characterized. Zn-MOF crystallizes in the tetragonal crystal system, space group P42/n. Each Zn(II) ion coordinates two neutral bim molecules in a bridging bidentate coordination mode via nitrogen atoms at position 3 of the imidazole rings and two bdc2− anions, with monodentate coordination of the carboxylate group for one of them and bidentate coordination for another. Zn(II) cations are in a distorted square pyramidal ZnN2O3 coordination environment. Metal cations are alternately linked by the bim and bdc2− ligands, forming a two-dimensional layered structure along the crystallographic plane ab. As a result of layer interpenetration, a supramolecular 3D network is formed. Zn-MOF demonstrated blue (aquamarine) emission with a maximum at 430 nm upon excitation at 325 nm. The luminescence lifetime of 6 ns is characteristic for ligand-centered fluorescence. The luminescent sensing properties of Zn-MOF in ethanol suspension toward inorganic cations and anions were evaluated and an emission quenching response was observed for Fe3+ and chromate/dichromate ions. Photoinduced electron transfer from Zn-MOF to Fe3+ was elucidated as a possible quenching mechanism on the basis of DFT calculations.

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Section: Luminescent Propertiessupporting

confidence: 80%

Synthesis, Crystal Structure, and Luminescent Sensing Properties of a Supramolecular 3D Zinc(II) Metal–Organic Framework with Terephthalate and Bis(imidazol-1-yl)methane Linkers

et al. 2023

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“…For the preparation of 1-5, we used the solvothermal approach, which is widely applied in MOF chemistry [31][32][33][34][35][36]. The crystals of 1 and 2 were isolated from the same sample; as follows from the PXRD data (see Supporting Information), it contains 1, 2 and some other unidentified phase.…”

Section: Resultsmentioning

confidence: 99%

Two-Dimensional and Three-Dimensional Coordination Polymers Based on Ln(III) and 2,5-Diiodoterephthalates: Structures and Luminescent Behavior

et al. 2022

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Five new coordination polymers based on Ln3+ and 2,5-diiodoterephthalates (2,5-I-bdc)— {[La2(2,5-I-bdc)3(DMF)4]}·2DMF (1) and {[Ln2(2,5-I-bdc)3(DMF)4]} (Ln = La (2), Nd (3), Sm (4) and Eu (5))—were prepared and characterized by single crystal and powder X-ray diffractometry. Luminescent behavior was examined (the highest quantum yield is 4.5%); thermal stability was examined using thermogravimetric analysis.

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“…The single crystal structure can be directly transformed in the solid state, while the order of the lattice is not disrupted through this method, which is an effective way to reconstruct the structures of MOFs accompanied by the changes of coordination bonds, dimensions and porosity 24 . A number of SC‐SC changes in the dimensionality of framework materials have been reported to date 25,26 . From external factors, most of the SCSC conversion reconstruction crystal structure were triggered by external stimuli such as light, temperature, solvent, and pressure 27,28 .…”

Section: Introductionmentioning

confidence: 99%

“…24 A number of SC-SC changes in the dimensionality of framework materials have been reported to date. 25,26 From external factors, most of the SCSC conversion reconstruction crystal structure were triggered by external stimuli such as light, temperature, solvent, and pressure. 27,28 This drastic structural transition through SCSC transformation can achieve MOF functionalization, particularly for those examples with potential applications such as photocatalysis and electrocatalysis.…”

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confidence: 99%

Single‐crystal‐to‐single‐crystal transformation of a two‐dimensional noninterpenetrated layer to a microporous three‐dimensional fourfold interpenetrated MOF triggered by DMF

Huang,

Wu,

Tuo

et al. 2024

Applied Organom Chemis

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We have demonstrated a single‐crystal‐to‐single‐crystal (SCSC) transformation from a two‐dimensional noninterpenetrated layer to a microporous three‐dimensional fourfold interpenetrated MOF. The centrosymmetric [Co2(μ2‐OH)(EIBA)3]n (SNUT‐25) transforms into a microporous [Co(EIBA)2]n (SNUT‐26), which is triggered by the reaction time with DMF that acts as a structure‐directing agent (HEIBA = 4‐(2‐ethyl‐1H‐imidazol‐1‐yl)benzoic acid; DMF = N,N′‐dimethylformamide). Despite the distinct structure and coordination arrangements of SNUT‐25 in contrast to SNUT‐26, both Co‐MOFs were synthesized using the same ligand. Fascinatingly, upon introducing a specific quantity of DMF combined with a negligible proportion of nitric acid, SNUT‐25 will progressively and completely transform into SNUT‐26. Under the synergistic induction of solvent molecules and temperature, SNUT‐25 changed from the original two‐dimensional layered structure to the three‐dimensional pore structure of SNUT‐26. In addition, SNUT‐25 and SNUT‐26 are efficient photocatalysts for the degradation of organic dye methyl blue (MB) under visible light irradiation. Surprisingly, the degradation rates of both SNUT‐25 and SNUT‐26 can reach over 96%. In addition, SNUT‐25 and SNUT‐26 also exhibited high electrocatalytic oxygen evolution reaction.

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Cadmium(II)-Organic Frameworks Containing the 1,3-Bis(2-methylimidazolyl)propane Ligand

Cited by 7 publications

References 31 publications

Synthesis, Crystal Structure, and Luminescent Sensing Properties of a Supramolecular 3D Zinc(II) Metal–Organic Framework with Terephthalate and Bis(imidazol-1-yl)methane Linkers

Synthesis, Crystal Structure, and Luminescent Sensing Properties of a Supramolecular 3D Zinc(II) Metal–Organic Framework with Terephthalate and Bis(imidazol-1-yl)methane Linkers

Two-Dimensional and Three-Dimensional Coordination Polymers Based on Ln(III) and 2,5-Diiodoterephthalates: Structures and Luminescent Behavior

Single‐crystal‐to‐single‐crystal transformation of a two‐dimensional noninterpenetrated layer to a microporous three‐dimensional fourfold interpenetrated MOF triggered by DMF

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