Synthesis and characterization of new heterometallic cyanido complexes based on [Co(CN)6]3− building blocks: crystal structure of [Cu2(N-bishydeten)2Co(CN)6]·3H2O having a strong antiferromagnetic exchange

Korkmaz, Şengül Aslan; Karadağ, Ahmet; Yerli, Yusuf; Soylu, Mustafa Serkan

doi:10.1039/c4nj00737a

Cited by 19 publications

(9 citation statements)

References 48 publications

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“…The angles that prove the distortion of the geometry are O1–Cu–N2 (158.3(2)°), N1–Cu–O5 (175.9(2)°) and N3–Cu–O3 (164.7(2)°). Despite the variation in distances, the values found are still in agreement with the literature: Cu–O (deprotonated alcohol) 1.905 Å, 1.897 Å and 1.906 Å; for Cu–N (pyridine) 1.922 Å, 1.966 Å, 2.252 Å, 1.937 Å, 1.995 Å, 2.001 Å, 2.015 Å; for Cu–NH (oxazolidine) 2.074 Å, and 2.01 Å; for Cu–O (protonated alcohol) 2.402 Å, 1.9777 Å, 2.383 Å, 2.292 Å, 2.488 Å, 2.502 Å; N–Cu–O 172.87° 168.96°, 173.74°, 174.52° …”

Section: Resultssupporting

confidence: 89%

Oxazolidine copper complexes: Synthesis, characterization and superoxide dismutase activity of copper(II) complexes with oxazolidine ligands derived from hydroxyquinoline carboxaldehyde

Ceolin

Siqueira

Martins

et al. 2018

Applied Organom Chemis

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ProcThis work describes the synthesis of copper(II) complexes, their identification using spectroscopic and electrochemical methods, structural characterization with X-ray diffraction and density functional theory calculations (DFT), as well as their catalytic activity mimicking that of superoxide dismutase. Structural analysis revealed the formation of complexes with cyclization of ligands L1 and L2 with the formation of a heterocycle, 1,3-oxazolidine. The DFT calculations confirmed this trend by stabilizing with lower energy. In addition, evaluations of mimetic enzymatic activity of complexes C1, C2, C3 and C4 revealed promising IC 50 values compared to other results seen in the literature (IC 50 = 0.22, 0.328, 0.55 and 0.92). Also, calf thymus DNA interactive experiments using UV-visible spectroscopy were conducted in the presence of the copper(II) complexes.

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Section: Resultssupporting

confidence: 89%

Oxazolidine copper complexes: Synthesis, characterization and superoxide dismutase activity of copper(II) complexes with oxazolidine ligands derived from hydroxyquinoline carboxaldehyde

Ceolin

Siqueira

Martins

et al. 2018

Applied Organom Chemis

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“…Also, Figure 1 exhibits various characteristic absorption bands that confirm the presence of the N,N-bishydeten ligand, which coordinates to the metal centers via its NH2 and OH groups. The tentative assignments of the recorded wavenumbers of the C1-C6 compounds are in good agreement with the FT-IR spectra of the compounds synthesized and characterized in our previous studies [16][17][18].…”

Section: Ft-ir Spectrasupporting

confidence: 87%

“…coordination compounds [16][17][18]. These compounds were synthesized according to the procedure published before.…”

Section: Synthesis Of C1-c6mentioning

confidence: 99%

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Six coordination compounds: mode of cytotoxic action and biological evaluation

Aydın

Korkmaz

2016

J. Turk. Chem. Soc., Sect. A: Chem.

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anti-proliferative activity against human cervical cancer (HeLa), human colon cancer (HT29), rat glioma (C6) and African green monkey kidney (Vero) cell lines. The DNA/BSA binding affinities of these compounds were also elucidated by spectroscopic titrations, displacement experiments, and electrophoresis measurements. Studies on cancerous cells revealed that C1, C2, C4 and C6 have exhibited the significant antitumor activity and inhibited tumor progression during testing cell lines and showed high solubility in the solvent. The results of absorbance and emission spectra data have revealed that the complexes interact with the DNA via groove binding mode of interaction. Overall, these compounds have been found to demonstrate effective antiproliferative activity against the cancer cell lines, indicating that they are a potent candidate for preclinical or clinical studies.

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“…A large number of metal complexes have been extensively synthesized in this half century, focusing on homo-or heteronuclear metal complexes [1,2]. On the other hand, polynuclear complexes are expected to provide a variety of physical and chemical properties such as magnetism [3][4][5], electric conductivity [6], homo-and hetero-geneous catalysts [7]. Polynuclear complexes are the compounds containing multifunctional ligands with electronic structures which provide unique electronic properties.…”

Section: Introductionmentioning

confidence: 99%

SYNTHESES, STRUCTURES AND PHYSICAL PROPERTIES OF CYANIDE-BRIDGED M(II)−Ni(II) BIMETALLIC COMPLEXES WITH 2-PYRIDINEETHANOL (M(II) = Fe, Co and Ni)

Sayın¹,

Kürkçüoğlu²

2016

AUBTD-A

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In this study, cyanide complexes with chemical formula [M(hepH)2Ni(μ-CN)2(CN)2] (hepH = 2-pyridineethanol; M = Fe(II), Co(II) and Ni(II); abbreviated to hereafter M-hepH-Ni) were obtained for the first time. The structures of these complexes were determined by using FT-IR and Raman spectroscopies, thermal and elemental analyses. The electrical and magnetic properties of the complexes were investigated by four-probe and Evans methods, respectively. Vibration assignments are obtained for all the observed bands and the spectral feature has been shown supported to the structure of complexes. Thermal behaviors of these complexes were examined using TG, DTG and DTA curves in the temperature range 30-700 °C in the static air atmosphere. According to thermal analysis curves, it has seen that neutral ligands (hepH) are released and cyanide ligands are decomposed in the complexes, followed usual decomposition mechanism. The final decomposition products are found to be the corresponding metal oxides. The magnetic measurements of the complexes are compared with experimental and theoretical values of the magnetic moment. Furthermore, Fe-hepH-Ni, Co-hepH-Ni and Ni-hepH-Ni complexes are determined to be paramagnetic.

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Synthesis and characterization of new heterometallic cyanido complexes based on [Co(CN)₆]³⁻ building blocks: crystal structure of [Cu₂(N-bishydeten)₂Co(CN)₆]·3H₂O having a strong antiferromagnetic exchange

Abstract: The hexacyanidocobalt(iii)-based four new coordination compounds have been synthesized and characterized by various techniques. The polymeric C2 having 148.3 Å3 lattice spacing among these complexes have shown very strong antiferromagnetic interaction.

Cited by 19 publications

References 48 publications

Oxazolidine copper complexes: Synthesis, characterization and superoxide dismutase activity of copper(II) complexes with oxazolidine ligands derived from hydroxyquinoline carboxaldehyde

Oxazolidine copper complexes: Synthesis, characterization and superoxide dismutase activity of copper(II) complexes with oxazolidine ligands derived from hydroxyquinoline carboxaldehyde

Six coordination compounds: mode of cytotoxic action and biological evaluation

SYNTHESES, STRUCTURES AND PHYSICAL PROPERTIES OF CYANIDE-BRIDGED M(II)−Ni(II) BIMETALLIC COMPLEXES WITH 2-PYRIDINEETHANOL (M(II) = Fe, Co and Ni)

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