Synthesis and magnetism of the first tetranuclear copper(II)-iron(III) complexes of macrocyclic oxamides

En Qing Gao; Guang Ming Yang; Jin Kui Tang; Dai Zheng Liao; Zong Hui Jiang; Shi Ping Yan

doi:10.1016/S0277-5387(99)00297-1

Synthesis and magnetism of the first tetranuclear copper(II)-iron(III) complexes of macrocyclic oxamides

En Qing Gao
, Guang Ming Yang
, Jin Kui Tang
, Dai Zheng Liao^*
, Zong Hui Jiang
, Shi Ping Yan

^*Corresponding author for this work

Nankai University
Nanjing University

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

40 Scopus citations

Abstract

Four novel tetranuclear macrocyclic complexes of the formula [(CuLⁱ)₃Fe](ClO₄)₃·3H ₂O (i=1-4, Lⁱ are the dianions of the [14]N₄ and [15]N₄ macrocyclic oxamides, namely 2,3-dioxo-5,6:13,14-dibenzo-7,12-bis(ethoxycarbonyl)-1,4,8,11- tetraazacyclotetradeca-7,11-diene, 2,3-dioxo-5,6:13,14-dibenzo-9-methyl-7,12-bis(ethoxycarbonyl)-1,4,8,11- tetraazacyclotetradeca-7,11-diene and 2,3-dioxo-5,6:14,15-dibenzo-7,13-bis(ethoxycarbonyl)-1,4,8,12- tetraazacyclotetradeca-7,12-diene] have been prepared and characterized. These complexes are the first examples of oxamido-bridged Cu(II)-Fe(III) heterometallic species. Cryomagnetic studies on [(CuL¹)₃Fe](ClO₄)₃·3H ₂O (1) and [(CuL³)₃Fe](ClO₄)₃·3H ₂O (3) (77-300 K) revealed that the Cu(II) and Fe(III) ions interact antiferromagnetically through the oxamido bridge, with the exchange integral J=-30.8 cm^-1 for 1 and J=-28.7 cm^-1 for 3 based on Ĥ=-2J ∑Ŝ_iŜ_j. The interaction parameters have been compared with that of the related [Cu₃Mn] compound.

Original language	English
Pages (from-to)	3643-3646
Number of pages	4
Journal	Polyhedron
Volume	18
Issue number	27
DOIs	https://doi.org/10.1016/S0277-5387(99)00297-1
State	Published - 10 Dec 1999
Externally published	Yes

Keywords

Copper(II)-Iron(III) complexes
Macrocyclic compound
Magnetism
Oxamide
Tetranuclear complexes

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10.1016/S0277-5387(99)00297-1

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@article{1f36d363cd304acab83c04d9b3de4f3b,

title = "Synthesis and magnetism of the first tetranuclear copper(II)-iron(III) complexes of macrocyclic oxamides",

abstract = "Four novel tetranuclear macrocyclic complexes of the formula [(CuLi)3Fe](ClO4)3·3H 2O (i=1-4, Li are the dianions of the [14]N4 and [15]N4 macrocyclic oxamides, namely 2,3-dioxo-5,6:13,14-dibenzo-7,12-bis(ethoxycarbonyl)-1,4,8,11- tetraazacyclotetradeca-7,11-diene, 2,3-dioxo-5,6:13,14-dibenzo-9-methyl-7,12-bis(ethoxycarbonyl)-1,4,8,11- tetraazacyclotetradeca-7,11-diene and 2,3-dioxo-5,6:14,15-dibenzo-7,13-bis(ethoxycarbonyl)-1,4,8,12- tetraazacyclotetradeca-7,12-diene] have been prepared and characterized. These complexes are the first examples of oxamido-bridged Cu(II)-Fe(III) heterometallic species. Cryomagnetic studies on [(CuL1)3Fe](ClO4)3·3H 2O (1) and [(CuL3)3Fe](ClO4)3·3H 2O (3) (77-300 K) revealed that the Cu(II) and Fe(III) ions interact antiferromagnetically through the oxamido bridge, with the exchange integral J=-30.8 cm-1 for 1 and J=-28.7 cm-1 for 3 based on Ĥ=-2J ∑ŜiŜj. The interaction parameters have been compared with that of the related [Cu3Mn] compound.",

keywords = "Copper(II)-Iron(III) complexes, Macrocyclic compound, Magnetism, Oxamide, Tetranuclear complexes",

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

year = "1999",

month = dec,

day = "10",

doi = "10.1016/S0277-5387(99)00297-1",

language = "英语",

volume = "18",

pages = "3643--3646",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier Ltd",

number = "27",

}

TY - JOUR

T1 - Synthesis and magnetism of the first tetranuclear copper(II)-iron(III) complexes of macrocyclic oxamides

AU - Gao, En Qing

AU - Yang, Guang Ming

AU - Tang, Jin Kui

AU - Liao, Dai Zheng

AU - Jiang, Zong Hui

AU - Yan, Shi Ping

PY - 1999/12/10

Y1 - 1999/12/10

N2 - Four novel tetranuclear macrocyclic complexes of the formula [(CuLi)3Fe](ClO4)3·3H 2O (i=1-4, Li are the dianions of the [14]N4 and [15]N4 macrocyclic oxamides, namely 2,3-dioxo-5,6:13,14-dibenzo-7,12-bis(ethoxycarbonyl)-1,4,8,11- tetraazacyclotetradeca-7,11-diene, 2,3-dioxo-5,6:13,14-dibenzo-9-methyl-7,12-bis(ethoxycarbonyl)-1,4,8,11- tetraazacyclotetradeca-7,11-diene and 2,3-dioxo-5,6:14,15-dibenzo-7,13-bis(ethoxycarbonyl)-1,4,8,12- tetraazacyclotetradeca-7,12-diene] have been prepared and characterized. These complexes are the first examples of oxamido-bridged Cu(II)-Fe(III) heterometallic species. Cryomagnetic studies on [(CuL1)3Fe](ClO4)3·3H 2O (1) and [(CuL3)3Fe](ClO4)3·3H 2O (3) (77-300 K) revealed that the Cu(II) and Fe(III) ions interact antiferromagnetically through the oxamido bridge, with the exchange integral J=-30.8 cm-1 for 1 and J=-28.7 cm-1 for 3 based on Ĥ=-2J ∑ŜiŜj. The interaction parameters have been compared with that of the related [Cu3Mn] compound.

AB - Four novel tetranuclear macrocyclic complexes of the formula [(CuLi)3Fe](ClO4)3·3H 2O (i=1-4, Li are the dianions of the [14]N4 and [15]N4 macrocyclic oxamides, namely 2,3-dioxo-5,6:13,14-dibenzo-7,12-bis(ethoxycarbonyl)-1,4,8,11- tetraazacyclotetradeca-7,11-diene, 2,3-dioxo-5,6:13,14-dibenzo-9-methyl-7,12-bis(ethoxycarbonyl)-1,4,8,11- tetraazacyclotetradeca-7,11-diene and 2,3-dioxo-5,6:14,15-dibenzo-7,13-bis(ethoxycarbonyl)-1,4,8,12- tetraazacyclotetradeca-7,12-diene] have been prepared and characterized. These complexes are the first examples of oxamido-bridged Cu(II)-Fe(III) heterometallic species. Cryomagnetic studies on [(CuL1)3Fe](ClO4)3·3H 2O (1) and [(CuL3)3Fe](ClO4)3·3H 2O (3) (77-300 K) revealed that the Cu(II) and Fe(III) ions interact antiferromagnetically through the oxamido bridge, with the exchange integral J=-30.8 cm-1 for 1 and J=-28.7 cm-1 for 3 based on Ĥ=-2J ∑ŜiŜj. The interaction parameters have been compared with that of the related [Cu3Mn] compound.

KW - Copper(II)-Iron(III) complexes

KW - Macrocyclic compound

KW - Magnetism

KW - Oxamide

KW - Tetranuclear complexes

UR - https://www.scopus.com/pages/publications/0001289311

U2 - 10.1016/S0277-5387(99)00297-1

DO - 10.1016/S0277-5387(99)00297-1

M3 - 文章

AN - SCOPUS:0001289311

SN - 0277-5387

VL - 18

SP - 3643

EP - 3646

JO - Polyhedron

JF - Polyhedron

IS - 27

ER -

Synthesis and magnetism of the first tetranuclear copper(II)-iron(III) complexes of macrocyclic oxamides

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Keywords

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