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

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

6 Scopus citations

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 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.

Original language	English
Pages (from-to)	39-43
Number of pages	5
Journal	Synthetic Metals
Volume	118
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(00)00277-0
State	Published - 1 Mar 2001
Externally published	Yes

Access to Document

10.1016/S0379-6779(00)00277-0

Cite this

@article{aee8aacfefa34765a0a3ca461bc692a4,

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",

month = mar,

day = "1",

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

language = "英语",

volume = "118",

pages = "39--43",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier B.V.",

number = "1-3",

}

TY - JOUR

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.

UR - http://www.scopus.com/inward/record.url?scp=0035281492&partnerID=8YFLogxK

U2 - 10.1016/S0379-6779(00)00277-0

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

M3 - 文章

AN - SCOPUS:0035281492

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

Abstract

Access to Document

Other files and links

Fingerprint

Cite this