Synthesis, Crystal Structures, and Magnetic Properties of Mixed-Valent Tetranuclear Complexes with Y-Shaped MnII2MnIII2 Core

Masahiro Mikuriya; Satoshi Kurahashi; Seiki Tomohara; Yoshiki Koyama; Daisuke Yoshioka; Ryoji Mitsuhashi; Hiroshi Sakiyama

doi:10.3390/magnetochemistry5010008

Magnetochemistry (Jan 2019)

Synthesis, Crystal Structures, and Magnetic Properties of Mixed-Valent Tetranuclear Complexes with Y-Shaped MnII2MnIII2 Core

Masahiro Mikuriya,
Satoshi Kurahashi,
Seiki Tomohara,
Yoshiki Koyama,
Daisuke Yoshioka,
Ryoji Mitsuhashi,
Hiroshi Sakiyama

Affiliations

Masahiro Mikuriya: Department of Applied Chemistry for Environment and Reserach Center for Coordination Molecule-Based Devices, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
Satoshi Kurahashi: Department of Applied Chemistry for Environment and Reserach Center for Coordination Molecule-Based Devices, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
Seiki Tomohara: Department of Applied Chemistry for Environment and Reserach Center for Coordination Molecule-Based Devices, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
Yoshiki Koyama: Department of Applied Chemistry for Environment and Reserach Center for Coordination Molecule-Based Devices, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
Daisuke Yoshioka: Department of Applied Chemistry for Environment and Reserach Center for Coordination Molecule-Based Devices, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
Ryoji Mitsuhashi: Department of Applied Chemistry for Environment and Reserach Center for Coordination Molecule-Based Devices, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
Hiroshi Sakiyama: Department of Science, Faculty of Science, Yamagata University, 1-4-12 Kojirakawa, Yamagata 990-8560, Japan

DOI: https://doi.org/10.3390/magnetochemistry5010008
Journal volume & issue: Vol. 5, no. 1
p. 8

Abstract

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Tetranuclear MnII2MnIII2 complexes with 1,3-bis(5-bromo-3-metoxysalicylidenaminomethyl)-2-propanol (H3bmsap) and 1,3-bis(5-chloro-3-methoxysalicylidenaminomethyl)-2-propanol (H3cmsap), [Mn4(bmsap)2(CH3CO2)3(CH3O)] (3) and [Mn4(cmsap)2(CH3CO2)3(CH3O)] (4), were synthesized and characterized by elemental analysis, infrared and diffused reflectance spectra and variable-temperature magnetic susceptibility measurements in the 2⁻300 K range. The crystal structures of 3 and 4 revealed a Y-shaped tetranuclear manganese cluster formed by the two Schiff-base ligands, three kinds of acetato ligands (bidentate, syn⁻anti-bridging, and syn⁻syn-bridging), and µ-methoxido ligand. The magnetic data showed the magnetic interactions among the four manganese atoms are antiferromagnetic as a whole within the tetranuclear cluster.

Published in Magnetochemistry

ISSN: 2312-7481 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: http://www.mdpi.com/journal/magnetochemistry

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