Synthesis and structural characterisation of a novel polynuclear copper ribbon-like network. A study of its magnetic properties between 4 and 300 K

Mairi F. Haddow; Hulya Kara; Gareth R. Owen

doi:10.1016/j.ica.2009.03.037

Synthesis and structural characterisation of a novel polynuclear copper ribbon-like network. A study of its magnetic properties between 4 and 300 K

Mairi F. Haddow, Hulya Kara^*, Gareth R. Owen

^*Corresponding author for this work

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

16 Citations (Scopus)

Abstract

A new route to {Cu₂(κ¹-pyNH₂)₂(μ-OMe)₂Cl₂}_n (pyNH₂ = 2-aminopyridine) (3) is reported. Structural characterisation reveals the presence of methoxide and chloride bridging units within the complex which support close copper-copper bonding interactions resulting in interesting magnetic properties. The variable-temperature (4-300 K) magnetic susceptibility data of the complex were interpreted with the dimer law using the molecular field approximation. The results obtained indicate a weak antiferromagnetic (zJ′ = -15 cm^-1) inter-chain interaction through the chloro-bridge. A relatively strong antiferromagnetic interaction, transmitted through the oxygen-bridge, with an exchange coupling of 2J = -305 cm^-1, which dominates the magnetic properties of the title complex.

Original language	English
Pages (from-to)	3502-3506
Number of pages	5
Journal	Inorganica Chimica Acta
Volume	362
Issue number	10
DOIs	https://doi.org/10.1016/j.ica.2009.03.037
Publication status	Published - 1 Aug 2009
Externally published	Yes

Keywords

Antiferromagnetic interaction
Copper(II) complex
Crystal structure
Magnetic properties
Methoxide bridge

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10.1016/j.ica.2009.03.037Licence: CC BY-NC-ND

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title = "Synthesis and structural characterisation of a novel polynuclear copper ribbon-like network. A study of its magnetic properties between 4 and 300 K",

abstract = "A new route to {Cu2(κ1-pyNH2)2(μ-OMe)2Cl2}n (pyNH2 = 2-aminopyridine) (3) is reported. Structural characterisation reveals the presence of methoxide and chloride bridging units within the complex which support close copper-copper bonding interactions resulting in interesting magnetic properties. The variable-temperature (4-300 K) magnetic susceptibility data of the complex were interpreted with the dimer law using the molecular field approximation. The results obtained indicate a weak antiferromagnetic (zJ′ = -15 cm-1) inter-chain interaction through the chloro-bridge. A relatively strong antiferromagnetic interaction, transmitted through the oxygen-bridge, with an exchange coupling of 2J = -305 cm-1, which dominates the magnetic properties of the title complex.",

keywords = "Antiferromagnetic interaction, Copper(II) complex, Crystal structure, Magnetic properties, Methoxide bridge",

author = "Haddow, {Mairi F.} and Hulya Kara and Owen, {Gareth R.}",

year = "2009",

month = aug,

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doi = "10.1016/j.ica.2009.03.037",

language = "English",

volume = "362",

pages = "3502--3506",

journal = "Inorganica Chimica Acta",

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publisher = "Elsevier",

number = "10",

}

TY - JOUR

T1 - Synthesis and structural characterisation of a novel polynuclear copper ribbon-like network. A study of its magnetic properties between 4 and 300 K

AU - Haddow, Mairi F.

AU - Kara, Hulya

AU - Owen, Gareth R.

PY - 2009/8/1

Y1 - 2009/8/1

N2 - A new route to {Cu2(κ1-pyNH2)2(μ-OMe)2Cl2}n (pyNH2 = 2-aminopyridine) (3) is reported. Structural characterisation reveals the presence of methoxide and chloride bridging units within the complex which support close copper-copper bonding interactions resulting in interesting magnetic properties. The variable-temperature (4-300 K) magnetic susceptibility data of the complex were interpreted with the dimer law using the molecular field approximation. The results obtained indicate a weak antiferromagnetic (zJ′ = -15 cm-1) inter-chain interaction through the chloro-bridge. A relatively strong antiferromagnetic interaction, transmitted through the oxygen-bridge, with an exchange coupling of 2J = -305 cm-1, which dominates the magnetic properties of the title complex.

AB - A new route to {Cu2(κ1-pyNH2)2(μ-OMe)2Cl2}n (pyNH2 = 2-aminopyridine) (3) is reported. Structural characterisation reveals the presence of methoxide and chloride bridging units within the complex which support close copper-copper bonding interactions resulting in interesting magnetic properties. The variable-temperature (4-300 K) magnetic susceptibility data of the complex were interpreted with the dimer law using the molecular field approximation. The results obtained indicate a weak antiferromagnetic (zJ′ = -15 cm-1) inter-chain interaction through the chloro-bridge. A relatively strong antiferromagnetic interaction, transmitted through the oxygen-bridge, with an exchange coupling of 2J = -305 cm-1, which dominates the magnetic properties of the title complex.

KW - Antiferromagnetic interaction

KW - Copper(II) complex

KW - Crystal structure

KW - Magnetic properties

KW - Methoxide bridge

U2 - 10.1016/j.ica.2009.03.037

DO - 10.1016/j.ica.2009.03.037

M3 - Article

AN - SCOPUS:67349154496

SN - 0020-1693

VL - 362

SP - 3502

EP - 3506

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - 10

ER -

Synthesis and structural characterisation of a novel polynuclear copper ribbon-like network. A study of its magnetic properties between 4 and 300 K

Abstract

Keywords

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