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Review

Exploring Spin-Crossover Cobalt(II) Single-Ion Magnets as Multifunctional and Multiresponsive Magnetic Devices: Advancements and Prospects in Molecular Spintronics and Quantum Computing Technologies †

1
Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, València, Spain
2
Instituto de Química, Universidade Federal de Goiás, Goiânia 74690-900, Brazil
3
Laboratoire de Chimie Organique Appliquée, Faculté des Sciences Techniques de Fès, Université Sidi Mohammed Ben Abdellah, Fès 30000, Morocco
*
Author to whom correspondence should be addressed.
Dedicated to Professors Miguel Julve and Francesc Lloret, two outstanding chemists, excellent teachers, best friends, and colleagues on the occasion of their retirement and, particularly, to the memory of Miguel Julve, who passed away in July 2024.
Magnetochemistry 2024, 10(12), 107; https://doi.org/10.3390/magnetochemistry10120107
Submission received: 9 November 2024 / Revised: 9 December 2024 / Accepted: 13 December 2024 / Published: 17 December 2024

Abstract

Spin-crossover (SCO) and single-ion magnets (SIMs), or their mixed SCO-SIM derivatives, are a convenient solution in the evolution from molecular magnetism toward molecular spintronics and quantum computing. Herein, we report on the current trends and future directions on the use of mononuclear six-coordinate CoII SCO-SIM complexes with potential opto-, electro-, or chemo-active 2,6-pyridinediimine (PDI)- and 2,2′:6′,2′-terpyridine (TERPY)-type ligands as archetypical examples of multifunctional and multiresponsive magnetic devices for applications in molecular spintronics and quantum computing technologies. This unique class of spin-crossover cobalt(II) molecular nanomagnets is particularly well suited for addressing and scaling on different supports, like metal molecular junctions or carbon nanomaterials (CNMs) and metal–organic frameworks (MOFs) or metal-covalent organic frameworks (MCOFs), in order to measure the single-molecule electron transport and quantum coherence properties, which are two major challenges in single-molecule spintronics (SMS) and quantum information processing (QIP).
Keywords: cobalt complexes; coordination chemistry; dynamic molecular systems; ligand design; non-innocent ligands; single-ion magnets; spin-crossover; molecular magnetism; molecular spintronics; quantum computing cobalt complexes; coordination chemistry; dynamic molecular systems; ligand design; non-innocent ligands; single-ion magnets; spin-crossover; molecular magnetism; molecular spintronics; quantum computing
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MDPI and ACS Style

Rabelo, R.; Toma, L.M.; Bentama, A.; Stiriba, S.-E.; Ruiz-García, R.; Cano, J. Exploring Spin-Crossover Cobalt(II) Single-Ion Magnets as Multifunctional and Multiresponsive Magnetic Devices: Advancements and Prospects in Molecular Spintronics and Quantum Computing Technologies. Magnetochemistry 2024, 10, 107. https://doi.org/10.3390/magnetochemistry10120107

AMA Style

Rabelo R, Toma LM, Bentama A, Stiriba S-E, Ruiz-García R, Cano J. Exploring Spin-Crossover Cobalt(II) Single-Ion Magnets as Multifunctional and Multiresponsive Magnetic Devices: Advancements and Prospects in Molecular Spintronics and Quantum Computing Technologies. Magnetochemistry. 2024; 10(12):107. https://doi.org/10.3390/magnetochemistry10120107

Chicago/Turabian Style

Rabelo, Renato, Luminita M. Toma, Abdeslem Bentama, Salah-Eddine Stiriba, Rafael Ruiz-García, and Joan Cano. 2024. "Exploring Spin-Crossover Cobalt(II) Single-Ion Magnets as Multifunctional and Multiresponsive Magnetic Devices: Advancements and Prospects in Molecular Spintronics and Quantum Computing Technologies" Magnetochemistry 10, no. 12: 107. https://doi.org/10.3390/magnetochemistry10120107

APA Style

Rabelo, R., Toma, L. M., Bentama, A., Stiriba, S.-E., Ruiz-García, R., & Cano, J. (2024). Exploring Spin-Crossover Cobalt(II) Single-Ion Magnets as Multifunctional and Multiresponsive Magnetic Devices: Advancements and Prospects in Molecular Spintronics and Quantum Computing Technologies. Magnetochemistry, 10(12), 107. https://doi.org/10.3390/magnetochemistry10120107

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