Synthesis, crystal structure and magnetic properties of an oxalato-bridged dinickel(II)complex containing a macrocyclic ligand

Jin Kui Tang; En Qing Gao; Lei Zhang; Dai Zheng Liao; Zong Hui Jiang; Shi Ping Yan

doi:10.1080/0095870290020838

Synthesis, crystal structure and magnetic properties of an oxalato-bridged dinickel(II)complex containing a macrocyclic ligand

Jin Kui Tang, En Qing Gao, Lei Zhang, Dai Zheng Liao, Zong Hui Jiang, Shi Ping Yan

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

14 Scopus citations

Abstract

A new binuclear nickel(II) complex [Ni(μ-C₂O₄)(rac-cth)₂] (ClO₄)₂ [rac-cth = rac-5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane] has been prepared and its structure determined. It consists of centrosymmetric [Ni(μ-C₂O₄)(rac-cth)₂]²⁺ cations separated by perchlorate anions, with a centre of symmetry lying in the middle of the C-C bond of the bis-bidentate oxalate bridge. The tetraazamacrocycle adopts a folded conformation around the nickel atom, which is six coordinated in a distorted octahedral arrangement. Variable temperature magnetic susceptibility measurements (4-300 K) suggest a moderate intramolecular antiferromagnetic interaction between the metal ions (J = -34.0 cm^-1, g = 2.07).

Original language	English
Pages (from-to)	527-535
Number of pages	9
Journal	Journal of Coordination Chemistry
Volume	55
Issue number	5
DOIs	https://doi.org/10.1080/0095870290020838
State	Published - 2002
Externally published	Yes

Keywords

Binuclear nickel(II) complexes
Crystal structure
Macrocyclic ligands
Magnetic properties

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10.1080/0095870290020838

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@article{8925710c119a4ee1898ddb97c7a268e0,

title = "Synthesis, crystal structure and magnetic properties of an oxalato-bridged dinickel(II)complex containing a macrocyclic ligand",

abstract = "A new binuclear nickel(II) complex [Ni(μ-C2O4)(rac-cth)2] (ClO4)2 [rac-cth = rac-5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane] has been prepared and its structure determined. It consists of centrosymmetric [Ni(μ-C2O4)(rac-cth)2]2+ cations separated by perchlorate anions, with a centre of symmetry lying in the middle of the C-C bond of the bis-bidentate oxalate bridge. The tetraazamacrocycle adopts a folded conformation around the nickel atom, which is six coordinated in a distorted octahedral arrangement. Variable temperature magnetic susceptibility measurements (4-300 K) suggest a moderate intramolecular antiferromagnetic interaction between the metal ions (J = -34.0 cm-1, g = 2.07).",

keywords = "Binuclear nickel(II) complexes, Crystal structure, Macrocyclic ligands, Magnetic properties",

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

year = "2002",

doi = "10.1080/0095870290020838",

language = "英语",

volume = "55",

pages = "527--535",

journal = "Journal of Coordination Chemistry",

issn = "0095-8972",

publisher = "Taylor and Francis Ltd.",

number = "5",

}

TY - JOUR

T1 - Synthesis, crystal structure and magnetic properties of an oxalato-bridged dinickel(II)complex containing a macrocyclic ligand

AU - Tang, Jin Kui

AU - Gao, En Qing

AU - Zhang, Lei

AU - Liao, Dai Zheng

AU - Jiang, Zong Hui

AU - Yan, Shi Ping

PY - 2002

Y1 - 2002

N2 - A new binuclear nickel(II) complex [Ni(μ-C2O4)(rac-cth)2] (ClO4)2 [rac-cth = rac-5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane] has been prepared and its structure determined. It consists of centrosymmetric [Ni(μ-C2O4)(rac-cth)2]2+ cations separated by perchlorate anions, with a centre of symmetry lying in the middle of the C-C bond of the bis-bidentate oxalate bridge. The tetraazamacrocycle adopts a folded conformation around the nickel atom, which is six coordinated in a distorted octahedral arrangement. Variable temperature magnetic susceptibility measurements (4-300 K) suggest a moderate intramolecular antiferromagnetic interaction between the metal ions (J = -34.0 cm-1, g = 2.07).

AB - A new binuclear nickel(II) complex [Ni(μ-C2O4)(rac-cth)2] (ClO4)2 [rac-cth = rac-5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane] has been prepared and its structure determined. It consists of centrosymmetric [Ni(μ-C2O4)(rac-cth)2]2+ cations separated by perchlorate anions, with a centre of symmetry lying in the middle of the C-C bond of the bis-bidentate oxalate bridge. The tetraazamacrocycle adopts a folded conformation around the nickel atom, which is six coordinated in a distorted octahedral arrangement. Variable temperature magnetic susceptibility measurements (4-300 K) suggest a moderate intramolecular antiferromagnetic interaction between the metal ions (J = -34.0 cm-1, g = 2.07).

KW - Binuclear nickel(II) complexes

KW - Crystal structure

KW - Macrocyclic ligands

KW - Magnetic properties

UR - https://www.scopus.com/pages/publications/0036295767

U2 - 10.1080/0095870290020838

DO - 10.1080/0095870290020838

M3 - 文章

AN - SCOPUS:0036295767

SN - 0095-8972

VL - 55

SP - 527

EP - 535

JO - Journal of Coordination Chemistry

JF - Journal of Coordination Chemistry

IS - 5

ER -

Synthesis, crystal structure and magnetic properties of an oxalato-bridged dinickel(II)complex containing a macrocyclic ligand

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Keywords

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