Slow magnetic relaxation in a {EuCu5} metallacrown

Jin Wang; Ze-yu Ruan; Quan-wen Li; Yan-cong Chen; Guo-zhang Huang; Jun-liang Liu; Daniel Reta; Nicholas F. Chilton; Zhen-xing Wang; Ming-liang Tong

doi:10.1039/C8DT04814B

Slow magnetic relaxation in a {EuCu5} metallacrown

Jin Wang, Ze-yu Ruan, Quan-wen Li, Yan-cong Chen, Guo-zhang Huang, Jun-liang Liu, Daniel Reta, Nicholas F. Chilton, Zhen-xing Wang, Ming-liang Tong

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Abstract

A 3d–4f heterometallic metallacrown with formula of [EuCu5(quinha)5(sal)2(py)5]CF3SO3·py·3H2O (1) (H2quinha = quinaldichydroxamic acid; Hsal = salicylaldehyde) has been synthesized. This complex shows field-induced slow magnetic relaxation via a Raman-like process, where studies of the isostructural {LuCu5} (2) and {YCu5} (3) complexes show that the slow dynamics mainly arise from the {Cu5} S = 1/2 ground state rather than the EuIII ion. However, the EuIII ion enhances the relaxation rates of the {Cu5} unit which likely arises from second-order effects in the formally diamagnetic 7F0 ground state of EuIII.

Original language	English
Pages (from-to)	1686-1692
Journal	Dalton Transactions
Volume	48
Issue number	5
Early online date	26 Dec 2018
DOIs	https://doi.org/10.1039/C8DT04814B
Publication status	Published - 2019

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title = "Slow magnetic relaxation in a {EuCu5} metallacrown",

abstract = "A 3d–4f heterometallic metallacrown with formula of [EuCu5(quinha)5(sal)2(py)5]CF3SO3·py·3H2O (1) (H2quinha = quinaldichydroxamic acid; Hsal = salicylaldehyde) has been synthesized. This complex shows field-induced slow magnetic relaxation via a Raman-like process, where studies of the isostructural {LuCu5} (2) and {YCu5} (3) complexes show that the slow dynamics mainly arise from the {Cu5} S = 1/2 ground state rather than the EuIII ion. However, the EuIII ion enhances the relaxation rates of the {Cu5} unit which likely arises from second-order effects in the formally diamagnetic 7F0 ground state of EuIII.",

author = "Jin Wang and Ze-yu Ruan and Quan-wen Li and Yan-cong Chen and Guo-zhang Huang and Jun-liang Liu and Daniel Reta and Chilton, {Nicholas F.} and Zhen-xing Wang and Ming-liang Tong",

year = "2019",

doi = "10.1039/C8DT04814B",

language = "English",

volume = "48",

pages = "1686--1692",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "5",

}

TY - JOUR

T1 - Slow magnetic relaxation in a {EuCu5} metallacrown

AU - Wang, Jin

AU - Ruan, Ze-yu

AU - Li, Quan-wen

AU - Chen, Yan-cong

AU - Huang, Guo-zhang

AU - Liu, Jun-liang

AU - Reta, Daniel

AU - Chilton, Nicholas F.

AU - Wang, Zhen-xing

AU - Tong, Ming-liang

PY - 2019

Y1 - 2019

N2 - A 3d–4f heterometallic metallacrown with formula of [EuCu5(quinha)5(sal)2(py)5]CF3SO3·py·3H2O (1) (H2quinha = quinaldichydroxamic acid; Hsal = salicylaldehyde) has been synthesized. This complex shows field-induced slow magnetic relaxation via a Raman-like process, where studies of the isostructural {LuCu5} (2) and {YCu5} (3) complexes show that the slow dynamics mainly arise from the {Cu5} S = 1/2 ground state rather than the EuIII ion. However, the EuIII ion enhances the relaxation rates of the {Cu5} unit which likely arises from second-order effects in the formally diamagnetic 7F0 ground state of EuIII.

AB - A 3d–4f heterometallic metallacrown with formula of [EuCu5(quinha)5(sal)2(py)5]CF3SO3·py·3H2O (1) (H2quinha = quinaldichydroxamic acid; Hsal = salicylaldehyde) has been synthesized. This complex shows field-induced slow magnetic relaxation via a Raman-like process, where studies of the isostructural {LuCu5} (2) and {YCu5} (3) complexes show that the slow dynamics mainly arise from the {Cu5} S = 1/2 ground state rather than the EuIII ion. However, the EuIII ion enhances the relaxation rates of the {Cu5} unit which likely arises from second-order effects in the formally diamagnetic 7F0 ground state of EuIII.

U2 - 10.1039/C8DT04814B

DO - 10.1039/C8DT04814B

M3 - Article

SN - 1477-9226

VL - 48

SP - 1686

EP - 1692

JO - Dalton Transactions

JF - Dalton Transactions

IS - 5

ER -

Slow magnetic relaxation in a {EuCu5} metallacrown

Abstract

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