2D-Coordination polymers based on 1<i>H</i>-indazole-4-carboxylic acid and transition metal ions: magnetic, luminescence and biological properties

Garcı́a-Valdivia, Antonio A.; Zabala-Lekuona, Andoni; Ramírez-Rodríguez, Gloria Belén; Delgado-López, José Manuel; Fernández, Belén; Cepeda, Javier; Rodríguez-Diéguez, Antonio

doi:10.1039/d0ce00544d

Cited by 8 publications

(2 citation statements)

References 53 publications

(23 reference statements)

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“…The values obtained for the α and λ parameters are also in agreement with other high spin Co 2+ structures in the literature. − The Δ parameter is in the upper limit for this model, which is compatible with a highly distorted octahedral environment of the metal ion, as described in the structural section. Since this model is based on different empirical expressions depending on the sign of the Δ parameter, we have also fitted the experimental data with the expression considering positive values of Δ (Figure S5 in the Supporting Information).…”

Section: Resultssupporting

confidence: 88%

Structure, Electronic, Magnetic, and Gas Adsorption Properties of Zinc(II) and Cobalt(II) Coordination Polymers Assembled from Isonicotinylhydrazine and Trimesic Acid

et al. 2020

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The properties of two coordination polymers formed by the coordination of isonicotinylhydrazine (INH) and 1,3,5-bezenetricarboxylic acid (H3BTC) to Zn2+ or Co2+ ions were studied by a combination of single-crystal X-ray diffraction analysis and density functional calculations. The coordination polymer formed with Co2+ ion, [Co(INH)(HBTC)](CH3CN)·H2O, named as 1, forms a 2D coordination polymer presenting potential voids in its structure, whereas the coordination polymer formed with Zn2+ ion, [Zn1.5(INH)(BTC)(H2O2)]·3H2O, named as 2, forms a 1D ladder-shaped structure. The magnetic study carried out on 1 showed a weak antiferromagnetic coupling, and this property was considered theoretically. Additionally, the electronic properties of 1 were studied by theoretical substitution of Co2+ for Zn2+ to give 1Zn. Compound 2 was also studied by theoretical computational calculations showing quite different electronic properties related to 1. Even composed by different ions, both compounds are semiconductors. The theoretical adsorption of O2 and N2 molecules on 1 and 1Zn was also performed. The results indicated that O2 molecules are better adsorbed in the magnetic compound, highlighting a new important property to be observed on gas adsorption.

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Section: Resultssupporting

confidence: 88%

Structure, Electronic, Magnetic, and Gas Adsorption Properties of Zinc(II) and Cobalt(II) Coordination Polymers Assembled from Isonicotinylhydrazine and Trimesic Acid

et al. 2020

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“…In a comparative scale, the ligand spectrum shows two well-defined maxima (not that easily identified for the compounds) and relatively higher intensity (Figure S2, SI). It is worth noticing that the observed luminescence resembles to that shown by other previously reported CPs containing other isomers of indazolecarboxylates [35,36]. must be attributed to the fact that 2 possesses the protonated form of the ligand (HL whereas it is completely deprotonated (L 2− ) in 1.…”

Section: Luminescence Propertiessupporting

confidence: 81%

Photoluminescent Coordination Polymers Based on Group 12 Metals and 1H-Indazole-6-Carboxylic Acid

et al. 2021

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Two new coordination polymers (CPs) based on Zn(II) and Cd(II) and 1H-indazole-6-carboxylic acid (H2L) of general formulae [Zn(L)(H2O)]n (1) and [Cd2(HL)4]n (2) have been synthesized and fully characterized by elemental analyses, Fourier transformed infrared spectroscopy and single crystal X-ray diffraction. The results indicate that compound 1 possesses double chains in its structure whereas 2 exhibits a 3D network. The intermolecular interactions, including hydrogen bonds, C–H···π and π···π stacking interactions, stabilize both crystal structures. Photoluminescence (PL) properties have shown that compounds 1 and 2 present similar emission spectra compared to the free-ligand. The emission spectra are also studied from the theoretical point of view by means of time-dependent density-functional theory (TD-DFT) calculations to confirm that ligand-centred π-π* electronic transitions govern emission of compound 1 and 2. Finally, the PL properties are also studied in aqueous solution to explore the stability and emission capacity of the compounds.

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Anion-directed structural diversification in four new Cd(II) compounds of a flexible polyether-based dicarboxylic acid

Sakshi

Khullar²

2022

Inorganic Chemistry Communications

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2D-Coordination polymers based on 1H-indazole-4-carboxylic acid and transition metal ions: magnetic, luminescence and biological properties

Abstract: Five novel multifunctional coordination polymers (CPs) based on 1H-indazole-4-carboxylic acid are reported. These complexes, the first examples of CPs with this novel ligand, show interesting magnetic, luminescence and biological properties.

Cited by 8 publications

References 53 publications

Structure, Electronic, Magnetic, and Gas Adsorption Properties of Zinc(II) and Cobalt(II) Coordination Polymers Assembled from Isonicotinylhydrazine and Trimesic Acid

Structure, Electronic, Magnetic, and Gas Adsorption Properties of Zinc(II) and Cobalt(II) Coordination Polymers Assembled from Isonicotinylhydrazine and Trimesic Acid

Photoluminescent Coordination Polymers Based on Group 12 Metals and 1H-Indazole-6-Carboxylic Acid

Anion-directed structural diversification in four new Cd(II) compounds of a flexible polyether-based dicarboxylic acid

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