Synthesis and magnetic properties of poly(p-phthaloyl-disacetylaceton-ethylenediimine) metal complexes

Yun Pu Wang; Chun Peng Chai; Rong Min Wang

doi:10.1002/pat.100

Synthesis and magnetic properties of poly(p-phthaloyl-disacetylaceton-ethylenediimine) metal complexes

Yun Pu Wang^*, Chun Peng Chai, Rong Min Wang

^*Corresponding author for this work

Northwest Normal University

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

4 Citations (Scopus)

Abstract

Macrocyclic Schiff-base ligand, bisacetylaceton-ethylene-diimine (BAE) and its transition metal complexes M(BAE) (M = Cu²⁺, Ni²⁺) were synthesized. The complexes having characteristics of aromatic systems and well-defined one-dimensional structures, reacted with p-phthaloyl chloride, to obtain polymer complexes. The complexes were characterized by elemental analysis, inductively coupled plasma (ICP), FT-IR, and thermal analysis and show good thermal stability. ESR spectra analysis discovered that there are free radicals in the chain of polymers, indicating that a weak magnetic spin-exchange interaction operates between the metal ions and free radicals. It is found that, as the bridging p-phthaloyl group is able to propagate the magnetic exchange interaction, the polymer complexes show paramagnetic properties by measurement of temperature dependence of the magnetic property, and obey Curie-Weiss law.

Original language	English
Pages (from-to)	11-15
Number of pages	5
Journal	Polymers for Advanced Technologies
Volume	13
Issue number	1
DOIs	https://doi.org/10.1002/pat.100
Publication status	Published - Jan 2002
Externally published	Yes

Keywords

Magnetic properties
Polymer complexes
Schiff-base

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10.1002/pat.100

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title = "Synthesis and magnetic properties of poly(p-phthaloyl-disacetylaceton-ethylenediimine) metal complexes",

abstract = "Macrocyclic Schiff-base ligand, bisacetylaceton-ethylene-diimine (BAE) and its transition metal complexes M(BAE) (M = Cu2+, Ni2+) were synthesized. The complexes having characteristics of aromatic systems and well-defined one-dimensional structures, reacted with p-phthaloyl chloride, to obtain polymer complexes. The complexes were characterized by elemental analysis, inductively coupled plasma (ICP), FT-IR, and thermal analysis and show good thermal stability. ESR spectra analysis discovered that there are free radicals in the chain of polymers, indicating that a weak magnetic spin-exchange interaction operates between the metal ions and free radicals. It is found that, as the bridging p-phthaloyl group is able to propagate the magnetic exchange interaction, the polymer complexes show paramagnetic properties by measurement of temperature dependence of the magnetic property, and obey Curie-Weiss law.",

keywords = "Magnetic properties, Polymer complexes, Schiff-base",

author = "Wang, {Yun Pu} and Chai, {Chun Peng} and Wang, {Rong Min}",

year = "2002",

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T1 - Synthesis and magnetic properties of poly(p-phthaloyl-disacetylaceton-ethylenediimine) metal complexes

AU - Wang, Yun Pu

AU - Chai, Chun Peng

AU - Wang, Rong Min

PY - 2002/1

Y1 - 2002/1

N2 - Macrocyclic Schiff-base ligand, bisacetylaceton-ethylene-diimine (BAE) and its transition metal complexes M(BAE) (M = Cu2+, Ni2+) were synthesized. The complexes having characteristics of aromatic systems and well-defined one-dimensional structures, reacted with p-phthaloyl chloride, to obtain polymer complexes. The complexes were characterized by elemental analysis, inductively coupled plasma (ICP), FT-IR, and thermal analysis and show good thermal stability. ESR spectra analysis discovered that there are free radicals in the chain of polymers, indicating that a weak magnetic spin-exchange interaction operates between the metal ions and free radicals. It is found that, as the bridging p-phthaloyl group is able to propagate the magnetic exchange interaction, the polymer complexes show paramagnetic properties by measurement of temperature dependence of the magnetic property, and obey Curie-Weiss law.

AB - Macrocyclic Schiff-base ligand, bisacetylaceton-ethylene-diimine (BAE) and its transition metal complexes M(BAE) (M = Cu2+, Ni2+) were synthesized. The complexes having characteristics of aromatic systems and well-defined one-dimensional structures, reacted with p-phthaloyl chloride, to obtain polymer complexes. The complexes were characterized by elemental analysis, inductively coupled plasma (ICP), FT-IR, and thermal analysis and show good thermal stability. ESR spectra analysis discovered that there are free radicals in the chain of polymers, indicating that a weak magnetic spin-exchange interaction operates between the metal ions and free radicals. It is found that, as the bridging p-phthaloyl group is able to propagate the magnetic exchange interaction, the polymer complexes show paramagnetic properties by measurement of temperature dependence of the magnetic property, and obey Curie-Weiss law.

KW - Magnetic properties

KW - Polymer complexes

KW - Schiff-base

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U2 - 10.1002/pat.100

DO - 10.1002/pat.100

M3 - Article

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EP - 15

JO - Polymers for Advanced Technologies

JF - Polymers for Advanced Technologies

IS - 1

ER -

Synthesis and magnetic properties of poly(p-phthaloyl-disacetylaceton-ethylenediimine) metal complexes

Abstract

Keywords

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