Synthesis, structural characterization, electrochemistry and spectroelectrochemistry of dinuclear copper(II) metal complexes stabilized by a tetradentate NOOO salicylaldimine ligands

E. Tas; I. H. Onal; I. Yilmaz; A. Kilic; M. Durgun

doi:10.1016/j.molstruc.2009.02.024

Synthesis, structural characterization, electrochemistry and spectroelectrochemistry of dinuclear copper(II) metal complexes stabilized by a tetradentate NOOO salicylaldimine ligands

E. Tas^*, I. H. Onal, I. Yilmaz, A. Kilic, M. Durgun

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The synthesis, structure, spectroscopic and electro-spectrochemical properties of salicylaldimine Schiff-base ligands (L_nH) (n = 1, 2, and 3) (L₁H = N-[2-amino-8-hydroxyquinoline]-salicylaldimine, L₂H = N-[2-amino-8-hydroxyquinoline]-5-bromosalicylaldimine and L₃H = N-[2-amino-8-hydroxyquinoline]-5-methoxysalicylaldimine), respectively, and their dinuclear copper(II) complexes [Cu₂(L_n)₂] are described. Three new dissymmetric tetradentate salicylaldimine ligands containing a donor set of NOOO were prepared by reaction of 2-amino-8-hydroxyquinoline with different salicylaldehydes. The dinuclear copper(II) metal complexes of these ligands were synthesized by treating an ethanolic solution of the appropriate ligand with an equimolar amount of Cu(Ac)₂·H₂O. The ligands and their copper complexes were characterized by FT-IR, UV-vis, ¹H NMR, elemental analysis, molar conductivity, mass spectra and thermal analysis methods in addition to magnetic susceptibility and spectroelectrochemical techniques. The reaction of these ligands in a 1:1 mole ratio with copper(II) acetate afforded dinuclear Cu(II) metal complexes. The room temperature magnetic moments of [Cu₂(L_n)₂] complexes are found between 1.12 and 1.28 BM for per Cu(II) molecule.

Original language	English
Pages (from-to)	69-77
Number of pages	9
Journal	Journal of Molecular Structure
Volume	927
Issue number	1-3
DOIs	https://doi.org/10.1016/j.molstruc.2009.02.024
Publication status	Published - 18 Jun 2009

Funding

This work have been supported, in part, by the HUBAK Fund (Project No. 689) of Harran University, Sanliurfa, Turkey.

Funders	Funder number
Harran Üniversitesi

Keywords

Dinuclear Cu(II) complexes
Electrochemistry
Salicylaldimine
Spectroelectrochemistry
Thermal properties

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10.1016/j.molstruc.2009.02.024

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@article{a559aeda719c4be194eb4d0b8ae0fa69,

title = "Synthesis, structural characterization, electrochemistry and spectroelectrochemistry of dinuclear copper(II) metal complexes stabilized by a tetradentate NOOO salicylaldimine ligands",

abstract = "The synthesis, structure, spectroscopic and electro-spectrochemical properties of salicylaldimine Schiff-base ligands (LnH) (n = 1, 2, and 3) (L1H = N-[2-amino-8-hydroxyquinoline]-salicylaldimine, L2H = N-[2-amino-8-hydroxyquinoline]-5-bromosalicylaldimine and L3H = N-[2-amino-8-hydroxyquinoline]-5-methoxysalicylaldimine), respectively, and their dinuclear copper(II) complexes [Cu2(Ln)2] are described. Three new dissymmetric tetradentate salicylaldimine ligands containing a donor set of NOOO were prepared by reaction of 2-amino-8-hydroxyquinoline with different salicylaldehydes. The dinuclear copper(II) metal complexes of these ligands were synthesized by treating an ethanolic solution of the appropriate ligand with an equimolar amount of Cu(Ac)2·H2O. The ligands and their copper complexes were characterized by FT-IR, UV-vis, 1H NMR, elemental analysis, molar conductivity, mass spectra and thermal analysis methods in addition to magnetic susceptibility and spectroelectrochemical techniques. The reaction of these ligands in a 1:1 mole ratio with copper(II) acetate afforded dinuclear Cu(II) metal complexes. The room temperature magnetic moments of [Cu2(Ln)2] complexes are found between 1.12 and 1.28 BM for per Cu(II) molecule.",

keywords = "Dinuclear Cu(II) complexes, Electrochemistry, Salicylaldimine, Spectroelectrochemistry, Thermal properties",

author = "E. Tas and Onal, {I. H.} and I. Yilmaz and A. Kilic and M. Durgun",

year = "2009",

month = jun,

day = "18",

doi = "10.1016/j.molstruc.2009.02.024",

language = "English",

volume = "927",

pages = "69--77",

journal = "Journal of Molecular Structure",

issn = "0022-2860",

publisher = "Elsevier B.V.",

number = "1-3",

}

Synthesis, structural characterization, electrochemistry and spectroelectrochemistry of dinuclear copper(II) metal complexes stabilized by a tetradentate NOOO salicylaldimine ligands. / Tas, E.; Onal, I. H.; Yilmaz, I. et al.
In: Journal of Molecular Structure, Vol. 927, No. 1-3, 18.06.2009, p. 69-77.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Synthesis, structural characterization, electrochemistry and spectroelectrochemistry of dinuclear copper(II) metal complexes stabilized by a tetradentate NOOO salicylaldimine ligands

AU - Tas, E.

AU - Onal, I. H.

AU - Yilmaz, I.

AU - Kilic, A.

AU - Durgun, M.

PY - 2009/6/18

Y1 - 2009/6/18

N2 - The synthesis, structure, spectroscopic and electro-spectrochemical properties of salicylaldimine Schiff-base ligands (LnH) (n = 1, 2, and 3) (L1H = N-[2-amino-8-hydroxyquinoline]-salicylaldimine, L2H = N-[2-amino-8-hydroxyquinoline]-5-bromosalicylaldimine and L3H = N-[2-amino-8-hydroxyquinoline]-5-methoxysalicylaldimine), respectively, and their dinuclear copper(II) complexes [Cu2(Ln)2] are described. Three new dissymmetric tetradentate salicylaldimine ligands containing a donor set of NOOO were prepared by reaction of 2-amino-8-hydroxyquinoline with different salicylaldehydes. The dinuclear copper(II) metal complexes of these ligands were synthesized by treating an ethanolic solution of the appropriate ligand with an equimolar amount of Cu(Ac)2·H2O. The ligands and their copper complexes were characterized by FT-IR, UV-vis, 1H NMR, elemental analysis, molar conductivity, mass spectra and thermal analysis methods in addition to magnetic susceptibility and spectroelectrochemical techniques. The reaction of these ligands in a 1:1 mole ratio with copper(II) acetate afforded dinuclear Cu(II) metal complexes. The room temperature magnetic moments of [Cu2(Ln)2] complexes are found between 1.12 and 1.28 BM for per Cu(II) molecule.

AB - The synthesis, structure, spectroscopic and electro-spectrochemical properties of salicylaldimine Schiff-base ligands (LnH) (n = 1, 2, and 3) (L1H = N-[2-amino-8-hydroxyquinoline]-salicylaldimine, L2H = N-[2-amino-8-hydroxyquinoline]-5-bromosalicylaldimine and L3H = N-[2-amino-8-hydroxyquinoline]-5-methoxysalicylaldimine), respectively, and their dinuclear copper(II) complexes [Cu2(Ln)2] are described. Three new dissymmetric tetradentate salicylaldimine ligands containing a donor set of NOOO were prepared by reaction of 2-amino-8-hydroxyquinoline with different salicylaldehydes. The dinuclear copper(II) metal complexes of these ligands were synthesized by treating an ethanolic solution of the appropriate ligand with an equimolar amount of Cu(Ac)2·H2O. The ligands and their copper complexes were characterized by FT-IR, UV-vis, 1H NMR, elemental analysis, molar conductivity, mass spectra and thermal analysis methods in addition to magnetic susceptibility and spectroelectrochemical techniques. The reaction of these ligands in a 1:1 mole ratio with copper(II) acetate afforded dinuclear Cu(II) metal complexes. The room temperature magnetic moments of [Cu2(Ln)2] complexes are found between 1.12 and 1.28 BM for per Cu(II) molecule.

KW - Dinuclear Cu(II) complexes

KW - Electrochemistry

KW - Salicylaldimine

KW - Spectroelectrochemistry

KW - Thermal properties

UR - http://www.scopus.com/inward/record.url?scp=67349181867&partnerID=8YFLogxK

U2 - 10.1016/j.molstruc.2009.02.024

DO - 10.1016/j.molstruc.2009.02.024

M3 - Article

AN - SCOPUS:67349181867

SN - 0022-2860

VL - 927

SP - 69

EP - 77

JO - Journal of Molecular Structure

JF - Journal of Molecular Structure

IS - 1-3

ER -

Synthesis, structural characterization, electrochemistry and spectroelectrochemistry of dinuclear copper(II) metal complexes stabilized by a tetradentate NOOO salicylaldimine ligands

Abstract

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Keywords

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