Effect of the counter-anion on the structural and magnetic properties of a copper(II) complex with 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6- (methylthio)phenol

J. Manzur; H. Mora; V. Paredes-García; A. Vega; M. A. Novak

doi:10.1016/j.poly.2013.01.005

Effect of the counter-anion on the structural and magnetic properties of a copper(II) complex with 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6- (methylthio)phenol

J. Manzur, H. Mora, V. Paredes-García, A. Vega, M. A. Novak

Exact Sciences School

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

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Abstract

A new 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6-(methylthio)phenol copper^II perchlorate, complex, [Cu₂(μ-SL) ₂](ClO₄)₂ (1), was synthesized and magnetically and structurally characterized. The complex consists of two similar but not equivalent [Cu₂(μ-SL)₂]²⁺ bimetallic cations designed as P and Q. Cation P has a square-base pyramidal cupric centre bonded to an approximately trigonal bipyramidal one, while cation Q has two equivalent square-base pyramidal copper centres, related by an inversion center. The cupric centres in both units are bridged by two phenolate oxygen atoms from two deprotonated HSL molecules, defining a central Cu₂O₂ core. Each Cu^II centre has a N₃O₂ coordination sphere. Magnetic studies done for (1) show an overall weak antiferromagnetic behavior. The best fit of the experimental data was obtained using a modified Bleaney-Bowers equation with g₁ = g₂ = 2.05, J_P = -13.4 cm^-1 and J_Q = +5.22 cm^-1 for P and Q, respectively. The properties of the new complex are compared to those reported for the hexafluorophosphate complex with the same ligand, in terms of the effect of the distortion caused by the use of a different anion.

Original language	English
Pages (from-to)	180-185
Number of pages	6
Journal	Polyhedron
Volume	51
Issue number	1
DOIs	https://doi.org/10.1016/j.poly.2013.01.005
Publication status	Published - 4 Mar 2013

Keywords

Counteranion effect
Dicopper(II) complex
Magnetism
Structure

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.poly.2013.01.005

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title = "Effect of the counter-anion on the structural and magnetic properties of a copper(II) complex with 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6- (methylthio)phenol",

abstract = "A new 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6-(methylthio)phenol copperII perchlorate, complex, [Cu2(μ-SL) 2](ClO4)2 (1), was synthesized and magnetically and structurally characterized. The complex consists of two similar but not equivalent [Cu2(μ-SL)2]2+ bimetallic cations designed as P and Q. Cation P has a square-base pyramidal cupric centre bonded to an approximately trigonal bipyramidal one, while cation Q has two equivalent square-base pyramidal copper centres, related by an inversion center. The cupric centres in both units are bridged by two phenolate oxygen atoms from two deprotonated HSL molecules, defining a central Cu2O2 core. Each CuII centre has a N3O2 coordination sphere. Magnetic studies done for (1) show an overall weak antiferromagnetic behavior. The best fit of the experimental data was obtained using a modified Bleaney-Bowers equation with g1 = g2 = 2.05, JP = -13.4 cm-1 and JQ = +5.22 cm-1 for P and Q, respectively. The properties of the new complex are compared to those reported for the hexafluorophosphate complex with the same ligand, in terms of the effect of the distortion caused by the use of a different anion.",

keywords = "Counteranion effect, Dicopper(II) complex, Magnetism, Structure",

author = "J. Manzur and H. Mora and V. Paredes-Garc{\'i}a and A. Vega and Novak, {M. A.}",

year = "2013",

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T1 - Effect of the counter-anion on the structural and magnetic properties of a copper(II) complex with 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6- (methylthio)phenol

AU - Manzur, J.

AU - Mora, H.

AU - Paredes-García, V.

AU - Vega, A.

AU - Novak, M. A.

PY - 2013/3/4

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N2 - A new 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6-(methylthio)phenol copperII perchlorate, complex, [Cu2(μ-SL) 2](ClO4)2 (1), was synthesized and magnetically and structurally characterized. The complex consists of two similar but not equivalent [Cu2(μ-SL)2]2+ bimetallic cations designed as P and Q. Cation P has a square-base pyramidal cupric centre bonded to an approximately trigonal bipyramidal one, while cation Q has two equivalent square-base pyramidal copper centres, related by an inversion center. The cupric centres in both units are bridged by two phenolate oxygen atoms from two deprotonated HSL molecules, defining a central Cu2O2 core. Each CuII centre has a N3O2 coordination sphere. Magnetic studies done for (1) show an overall weak antiferromagnetic behavior. The best fit of the experimental data was obtained using a modified Bleaney-Bowers equation with g1 = g2 = 2.05, JP = -13.4 cm-1 and JQ = +5.22 cm-1 for P and Q, respectively. The properties of the new complex are compared to those reported for the hexafluorophosphate complex with the same ligand, in terms of the effect of the distortion caused by the use of a different anion.

AB - A new 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6-(methylthio)phenol copperII perchlorate, complex, [Cu2(μ-SL) 2](ClO4)2 (1), was synthesized and magnetically and structurally characterized. The complex consists of two similar but not equivalent [Cu2(μ-SL)2]2+ bimetallic cations designed as P and Q. Cation P has a square-base pyramidal cupric centre bonded to an approximately trigonal bipyramidal one, while cation Q has two equivalent square-base pyramidal copper centres, related by an inversion center. The cupric centres in both units are bridged by two phenolate oxygen atoms from two deprotonated HSL molecules, defining a central Cu2O2 core. Each CuII centre has a N3O2 coordination sphere. Magnetic studies done for (1) show an overall weak antiferromagnetic behavior. The best fit of the experimental data was obtained using a modified Bleaney-Bowers equation with g1 = g2 = 2.05, JP = -13.4 cm-1 and JQ = +5.22 cm-1 for P and Q, respectively. The properties of the new complex are compared to those reported for the hexafluorophosphate complex with the same ligand, in terms of the effect of the distortion caused by the use of a different anion.

KW - Counteranion effect

KW - Dicopper(II) complex

KW - Magnetism

KW - Structure

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Effect of the counter-anion on the structural and magnetic properties of a copper(II) complex with 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6- (methylthio)phenol

Abstract

Keywords

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