Zinc(II) and cadmium(II) coordination polymers with bis(4-pyridyl)benzylamine: structure and photoluminescence

Jeong, Ah Rim; Min, Kil Sik

doi:10.1007/s10847-021-01058-6

Cited by 2 publications

(3 citation statements)

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“…Unexpectedly, we could observe strong photoluminescence emissions in 1 and 2, even though the polymers have a strong quencher of Cu(II) ion [42,43]. The bpba ligand exhibited emission bands at 346 and 448 nm upon excitation at 300 nm, which were attributed to the π → π* or π → n transitions of the benzene and pyridine groups [44,45]. For the bpba ligand, the intensity of the benzene group was higher than that of the pyridine group in the solid state.…”

Section: Photoluminescence Properties Of 1 Andmentioning

confidence: 82%

“…Interestingly, different behaviors related to quenching of the emissions in 1 and 2 were observed in the solid state. In contrast to 2, the coordination polymer [(bpba)Zn(CH 3 COO) 2 ] n showed a strong emission band at 361 nm without any emission at approximately 460 nm [44]. Therefore, this difference could potentially be utilized to control and select the emission wavelengths for optical materials.…”

Section: Photoluminescence Properties Of 1 Andmentioning

confidence: 99%

“…[(bpba)Zn(CH3COO)2]n showed a strong emission band at 361 nm without any emission at approximately 460 nm [44]. Therefore, this difference could potentially be utilized to control and select the emission wavelengths for optical materials.…”

Section: Photoluminescence Properties Of 1 Andmentioning

confidence: 99%

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Anion-Dependent Cu(II) Coordination Polymers: Geometric, Magnetic and Luminescent Properties

et al. 2022

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A one-dimensional (1D) coordination polymer [Cu2(bpba)(CH3COO)4] (1) and a two-dimensional (2D) coordination polymer [Cu(bpba)2(H2O)(NO3)](NO3)∙2H2O∙MeOH (2) were synthesized by the reaction between Cu(CH3COO)2∙H2O/Cu(NO3)2∙3H2O and bis(4-pyridyl)benzylamine (bpba). The Cu(II) ions of 1 and 2 have distorted-square pyramidal coordination with a paddle-wheel structure and an octahedral geometry, respectively. By coordinating the Cu(II) ions and bpba ligands, 1 and 2 formed zigzag 1D and puckered 2D coordination polymers, respectively. Polymer 1 exhibits strong emissions at 355 and 466 nm, whereas polymer 2 exhibits strong emissions only at 464 nm. The emissions are strongly dependent on the geometry of the Cu(II) ions linked by the bpba and anionic ligands. Polymer 1 exhibits a very strong antiferromagnetic interaction within the paddle-wheel dimer, whereas polymer 2 exhibits a very weak antiferromagnetic interaction through the bpba linkers and/or space.

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