Cu(II) coordination polymers with 4,4′-bipyridine. Synthesis and crystal structures

Sánchez-Férez, Francisco; Calvet, Teresa; Font-Bardı́a, Mercè

doi:10.1016/j.molstruc.2021.130219

Cited by 4 publications

(2 citation statements)

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“…Similarly, for the bpy-based compounds 3 and 4 (Figure S8b), the main characteristic vibrational bonds of bpy are observed at 443–1064, 1066, 1224–1319, 1414–1604, and 1652 cm –1 corresponding to C–H bending, CN stretching, C–H aromatic stretching, C–C ring, and – CC– stretching, respectively, while the peak at 3370 cm –1 is related to O–H stretching. All peaks coincide with data reported in the literature. , For the bpe-based compounds 5 and 6 (Figure S8c), the main spectral peaks are observed at 473–829, 901, 969–1068, 1201–1429, 1510, and 1612 cm –1 , which are related to C–H bending, CC bending, C–N stretching, C–H stretching, C = C stretching, and – CC– stretching, respectively, while the vibrational band at 3373 cm –1 corresponds to O–H bending …”

Section: Resultssupporting

confidence: 88%

“…All peaks coincide with data reported in the literature. 69,70 For the bpe-based compounds 5 and 6 (Figure S8c), the main spectral peaks are observed at 473−829, 901, 969−1068, 1201−1429, 1510, and 1612 cm −1 , which are related to C−H bending, C�C bending, C−N stretching, C−H stretching, C = C stretching, and − C�C− stretching, respectively, while the vibrational band at 3373 cm −1 corresponds to O−H bending. 71 Thermal Stability.…”

Section: ■ Introductionmentioning

confidence: 99%

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Copper-Based Two-Dimensional Metal–Organic Frameworks for Fenton-like Photocatalytic Degradation of Methylene Blue under UV and Sunlight Irradiation

Kim,

Lee,

Noh

et al. 2024

Inorg. Chem.

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To efficiently degrade organic pollutants, photocatalysts must be effective under both ultraviolet (UV) radiation and sunlight. We synthesized a series of new metal−organic frameworks by using mild hydrothermal conditions. These frameworks incorporate three distinct bipyridyl ligands: pyrazine (pyr), 4,4′-bipyridine (bpy), and 1,2-bis(4-pyridyl)ethane (bpe). The resulting compounds are denoted as and 5) and Hf (2, 4, and 6)]. All six compounds exhibited a two-dimensional crystal structure comprising infinitely nonintersecting linear chains. Compound 3 achieved 100% degradation of methylene blue (MB) after 8 min under UV irradiation and 100 min under natural sunlight in the presence of H 2 O 2 as the electron acceptor. For compound 5, 100% MB degradation was achieved after 120 min under sunlight and 10 min under UV light. Moreover, reactive radical tests revealed that the dominant species involved in photocatalytic degradation are hydroxyl (•OH), superoxide radicals (•O 2 − ), and photogenerated holes (h + ). The photodegradation process followed pseudo-first-order kinetics, with photodegradation rate constants of 0.362 min −1 (0.039 min −1 ) for 3 and 0.316 min −1 (0.033 min −1 ) for 5 under UV (sunlight) irradiation. The developed photocatalysts with excellent activity and good recyclability are promising green catalysts for degrading organic pollutants during environmental decontamination.

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Section: Resultssupporting

confidence: 88%

Section: ■ Introductionmentioning

confidence: 99%

Copper-Based Two-Dimensional Metal–Organic Frameworks for Fenton-like Photocatalytic Degradation of Methylene Blue under UV and Sunlight Irradiation

Kim,

Lee,

Noh

et al. 2024

Inorg. Chem.

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Regulation of Structure and Magnetic Properties for Nickel(II)/Cobalt(II) Coordination Polymers with 1,4‐Bis(imidazole‐1‐ylmethyl)benzene Ligand

Wang

Gong

2022

ChemistrySelect

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Two new coordination polymers Ni(bix) 3 ⋅ 2(NO 3 ) ⋅ (H 2 O) 1 and Co(bix) 2 ⋅ 2(NO 3 ) 2 (bix = 1,4-bis(imidazole-1-ylmethyl)benzene) have successfully been synthesized via hydrothermal reactions. These two compounds have similar local coordination environments but different topological networks due to the flexibility of the bix ligand. Additionally, magnetic studies reveal that 1 and 2 also exhibit different magnetic behaviors. Although magnetic exchange pathways are same as M II -bix-M II (M = Ni 1, Co 2), 1 shows purely paramagnetic state almost down to 2 K with weak antiferromagnetic interaction; while stronger antiferromagnetic interaction in 2 is suggested. Meanwhile, an anomaly around 38 K in zero-field-cooled mode is observed but suppressed in field-cooled mode, which may be suggesting the spin canting for 2. The field dependent magnetizations show magnetization of 2.17 μ B and 2.44 μ B at 7 T for 1 and 2, respectively. Also, the magnetic interaction J/k B of À 3.3 K is estimated for 2.

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RETRACTED:Treatment effects and mechanisms of Cu(II) coordination polymer in hypotension after anesthesia

Wang

Lan

2022

Journal of the Indian Chemical Society

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Cu(II) coordination polymers with 4,4′-bipyridine. Synthesis and crystal structures

Cited by 4 publications

References 56 publications

Copper-Based Two-Dimensional Metal–Organic Frameworks for Fenton-like Photocatalytic Degradation of Methylene Blue under UV and Sunlight Irradiation

Copper-Based Two-Dimensional Metal–Organic Frameworks for Fenton-like Photocatalytic Degradation of Methylene Blue under UV and Sunlight Irradiation

Regulation of Structure and Magnetic Properties for Nickel(II)/Cobalt(II) Coordination Polymers with 1,4‐Bis(imidazole‐1‐ylmethyl)benzene Ligand

RETRACTED:Treatment effects and mechanisms of Cu(II) coordination polymer in hypotension after anesthesia

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