Synthesis and characterization of new macrocyclic Schiff base derived from 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes

Salih Ilhan; Hamdi Temel; Ismail Yilmaz; Memet Şekerci

doi:10.1016/j.poly.2007.01.015

Synthesis and characterization of new macrocyclic Schiff base derived from 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes

Salih Ilhan, Hamdi Temel^*, Ismail Yilmaz, Memet Şekerci

^*Corresponding author for this work

Department of Chemistry

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

77 Citations (Scopus)

Abstract

A new macrocyclic ligand, 1,3,5-triaza-2,4:7,8:16,17-tribenzo-9,12,15-trioxacyclooktadeca-1,5-dien (L) was synthesized by reaction of 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane. Then, its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes were synthesized by template effect by reaction of 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and Cu(NO₃)₂ · 3H₂O, Ni(NO₃)₂ · 6H₂O, Pb(NO₃)₂, Co(NO₃)₂ · 6H₂O, La(NO₃)₃ · 6H₂O, respectively. The ligand and its metal complexes have been characterized by elemental analysis, IR, ¹H and ¹³C NMR, UV-Vis spectra, magnetic susceptibility, thermal gravimetric analysis, conductivity measurements, mass spectra and cyclic voltammetry. All complexes are diamagnetic and Cu(II) complex is binuclear. The Co(II) was oxidized to Co(III). The comparative electrochemical studies show that the nickel complex exhibited a quasi-reversible one-electron reduction process while copper and cobalt complexes gave irreversible reduction processes in DMSO solution.

Original language	English
Pages (from-to)	2795-2802
Number of pages	8
Journal	Polyhedron
Volume	26
Issue number	12
DOIs	https://doi.org/10.1016/j.poly.2007.01.015
Publication status	Published - 23 Jul 2007

Funding

We are grateful to Dicle University Research Found (DUAPK-03-EF-24) for the support of this research.

Funders	Funder number
Dicle University Research Found	DUAPK-03-EF-24

Keywords

2,6-Diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane
Macrocyclic Schiff base
Macrocyclic Schiff base complexes

Access to Document

10.1016/j.poly.2007.01.015

Fingerprint

Dive into the research topics of 'Synthesis and characterization of new macrocyclic Schiff base derived from 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes'. Together they form a unique fingerprint.

Cite this

@article{c315f5912baa4814bbda13cd10d568c6,

title = "Synthesis and characterization of new macrocyclic Schiff base derived from 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes",

abstract = "A new macrocyclic ligand, 1,3,5-triaza-2,4:7,8:16,17-tribenzo-9,12,15-trioxacyclooktadeca-1,5-dien (L) was synthesized by reaction of 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane. Then, its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes were synthesized by template effect by reaction of 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and Cu(NO3)2 · 3H2O, Ni(NO3)2 · 6H2O, Pb(NO3)2, Co(NO3)2 · 6H2O, La(NO3)3 · 6H2O, respectively. The ligand and its metal complexes have been characterized by elemental analysis, IR, 1H and 13C NMR, UV-Vis spectra, magnetic susceptibility, thermal gravimetric analysis, conductivity measurements, mass spectra and cyclic voltammetry. All complexes are diamagnetic and Cu(II) complex is binuclear. The Co(II) was oxidized to Co(III). The comparative electrochemical studies show that the nickel complex exhibited a quasi-reversible one-electron reduction process while copper and cobalt complexes gave irreversible reduction processes in DMSO solution.",

keywords = "2,6-Diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane, Macrocyclic Schiff base, Macrocyclic Schiff base complexes",

author = "Salih Ilhan and Hamdi Temel and Ismail Yilmaz and Memet {\c S}ekerci",

year = "2007",

month = jul,

day = "23",

doi = "10.1016/j.poly.2007.01.015",

language = "English",

volume = "26",

pages = "2795--2802",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier Ltd",

number = "12",

}

Synthesis and characterization of new macrocyclic Schiff base derived from 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes. / Ilhan, Salih; Temel, Hamdi; Yilmaz, Ismail et al.
In: Polyhedron, Vol. 26, No. 12, 23.07.2007, p. 2795-2802.

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

TY - JOUR

T1 - Synthesis and characterization of new macrocyclic Schiff base derived from 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes

AU - Ilhan, Salih

AU - Temel, Hamdi

AU - Yilmaz, Ismail

AU - Şekerci, Memet

PY - 2007/7/23

Y1 - 2007/7/23

N2 - A new macrocyclic ligand, 1,3,5-triaza-2,4:7,8:16,17-tribenzo-9,12,15-trioxacyclooktadeca-1,5-dien (L) was synthesized by reaction of 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane. Then, its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes were synthesized by template effect by reaction of 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and Cu(NO3)2 · 3H2O, Ni(NO3)2 · 6H2O, Pb(NO3)2, Co(NO3)2 · 6H2O, La(NO3)3 · 6H2O, respectively. The ligand and its metal complexes have been characterized by elemental analysis, IR, 1H and 13C NMR, UV-Vis spectra, magnetic susceptibility, thermal gravimetric analysis, conductivity measurements, mass spectra and cyclic voltammetry. All complexes are diamagnetic and Cu(II) complex is binuclear. The Co(II) was oxidized to Co(III). The comparative electrochemical studies show that the nickel complex exhibited a quasi-reversible one-electron reduction process while copper and cobalt complexes gave irreversible reduction processes in DMSO solution.

AB - A new macrocyclic ligand, 1,3,5-triaza-2,4:7,8:16,17-tribenzo-9,12,15-trioxacyclooktadeca-1,5-dien (L) was synthesized by reaction of 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane. Then, its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes were synthesized by template effect by reaction of 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and Cu(NO3)2 · 3H2O, Ni(NO3)2 · 6H2O, Pb(NO3)2, Co(NO3)2 · 6H2O, La(NO3)3 · 6H2O, respectively. The ligand and its metal complexes have been characterized by elemental analysis, IR, 1H and 13C NMR, UV-Vis spectra, magnetic susceptibility, thermal gravimetric analysis, conductivity measurements, mass spectra and cyclic voltammetry. All complexes are diamagnetic and Cu(II) complex is binuclear. The Co(II) was oxidized to Co(III). The comparative electrochemical studies show that the nickel complex exhibited a quasi-reversible one-electron reduction process while copper and cobalt complexes gave irreversible reduction processes in DMSO solution.

KW - 2,6-Diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane

KW - Macrocyclic Schiff base

KW - Macrocyclic Schiff base complexes

UR - http://www.scopus.com/inward/record.url?scp=34347262077&partnerID=8YFLogxK

U2 - 10.1016/j.poly.2007.01.015

DO - 10.1016/j.poly.2007.01.015

M3 - Article

AN - SCOPUS:34347262077

SN - 0277-5387

VL - 26

SP - 2795

EP - 2802

JO - Polyhedron

JF - Polyhedron

IS - 12

ER -

Synthesis and characterization of new macrocyclic Schiff base derived from 2,6-diaminopyridine and 1,7-bis(2-formylphenyl)-1,4,7-trioxaheptane and its Cu(II), Ni(II), Pb(II), Co(III) and La(III) complexes

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this