Unusual trinuclear complex of copper(II) containing a 4′-(3-methyl-2-thienyl)-4,2′: 6′,4″-terpyridine ligand. Structural, spectroscopic, electrochemical and magnetic properties

Dominique Toledo, Guillermo Ahumada, Carolina Manzur, Thierry Roisnel, Octavio Peña, Jean René Hamon, Jean Yves Pivan, Yanko Moreno

Resultado de la investigación: Article

5 Citas (Scopus)

Resumen

We report the synthesis, characterization, crystal and molecular structure as well as the spectroscopic, electrochemical and magnetic properties of an unexpected trinuclear copper(II) complex (1), made of three Cu(2-TTA)2 units (2-TTA = 2-thenoyltrifluoroacetone) bridged by two 4'-(3-methyl-2-thienyl)-4,2′:6′,4″-terpyridine (4-stpy) ligands. The central Cu(II) atom shows an octahedral geometry, while the lateral metal centers present a slightly distorted square pyramidal coordination sphere. It is suggested that the introduction of the relatively bulky substituent groups (2-thienyl and [sbnd]CF3) in the 2-TTA ligand are responsible of this uncommon coordination mode. The magnetic behavior of 1 is reported in terms of a combination of monomer and dimer units, leading to weak antiferromagnetic interaction (J = −1.93 cm−1). The cyclovoltammogram of 1 exhibits, in the cathodic potential region, three redox events due to Cu2+/Cu+ and Cu+/Cu0 redox couples and to the mono-electronic reduction of the 4-stpy ligand.

Idioma originalEnglish
Páginas (desde-hasta)213-221
Número de páginas9
PublicaciónJournal of Molecular Structure
Volumen1146
DOI
EstadoPublished - 15 oct 2017

Huella dactilar

Electrochemical properties
Copper
Magnetic properties
Ligands
Thenoyltrifluoroacetone
Dimers
Molecular structure
Monomers
Crystal structure
Metals
Atoms
Geometry
Oxidation-Reduction

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Inorganic Chemistry

Citar esto

Toledo, Dominique ; Ahumada, Guillermo ; Manzur, Carolina ; Roisnel, Thierry ; Peña, Octavio ; Hamon, Jean René ; Pivan, Jean Yves ; Moreno, Yanko. / Unusual trinuclear complex of copper(II) containing a 4′-(3-methyl-2-thienyl)-4,2′ : 6′,4″-terpyridine ligand. Structural, spectroscopic, electrochemical and magnetic properties. En: Journal of Molecular Structure. 2017 ; Vol. 1146. pp. 213-221.
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abstract = "We report the synthesis, characterization, crystal and molecular structure as well as the spectroscopic, electrochemical and magnetic properties of an unexpected trinuclear copper(II) complex (1), made of three Cu(2-TTA)2 units (2-TTA = 2-thenoyltrifluoroacetone) bridged by two 4'-(3-methyl-2-thienyl)-4,2′:6′,4″-terpyridine (4-stpy) ligands. The central Cu(II) atom shows an octahedral geometry, while the lateral metal centers present a slightly distorted square pyramidal coordination sphere. It is suggested that the introduction of the relatively bulky substituent groups (2-thienyl and [sbnd]CF3) in the 2-TTA ligand are responsible of this uncommon coordination mode. The magnetic behavior of 1 is reported in terms of a combination of monomer and dimer units, leading to weak antiferromagnetic interaction (J = −1.93 cm−1). The cyclovoltammogram of 1 exhibits, in the cathodic potential region, three redox events due to Cu2+/Cu+ and Cu+/Cu0 redox couples and to the mono-electronic reduction of the 4-stpy ligand.",
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Unusual trinuclear complex of copper(II) containing a 4′-(3-methyl-2-thienyl)-4,2′ : 6′,4″-terpyridine ligand. Structural, spectroscopic, electrochemical and magnetic properties. / Toledo, Dominique; Ahumada, Guillermo; Manzur, Carolina; Roisnel, Thierry; Peña, Octavio; Hamon, Jean René; Pivan, Jean Yves; Moreno, Yanko.

En: Journal of Molecular Structure, Vol. 1146, 15.10.2017, p. 213-221.

Resultado de la investigación: Article

TY - JOUR

T1 - Unusual trinuclear complex of copper(II) containing a 4′-(3-methyl-2-thienyl)-4,2′

T2 - 6′,4″-terpyridine ligand. Structural, spectroscopic, electrochemical and magnetic properties

AU - Toledo, Dominique

AU - Ahumada, Guillermo

AU - Manzur, Carolina

AU - Roisnel, Thierry

AU - Peña, Octavio

AU - Hamon, Jean René

AU - Pivan, Jean Yves

AU - Moreno, Yanko

PY - 2017/10/15

Y1 - 2017/10/15

N2 - We report the synthesis, characterization, crystal and molecular structure as well as the spectroscopic, electrochemical and magnetic properties of an unexpected trinuclear copper(II) complex (1), made of three Cu(2-TTA)2 units (2-TTA = 2-thenoyltrifluoroacetone) bridged by two 4'-(3-methyl-2-thienyl)-4,2′:6′,4″-terpyridine (4-stpy) ligands. The central Cu(II) atom shows an octahedral geometry, while the lateral metal centers present a slightly distorted square pyramidal coordination sphere. It is suggested that the introduction of the relatively bulky substituent groups (2-thienyl and [sbnd]CF3) in the 2-TTA ligand are responsible of this uncommon coordination mode. The magnetic behavior of 1 is reported in terms of a combination of monomer and dimer units, leading to weak antiferromagnetic interaction (J = −1.93 cm−1). The cyclovoltammogram of 1 exhibits, in the cathodic potential region, three redox events due to Cu2+/Cu+ and Cu+/Cu0 redox couples and to the mono-electronic reduction of the 4-stpy ligand.

AB - We report the synthesis, characterization, crystal and molecular structure as well as the spectroscopic, electrochemical and magnetic properties of an unexpected trinuclear copper(II) complex (1), made of three Cu(2-TTA)2 units (2-TTA = 2-thenoyltrifluoroacetone) bridged by two 4'-(3-methyl-2-thienyl)-4,2′:6′,4″-terpyridine (4-stpy) ligands. The central Cu(II) atom shows an octahedral geometry, while the lateral metal centers present a slightly distorted square pyramidal coordination sphere. It is suggested that the introduction of the relatively bulky substituent groups (2-thienyl and [sbnd]CF3) in the 2-TTA ligand are responsible of this uncommon coordination mode. The magnetic behavior of 1 is reported in terms of a combination of monomer and dimer units, leading to weak antiferromagnetic interaction (J = −1.93 cm−1). The cyclovoltammogram of 1 exhibits, in the cathodic potential region, three redox events due to Cu2+/Cu+ and Cu+/Cu0 redox couples and to the mono-electronic reduction of the 4-stpy ligand.

KW - 2-Thenoyltrifluoroacetonate

KW - 4,2′:6′,4″-Terpyridine

KW - Copper(II) complex

KW - Crystal structure

KW - Cyclic voltammetry

KW - Magnetic properties

UR - http://www.scopus.com/inward/record.url?scp=85020282473&partnerID=8YFLogxK

U2 - 10.1016/j.molstruc.2017.05.108

DO - 10.1016/j.molstruc.2017.05.108

M3 - Article

AN - SCOPUS:85020282473

VL - 1146

SP - 213

EP - 221

JO - Journal of Molecular Structure

JF - Journal of Molecular Structure

SN - 0022-2860

ER -