Syntheses, Structures and Magnetic Properties of M<sub>2</sub> (M = Fe, Co) Complexes with N<sub>6</sub> Coordination Environment: Field-Induced Slow Magnetic Relaxation in Co<sub>2</sub>
Two dinuclear complexes [M<sub>2</sub>(H<sub>2</sub>L)<sub>2</sub>](ClO<sub>4</sub>)<sub>4</sub>·2MeCN (M = Co for <b>Co<sub>2</sub></b> and Fe for <b>Fe<sub>2</sub></b>) were synthesized usin...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
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| Series: | Magnetochemistry |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2312-7481/7/12/153 |
| Summary: | Two dinuclear complexes [M<sub>2</sub>(H<sub>2</sub>L)<sub>2</sub>](ClO<sub>4</sub>)<sub>4</sub>·2MeCN (M = Co for <b>Co<sub>2</sub></b> and Fe for <b>Fe<sub>2</sub></b>) were synthesized using a symmetric hydrazone ligand with the metal ions in an N<sub>6</sub> coordination environment. The crystal structures and magnetic properties were determined by single-crystal X-ray diffraction and magnetic susceptibility measurements. The crystal structure study revealed that the spin centers were all in the high-spin state with a distorted octahedron (O<sub>h</sub>) geometry. Dynamic magnetic properties measurements revealed that complex <b>Co<sub>2</sub></b> exhibited field-induced single-molecule magnet properties with two-step relaxation in which the fast relaxation path was from QTM and the slow relaxation path from the thermal relaxation under an applied field. |
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| ISSN: | 2312-7481 |