Synthesis, crystal structures, and magnetic properties of two Cu (II)-complexes based on <i>in situ</i> generated 5-NO<sub>2</sub>-2-hydroxyisophthalic acid

Wu, Ya‐Pan; Mu, Yi-Qiang; Bai, Liang; Guo, Song; Zhao, Jun; Li, Dong‐Sheng

doi:10.1080/00958972.2014.927062

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…Hydrogen-bond magnetic interactions have been reported previously for other Cu(II) complexes and polymers, including malonate or its derivatives and have been described exhibiting both antiferromagnetic behavior [32,41,42] and ferromagnetic exchange [26,29,40,[43][44][45]. Therefore, according to the above mentioned, the obtained values for the exchange coupling constant (vide supra) for the three complexes are in agreement with those recently reported for Cu(II) complexes having hydrogen bonding or other intermolecular interactions [46][47][48][49][50][51].…”

Section: Magnetic Propertiessupporting

confidence: 90%

1D and 3D supramolecular structures exhibiting weak ferromagnetism in three Cu(II) complexes based on malonato and di-alkyl-2,2’-bipyridines

Jaramillo-García

Téllez-López

Martínez-Domínguez

et al. 2016

Journal of Coordination Chemistry

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Escudero (2016) 1D and 3D supramolecular structures exhibiting weak ferromagnetism in three Cu(II) complexes based on malonato and di-alkyl-2,2'-bipyridines, Journal of Coordination Chemistry, 69:9, 1525-1540, ABSTRACTThree new Cu(II) complexes composed of malonato (mal), methylmalonato (memal), 4,4′-di-tert-butyl-2,2′-bipyridine (tbpy) and 5,5′-dimethyl-2,2′-bipyridine (mebpy) ligands, Cu(H 2 O)(mal)(tbpy) (1), Cu(H 2 O)(memal)(tbpy) (2) and Cu 4 (H 2 O) 4 (memal) 4 (mebpy) 4 ·11H 2 O (3) were synthesized by simple onepot solution reactions at ambient conditions. Single-crystal X-ray diffraction analyses reveal that the Cu(II) ions exhibit a distorted five-coordinate square pyramidal geometry. These three complexes display supramolecular arrays due to hydrogen-bonding interactions. Complexes 1 and 2 show 1-D supramolecular structures; 1 forms a double-ion chain, unlike 2, which only generates a single-ion chain. In 3, there are two identical monomers in the asymmetric unit with Z″ = 2; its high number of noncoordinated water molecules, along with hydrogen-bonding interactions between aqua ligand and memal ligand, generate a supramolecular tetramer, which mimics to produce a 3-D supramolecular framework. Besides this fascinating and yet uncommon crystallographic phenomenon in 3, the structural differences found in these complexes arise from the substituted groups in the malonato dianion and in the bipyridine ligands. These compounds exhibit weak ferromagnetic-exchange interactions. ARTICLE HISTORY

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Section: Magnetic Propertiessupporting

confidence: 90%

1D and 3D supramolecular structures exhibiting weak ferromagnetism in three Cu(II) complexes based on malonato and di-alkyl-2,2’-bipyridines

Jaramillo-García

Téllez-López

Martínez-Domínguez

et al. 2016

Journal of Coordination Chemistry

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“…The same structures were published earlier for the complexes formed by 2,6-carboxyphenolate or derivatives with Cu(II) (e.g. [24][25][26]). Fe(III) and Al(III) cannot form such species probably because of the high charge repulsion among the two metal ions.…”

Section: Metal/ligand Complexesmentioning

confidence: 53%

4-Hydroxy-3,5-pyridinedicarboxylic Acids: Synthesis, Complexation Properties Towards Fe(III), Al(III), Cu(II), Zn(II), Human Serum Albumin, and Cellular Toxicity

et al. 2018

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4-hydroxy-3,5-pyridinedicarboxylic acid (DQ58) and 4-hydroxy-1-methyl-3,5pyridinedicarboxylic acid (DQ71508) have been synthesized, and their Fe(III), Al(III), Cu(II), and Zn(II) coordination properties have been studied by potentiometry, UV/Vis (in the case of Fe(III), Al(III), Cu(II)), 1 H-NMR (for Al(III)), and EPR (for Cu(II)). Thermodynamic results were used to model the extent of the toxic metal ions decorporation (Fe(III) or Al(III)) in the presence of the essential metal ion (Cu(II) or Zn(II)). DQ58 and DQ71508 were demonstrated to interact with human serum albumin (HSA), which is assumed to be the main serum transporter of the chelators, and binding constants have been obtained by ultrafiltration. IC50 values of 5.185 mM and 1.033 mM were collected after 24 and 48 h of treatment with DQ71508 towards human embryonic kidney HEK-293 cells, demonstrating the relatively low cytotoxicity of this compound. According to these results, both DQ58 and DQ71508 seem to be potential candidates for Fe chelation therapy, and DQ58 is a better Fe(III) chelator than DQ71508.

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Coordination Properties of Hydroxyisophthalic Acids: Topological Correlations, Synthesis, Structural Analysis, and Properties of New Complexes

Соколов

Вологжанина

Barabanova

et al. 2021

Chemistry A European J

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Hydroxyisophthalic acids are valuable polytopic ligands for the design of functional materials based on coordination polymers due to the variety of charges and coordination modes they possess. Herein, we describe the synthesis, thermal stability, nonlinear optical (NLO) and spectroscopic properties of five novel coordination com-, and one salt, (NH 4 ) 2 L • 2H 2 O, with 4,5,6-trihydroxyisophthalic acid (H 2 L), which has not been tested in assembling crystalline coordination networks before. The peculiarities of the structural organization of the compounds were analyzed and compared with those for other hydroxyisophthalates. The coordination properties of hydroxyisophthalic acids were studied from the topological point of view, and a comparative topological analysis of coordination and H-bonded networks was performed. Structural correlations revealed in this study could be useful for the design of hydroxyisophthalate-based coordination networks, including porous metal-organic frameworks, proton conductors, and NLO materials.

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Synthesis, crystal structures, and magnetic properties of two Cu (II)-complexes based on in situ generated 5-NO₂-2-hydroxyisophthalic acid

Cited by 4 publications

References 28 publications

1D and 3D supramolecular structures exhibiting weak ferromagnetism in three Cu(II) complexes based on malonato and di-alkyl-2,2’-bipyridines

1D and 3D supramolecular structures exhibiting weak ferromagnetism in three Cu(II) complexes based on malonato and di-alkyl-2,2’-bipyridines

4-Hydroxy-3,5-pyridinedicarboxylic Acids: Synthesis, Complexation Properties Towards Fe(III), Al(III), Cu(II), Zn(II), Human Serum Albumin, and Cellular Toxicity

Coordination Properties of Hydroxyisophthalic Acids: Topological Correlations, Synthesis, Structural Analysis, and Properties of New Complexes

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Synthesis, crystal structures, and magnetic properties of two Cu (II)-complexes based on in situ generated 5-NO2-2-hydroxyisophthalic acid

Cited by 4 publications

References 28 publications

1D and 3D supramolecular structures exhibiting weak ferromagnetism in three Cu(II) complexes based on malonato and di-alkyl-2,2’-bipyridines

1D and 3D supramolecular structures exhibiting weak ferromagnetism in three Cu(II) complexes based on malonato and di-alkyl-2,2’-bipyridines

4-Hydroxy-3,5-pyridinedicarboxylic Acids: Synthesis, Complexation Properties Towards Fe(III), Al(III), Cu(II), Zn(II), Human Serum Albumin, and Cellular Toxicity

Coordination Properties of Hydroxyisophthalic Acids: Topological Correlations, Synthesis, Structural Analysis, and Properties of New Complexes

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Synthesis, crystal structures, and magnetic properties of two Cu (II)-complexes based on in situ generated 5-NO₂-2-hydroxyisophthalic acid