Synthesis and magnetic properties of the Ho(BA)2AA complex monomer and its copolymer with MMA

Lian Hui Wang; Zhi Kuan Chen; En Tang Kang; Wen Gong Zhang; Wei Huang

doi:10.1016/S0379-6779(00)00277-0

Synthesis and magnetic properties of the Ho(BA)₂AA complex monomer and its copolymer with MMA

Lian Hui Wang, Zhi Kuan Chen, En Tang Kang, Wen Gong Zhang, Wei Huang

科研成果: 期刊稿件 › 文章 › 同行评审

6 引用（Scopus）

摘要

A new Ho(III) ternary complex was synthesized by the reaction of holmium isopropoxide with benzoylacetone (BA) and acrylic acid (AA) and its copolymer with methyl methacrylate (MMA) was prepared through free radical initiation polymerization. The complex monomer and the corresponding copolymer were characterized by elemental analysis, FT-IR, UV-VIS spectroscopy and thermal gravimetric analysis (TGA). The dependence of magnetic susceptibility of the monomer and polymer on the temperature (4-300 K) was measured. The effective magnetic moment of both monomer Ho(BA)₂AA and copolymer MMA-co-AAHo(BA)₂ decreased with the temperature descending in 4-200 K and the values of χ_M were found to obey the Curie-Weiss law. These results indicate the existence of weak antiferromagnetic interaction between Ho(III) ions in the copolymer, which may be ascribed to a superexchange interaction between the Ho(III) ions through coordination atoms.

源语言	英语
页（从-至）	39-43
页数	5
期刊	Synthetic Metals
卷	118
期	1-3
DOI	https://doi.org/10.1016/S0379-6779(00)00277-0
出版状态	已出版 - 1 3月 2001
已对外发布	是

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title = "Synthesis and magnetic properties of the Ho(BA)2AA complex monomer and its copolymer with MMA",

abstract = "A new Ho(III) ternary complex was synthesized by the reaction of holmium isopropoxide with benzoylacetone (BA) and acrylic acid (AA) and its copolymer with methyl methacrylate (MMA) was prepared through free radical initiation polymerization. The complex monomer and the corresponding copolymer were characterized by elemental analysis, FT-IR, UV-VIS spectroscopy and thermal gravimetric analysis (TGA). The dependence of magnetic susceptibility of the monomer and polymer on the temperature (4-300 K) was measured. The effective magnetic moment of both monomer Ho(BA)2AA and copolymer MMA-co-AAHo(BA)2 decreased with the temperature descending in 4-200 K and the values of χM were found to obey the Curie-Weiss law. These results indicate the existence of weak antiferromagnetic interaction between Ho(III) ions in the copolymer, which may be ascribed to a superexchange interaction between the Ho(III) ions through coordination atoms.",

author = "Wang, {Lian Hui} and Chen, {Zhi Kuan} and Kang, {En Tang} and Zhang, {Wen Gong} and Wei Huang",

year = "2001",

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doi = "10.1016/S0379-6779(00)00277-0",

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T1 - Synthesis and magnetic properties of the Ho(BA)2AA complex monomer and its copolymer with MMA

AU - Wang, Lian Hui

AU - Chen, Zhi Kuan

AU - Kang, En Tang

AU - Zhang, Wen Gong

AU - Huang, Wei

PY - 2001/3/1

Y1 - 2001/3/1

N2 - A new Ho(III) ternary complex was synthesized by the reaction of holmium isopropoxide with benzoylacetone (BA) and acrylic acid (AA) and its copolymer with methyl methacrylate (MMA) was prepared through free radical initiation polymerization. The complex monomer and the corresponding copolymer were characterized by elemental analysis, FT-IR, UV-VIS spectroscopy and thermal gravimetric analysis (TGA). The dependence of magnetic susceptibility of the monomer and polymer on the temperature (4-300 K) was measured. The effective magnetic moment of both monomer Ho(BA)2AA and copolymer MMA-co-AAHo(BA)2 decreased with the temperature descending in 4-200 K and the values of χM were found to obey the Curie-Weiss law. These results indicate the existence of weak antiferromagnetic interaction between Ho(III) ions in the copolymer, which may be ascribed to a superexchange interaction between the Ho(III) ions through coordination atoms.

AB - A new Ho(III) ternary complex was synthesized by the reaction of holmium isopropoxide with benzoylacetone (BA) and acrylic acid (AA) and its copolymer with methyl methacrylate (MMA) was prepared through free radical initiation polymerization. The complex monomer and the corresponding copolymer were characterized by elemental analysis, FT-IR, UV-VIS spectroscopy and thermal gravimetric analysis (TGA). The dependence of magnetic susceptibility of the monomer and polymer on the temperature (4-300 K) was measured. The effective magnetic moment of both monomer Ho(BA)2AA and copolymer MMA-co-AAHo(BA)2 decreased with the temperature descending in 4-200 K and the values of χM were found to obey the Curie-Weiss law. These results indicate the existence of weak antiferromagnetic interaction between Ho(III) ions in the copolymer, which may be ascribed to a superexchange interaction between the Ho(III) ions through coordination atoms.

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DO - 10.1016/S0379-6779(00)00277-0

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SN - 0379-6779

VL - 118

SP - 39

EP - 43

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Synthesis and magnetic properties of the Ho(BA)2AA complex monomer and its copolymer with MMA

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Synthesis and magnetic properties of the Ho(BA)₂AA complex monomer and its copolymer with MMA