Synthesis, crystal structures, HF-EPR, and magnetic properties of six-coordinate transition metal (Co, Ni, and Cu) compounds with a 4-amino-1,2,4-triazole Schiff-base ligand

We have synthesized a series of transition metal compounds [M(L)(2)(H(2)O)(2)] (M = Co (1), Ni (2), and Cu (3)) by using the 4-amino-1,2,4-triazole Schiff-base ligand via the hydrothermal methods. They are all mononuclear compounds with the octahedral geometry. Direct-current magnetic and HF-EPR mea...

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Autores principales: Zhang, Ya-Jie, Yin, Lei, Li, Jing, Hu, Zhao-Bo, Ouyang, Zhong-Wen, Song, You, Wang, Zhenxing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9051221/
https://www.ncbi.nlm.nih.gov/pubmed/35492139
http://dx.doi.org/10.1039/c9ra10851c
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author Zhang, Ya-Jie
Yin, Lei
Li, Jing
Hu, Zhao-Bo
Ouyang, Zhong-Wen
Song, You
Wang, Zhenxing
author_facet Zhang, Ya-Jie
Yin, Lei
Li, Jing
Hu, Zhao-Bo
Ouyang, Zhong-Wen
Song, You
Wang, Zhenxing
author_sort Zhang, Ya-Jie
collection PubMed
description We have synthesized a series of transition metal compounds [M(L)(2)(H(2)O)(2)] (M = Co (1), Ni (2), and Cu (3)) by using the 4-amino-1,2,4-triazole Schiff-base ligand via the hydrothermal methods. They are all mononuclear compounds with the octahedral geometry. Direct-current magnetic and HF-EPR measurements were combined to reveal the negative D values (–28.78 cm(−1), –10.79 cm(−1)) of complexes 1 and 2, showing the easy-axis magnetic anisotropies of compounds 1 and 2. Applying a dc field of 800 Oe at 2.0 K, the slow magnetic relaxation effects were observed in compound 1, which is a remarkable feature of single-ion magnets.
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spelling pubmed-90512212022-04-29 Synthesis, crystal structures, HF-EPR, and magnetic properties of six-coordinate transition metal (Co, Ni, and Cu) compounds with a 4-amino-1,2,4-triazole Schiff-base ligand Zhang, Ya-Jie Yin, Lei Li, Jing Hu, Zhao-Bo Ouyang, Zhong-Wen Song, You Wang, Zhenxing RSC Adv Chemistry We have synthesized a series of transition metal compounds [M(L)(2)(H(2)O)(2)] (M = Co (1), Ni (2), and Cu (3)) by using the 4-amino-1,2,4-triazole Schiff-base ligand via the hydrothermal methods. They are all mononuclear compounds with the octahedral geometry. Direct-current magnetic and HF-EPR measurements were combined to reveal the negative D values (–28.78 cm(−1), –10.79 cm(−1)) of complexes 1 and 2, showing the easy-axis magnetic anisotropies of compounds 1 and 2. Applying a dc field of 800 Oe at 2.0 K, the slow magnetic relaxation effects were observed in compound 1, which is a remarkable feature of single-ion magnets. The Royal Society of Chemistry 2020-03-31 /pmc/articles/PMC9051221/ /pubmed/35492139 http://dx.doi.org/10.1039/c9ra10851c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Zhang, Ya-Jie
Yin, Lei
Li, Jing
Hu, Zhao-Bo
Ouyang, Zhong-Wen
Song, You
Wang, Zhenxing
Synthesis, crystal structures, HF-EPR, and magnetic properties of six-coordinate transition metal (Co, Ni, and Cu) compounds with a 4-amino-1,2,4-triazole Schiff-base ligand
title Synthesis, crystal structures, HF-EPR, and magnetic properties of six-coordinate transition metal (Co, Ni, and Cu) compounds with a 4-amino-1,2,4-triazole Schiff-base ligand
title_full Synthesis, crystal structures, HF-EPR, and magnetic properties of six-coordinate transition metal (Co, Ni, and Cu) compounds with a 4-amino-1,2,4-triazole Schiff-base ligand
title_fullStr Synthesis, crystal structures, HF-EPR, and magnetic properties of six-coordinate transition metal (Co, Ni, and Cu) compounds with a 4-amino-1,2,4-triazole Schiff-base ligand
title_full_unstemmed Synthesis, crystal structures, HF-EPR, and magnetic properties of six-coordinate transition metal (Co, Ni, and Cu) compounds with a 4-amino-1,2,4-triazole Schiff-base ligand
title_short Synthesis, crystal structures, HF-EPR, and magnetic properties of six-coordinate transition metal (Co, Ni, and Cu) compounds with a 4-amino-1,2,4-triazole Schiff-base ligand
title_sort synthesis, crystal structures, hf-epr, and magnetic properties of six-coordinate transition metal (co, ni, and cu) compounds with a 4-amino-1,2,4-triazole schiff-base ligand
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9051221/
https://www.ncbi.nlm.nih.gov/pubmed/35492139
http://dx.doi.org/10.1039/c9ra10851c
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