Volume 50, Issue 17 p. 4016-4019

Communication

Wheel‐Shaped Er^IIIZn^II₃ Single‐Molecule Magnet: A Macrocyclic Approach to Designing Magnetic Anisotropy^†

Aika Yamashita

Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402

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Akiko Watanabe

Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402

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Prof. Dr. Shigehisa Akine

Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305‐8571 (Japan)

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Prof. Dr. Tatsuya Nabeshima

Corresponding Author

nabesima@chem.tsukuba.ac.jp

Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305‐8571 (Japan)

Tatsuya Nabeshima, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305‐8571 (Japan)===

Takashi Kajiwara, Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402===

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Prof. Dr. Motohiro Nakano

Graduate School of Engineering, Osaka University, Suita, Osaka 565‐0871 (Japan)

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Dr. Tomoo Yamamura

Institute for Materials Research, Tohoku University, Aoba‐ku, Sendai, Miyagi 980‐8577 (Japan)

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Prof. Dr. Takashi Kajiwara

Corresponding Author

kajiwara@cc.nara‐wu.ac.jp

Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402

Tatsuya Nabeshima, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305‐8571 (Japan)===

Takashi Kajiwara, Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402===

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Aika Yamashita

Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402

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Akiko Watanabe

Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402

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Prof. Dr. Shigehisa Akine

Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305‐8571 (Japan)

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Prof. Dr. Tatsuya Nabeshima

Corresponding Author

nabesima@chem.tsukuba.ac.jp

Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305‐8571 (Japan)

Tatsuya Nabeshima, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305‐8571 (Japan)===

Takashi Kajiwara, Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402===

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Prof. Dr. Motohiro Nakano

Graduate School of Engineering, Osaka University, Suita, Osaka 565‐0871 (Japan)

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Dr. Tomoo Yamamura

Institute for Materials Research, Tohoku University, Aoba‐ku, Sendai, Miyagi 980‐8577 (Japan)

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Prof. Dr. Takashi Kajiwara

Corresponding Author

kajiwara@cc.nara‐wu.ac.jp

Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402

Tatsuya Nabeshima, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305‐8571 (Japan)===

Takashi Kajiwara, Faculty of Science, Nara Women's University, Nara, Nara 630‐8506 (Japan), Fax: (+81) 742‐20‐3402===

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First published: 23 March 2011

https://doi.org/10.1002/anie.201008180

Citations: 178

^†

This work was supported by The Sumitomo Foundation, as well as a Grant‐in Aid for Scientific Research of Priority Areas (Panoscopic Assembling and High Ordered Functions for Rare Earth Materials) and Scientific Research (C) from the Ministry of Education, Culture, Science, Sports and Technology (Japan).

Abstract

Designer SMM: An Er^III‐based single‐molecule magnet (SMM) was synthesized by designing the ligand‐field anisotropy around an Er^III ion in an equatorial arrangement of donors using a rigid and planar macrocyclic Schiff base ligand including three Zn^II ions. The resulting Er^IIIZn^II₃ complex (see picture; C gray, O red, N blue) behaves as a SMM with an energy barrier of 24.6(9) K for flipping of the molecular magnetic moment.