Ln–Pt electron polarization effects on the magnetic relaxation of heterometallic Ho– and Er–Pt complexes

Takefumi Yoshida; David C. Izuogu; Hai-Tao Zhang; Goulven Cosquer; Hitoshi Abe; Wolfgang Wernsdorfer; Brian K. Breedlove; Masahiro Yamashita

doi:10.1039/C8DT03338B

Ln–Pt electron polarization effects on the magnetic relaxation of heterometallic Ho– and Er–Pt complexes†

Takefumi Yoshida,

‡*^a David C. Izuogu,

^ab Hai-Tao Zhang,^a Goulven Cosquer,

^a Hitoshi Abe,

^cd Wolfgang Wernsdorfer,^ef Brian K. Breedlove

^a and Masahiro Yamashita*^agh

Author affiliations

* Corresponding authors

^a Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan
E-mail: YOSHIDA.Takefumi@nims.go.jp

^b Department of Pure & Industrial Chemistry, University of Nigeria, Nsukka, Nigeria

^c Institute of Materials Structure Science High Energy Accelerator Research Organization (KEK) 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

^d Department of Materials Structure Science, School of High Energy Accelerator Science, SOKENDAI(the Graduate University for Advanced Studies) 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

^e Physikalisches Institut, Karlsruher Institut für Technologie Wolfgang-Gaede-Str. 1, D-76131 Karlsruhe, Germany

^f CNRS and Université Grenoble Alpes, Institut Néel, 38042 Grenoble, France

^g WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan

^h School of Materials Science and Engineering, Nankai University, Tianjin 300350, China

Abstract

Heterometallic Ln–Pt complexes, with the formula [Ln₂Pt₃(H₂O)₂(SAc)₁₂] (Ln = Ho(1), Er(2); SAc = thioacetate), were synthesized. From natural bond orbital (NBO) and local orbital locator (LOL) analyses and X-ray absorption fine structure (XAFS) measurements, it was clear that the Ln–Pt interactions or electron polarization occurred. Butterfly-type hysteresis was observed for both 1 and 2. 1 and 2 underwent field-induced slow magnetic relaxation up to 4 K. These magnetic properties were induced by Ln–Pt electron polarization.

This article is part of the themed collection: New Talent: Asia-Pacific

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DOI: https://doi.org/10.1039/C8DT03338B
Article type: Paper
Submitted: 15 ago 2018
Accepted: 10 set 2018
First published: 10 set 2018

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Dalton Trans., 2019,48, 7144-7149

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Ln–Pt electron polarization effects on the magnetic relaxation of heterometallic Ho– and Er–Pt complexes

T. Yoshida, D. C. Izuogu, H. Zhang, G. Cosquer, H. Abe, W. Wernsdorfer, B. K. Breedlove and M. Yamashita, Dalton Trans., 2019, 48, 7144 DOI: 10.1039/C8DT03338B

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Dalton Transactions

Ln–Pt electron polarization effects on the magnetic relaxation of heterometallic Ho– and Er–Pt complexes†

Abstract

Supplementary files

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Ln–Pt electron polarization effects on the magnetic relaxation of heterometallic Ho– and Er–Pt complexes

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