Synthesis, crystal structure and magnetic properties of a terephthalato-bridged binuclear nickel(II) complex

En Qing Gao; Qi Hua Zhao; Jin Kui Tang; Dai Zheng Liao; Zong Hui Jiang; Shi Ping Yan

doi:10.1080/00958970211878

Synthesis, crystal structure and magnetic properties of a terephthalato-bridged binuclear nickel(II) complex

En Qing Gao, Qi Hua Zhao, Jin Kui Tang, Dai Zheng Liao, Zong Hui Jiang, Shi Ping Yan

Nankai University

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

17 Scopus citations

Abstract

A new terephthalato-bridged binuclear nickel(II) complex with a tetraazamacrocyclic compound as the terminal ligand, [Ni₂(cth)₂(μ-TPHA)](ClO₄)₂ (1) [cth=rac-5,7,7,12,14,14- hexamethyl-1,4,8,11-tetraazacyclotetradecane] has been synthesized and characterized. According to X-ray crystallographic studies on the solvated species 1·2CH₃OH, each Ni(II) ion lies in a distorted octahedral environment, and the terephthalato ligand bridges two Ni(II) ions in a bis bidentate fashion. Cryomagnetic measurements revealed Curie-Weiss behaviour with θ=-1.4K. Such behaviour may be due to a very weak intramolecular superexchange interaction through the extended bridge, a weak intermolecular exchange interaction or the local zero-field splitting of Ni(II) ions.

Original language	English
Pages (from-to)	205-213
Number of pages	9
Journal	Journal of Coordination Chemistry
Volume	55
Issue number	2
DOIs	https://doi.org/10.1080/00958970211878
State	Published - 2002
Externally published	Yes

Keywords

Crystal structure
Magnetic properties
Nickel(II)
Terephthalato ion

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10.1080/00958970211878

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@article{9514cae6bb634d39b5da9754525088ec,

title = "Synthesis, crystal structure and magnetic properties of a terephthalato-bridged binuclear nickel(II) complex",

abstract = "A new terephthalato-bridged binuclear nickel(II) complex with a tetraazamacrocyclic compound as the terminal ligand, [Ni2(cth)2(μ-TPHA)](ClO4)2 (1) [cth=rac-5,7,7,12,14,14- hexamethyl-1,4,8,11-tetraazacyclotetradecane] has been synthesized and characterized. According to X-ray crystallographic studies on the solvated species 1·2CH3OH, each Ni(II) ion lies in a distorted octahedral environment, and the terephthalato ligand bridges two Ni(II) ions in a bis bidentate fashion. Cryomagnetic measurements revealed Curie-Weiss behaviour with θ=-1.4K. Such behaviour may be due to a very weak intramolecular superexchange interaction through the extended bridge, a weak intermolecular exchange interaction or the local zero-field splitting of Ni(II) ions.",

keywords = "Crystal structure, Magnetic properties, Nickel(II), Terephthalato ion",

author = "Gao, \{En Qing\} and Zhao, \{Qi Hua\} and Tang, \{Jin Kui\} and Liao, \{Dai Zheng\} and Jiang, \{Zong Hui\} and Yan, \{Shi Ping\}",

year = "2002",

doi = "10.1080/00958970211878",

language = "英语",

volume = "55",

pages = "205--213",

journal = "Journal of Coordination Chemistry",

issn = "0095-8972",

publisher = "Taylor and Francis Ltd.",

number = "2",

}

TY - JOUR

T1 - Synthesis, crystal structure and magnetic properties of a terephthalato-bridged binuclear nickel(II) complex

AU - Gao, En Qing

AU - Zhao, Qi Hua

AU - Tang, Jin Kui

AU - Liao, Dai Zheng

AU - Jiang, Zong Hui

AU - Yan, Shi Ping

PY - 2002

Y1 - 2002

N2 - A new terephthalato-bridged binuclear nickel(II) complex with a tetraazamacrocyclic compound as the terminal ligand, [Ni2(cth)2(μ-TPHA)](ClO4)2 (1) [cth=rac-5,7,7,12,14,14- hexamethyl-1,4,8,11-tetraazacyclotetradecane] has been synthesized and characterized. According to X-ray crystallographic studies on the solvated species 1·2CH3OH, each Ni(II) ion lies in a distorted octahedral environment, and the terephthalato ligand bridges two Ni(II) ions in a bis bidentate fashion. Cryomagnetic measurements revealed Curie-Weiss behaviour with θ=-1.4K. Such behaviour may be due to a very weak intramolecular superexchange interaction through the extended bridge, a weak intermolecular exchange interaction or the local zero-field splitting of Ni(II) ions.

AB - A new terephthalato-bridged binuclear nickel(II) complex with a tetraazamacrocyclic compound as the terminal ligand, [Ni2(cth)2(μ-TPHA)](ClO4)2 (1) [cth=rac-5,7,7,12,14,14- hexamethyl-1,4,8,11-tetraazacyclotetradecane] has been synthesized and characterized. According to X-ray crystallographic studies on the solvated species 1·2CH3OH, each Ni(II) ion lies in a distorted octahedral environment, and the terephthalato ligand bridges two Ni(II) ions in a bis bidentate fashion. Cryomagnetic measurements revealed Curie-Weiss behaviour with θ=-1.4K. Such behaviour may be due to a very weak intramolecular superexchange interaction through the extended bridge, a weak intermolecular exchange interaction or the local zero-field splitting of Ni(II) ions.

KW - Crystal structure

KW - Magnetic properties

KW - Nickel(II)

KW - Terephthalato ion

UR - https://www.scopus.com/pages/publications/0036308094

U2 - 10.1080/00958970211878

DO - 10.1080/00958970211878

M3 - 文章

AN - SCOPUS:0036308094

SN - 0095-8972

VL - 55

SP - 205

EP - 213

JO - Journal of Coordination Chemistry

JF - Journal of Coordination Chemistry

IS - 2

ER -

Synthesis, crystal structure and magnetic properties of a terephthalato-bridged binuclear nickel(II) complex

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Keywords

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