Complexes of Metals With Hydrazone Hydrazide Salicylic Acid

Fatullayeva, P.A.

doi:10.32737/2221-8688-2021-2-79-83

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…3). The shift of the bands in the complexes suggests that the metal ion is coordinated by two oxygen atoms and one nitrogen atom of the aminodiacetic fragment [16][17].…”

Section: Discussion Of the Resultsmentioning

confidence: 98%

SYNTHESIS OF COMPLEXES OF Cu(II) AND VO(IV) WITH HYDRAZIDE OF MALEIC AND HYDRAZINEDIACETIC ACID

Guliyeva,

Fatullayeva,

Jalaladdinov

et al. 2023

Chemical Problems

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The work demonstrated that hydrazide of maleic and hydrazine diacetic acid(L-2,2'-(2-(3- carboxyacryloyl)hydrazine-1,1-diil)diacetic acid) forms mononuclear complexes [CuL(H2O)2] and [VОL(H2O)2]. The structure and physical properties of these complex compounds have been studied by IR, UV spectroscopy and thermogravimetric methods of analysis. On the basis of the data obtained, the structure of the complexes was proposed, in which the metal ion is coordinated by two oxygen atoms and one nitrogen atom of the aminodiacetic fragment. In the electronic spectra of the copper complex, there are absorption bands of the transition at ~240 nm (related to charge transfer) and one d-d transition 740 nm. In the electronic spectra of the vanadyl complex, several absorption bands are observed at 300 nm (inflection), ~625 nm (inflection), and 780 nm, which can be attributed to d–d transitions of the VO2+in the low symmetry ligand environment. The five-coordinated structure of the complex is carried out by two oxygen atoms of two water molecules. The EPR spectrum of the polycrystalline [CuL(H2O)2] complex at room temperature indicates a low symmetry of the complex and has three g -factor values: g1=2.30, g2=2.22; g3=2.11. Additionally, a hyperfine structure is observed due to 63.64Cu nuclei (nuclear spin 3/2) with a splitting constant of 80 G.

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“…3). The shift of the bands in the complexes suggests that the metal ion is coordinated by two oxygen atoms and one nitrogen atom of the aminodiacetic fragment [16][17].…”

Section: Discussion Of the Resultsmentioning

confidence: 98%

SYNTHESIS OF COMPLEXES OF Cu(II) AND VO(IV) WITH HYDRAZIDE OF MALEIC AND HYDRAZINEDIACETIC ACID

Guliyeva,

Fatullayeva,

Jalaladdinov

et al. 2023

Chemical Problems

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“…1.8646 (10) 1.9329 (10) 1.2992 (19) 168.55 (5) 176.95 (5) 87.36(4) Cu1-O(3) 1.9291 (10) Cu1-N(1) 1.9038( 12 The bactericidal and fungicidal activity of the obtained compounds It is known that 8-hydroxyquinoline is used as an antimicrobial additive in cutting uids [31]. However, the activity of 8-aminoquinoline as an antimicrobial additive is weak, i.e., the spectrum of its antimicrobial action is limited and microorganisms adapt to it very quickly.…”

Section: Cu1-o(1)mentioning

confidence: 99%

“…Previously, we have found that metal complexes of hydrazones of salicylic acid derivatives have signi cant inhibitory and urease activity [19]. At the same time, succinic and nicotinic acid hydrazones and their complexes have high bactericidal and fungicidal activity [20,21].…”

Section: Introductionmentioning

confidence: 99%

Copper(II) Complex with (E)-N ′ (3,5-di-tert-butyl-2-hydroxybenzilidene)-2-Hydroxybenzohydrazide

Fatullayeva,

Medjidov,

Ismayilov

et al. 2023

Preprint

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Annotation A mononuclear complex of copper(II) with (E)-N′(3,5-di-tert-butyl-2-hydroxybenzilidene) -2-hydroxybenzohydrazide (H3sahz)2 was synthesized. The structure of the complex [Cu(H2sahz)(DMF)] was studied by elemental analysis, IR and EPR spectroscopy, and monocrystal X-ray analysis. It was shown that the complex has a square planar structure, in which the ligand is tridentate and dianionic. The coordination of the Cu(II) ion is carried out by the oxygen atom of the ditertbutyl fragment, the azomethine nitrogen atom, the hydrazide oxygen atom in the enol form, and the oxygen of the DMF molecule. In aqueous solutions, the DMF molecule in the complex is easily exchanged for a water molecule. The obtained ligand and complex possess high bactericidal and fungicidal activity. The results of these studies indicated that the metal complexes exhibit a stronger antibacterial and antifungal efficiency than their corresponding Schiff base ligands.

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“…[14,15]. Previously, we found that metal complexes of hydrazones of salicylic acid derivatives have significant inhibitory and urease activity [16], succinic and nicotinic acid hydrazones and their complexes have high bactericidal and fungicidal activity [17,18].…”

mentioning

confidence: 99%

Copper(II) Complex With (E)-N′(3,5-Di-Tert-Butil-2-Hedroxybenzilidene)-2-Hydroxybenzohydrazide.

Fatullayeva,

Mejidov,

Abdullayev

et al. 2023

Preprint

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A mononuclear complex of copper(II) with (E)-N′(3,5-di-tert-butil-2-hedroxybenzilidene)-2-hydroxybenzohydrazide (H3sahz)2 was synthesized. The structure of the complex [Cu(H2sahz)(DMF)] was studied by elemental analysis, IR and EPR spectroscopy, and X-ray structure analysis. It was shown that complex has square planar structure, in which the ligand is tridentate and dianionic. The obtained ligand and complex posses high bactericidal and fungicidal activity.

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Complexes of Metals With Hydrazone Hydrazide Salicylic Acid

Cited by 4 publications

References 7 publications

SYNTHESIS OF COMPLEXES OF Cu(II) AND VO(IV) WITH HYDRAZIDE OF MALEIC AND HYDRAZINEDIACETIC ACID

SYNTHESIS OF COMPLEXES OF Cu(II) AND VO(IV) WITH HYDRAZIDE OF MALEIC AND HYDRAZINEDIACETIC ACID

Copper(II) Complex with (E)-N ′ (3,5-di-tert-butyl-2-hydroxybenzilidene)-2-Hydroxybenzohydrazide

Copper(II) Complex With (E)-N′(3,5-Di-Tert-Butil-2-Hedroxybenzilidene)-2-Hydroxybenzohydrazide.

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