Molecular Magnetism of Transition Metal Complexes
A special issue of Metals (ISSN 2075-4701).
Deadline for manuscript submissions: closed (31 December 2019) | Viewed by 7486
Special Issue Editor
Interests: ccoordination chemistry; transition metal complexes (Mn, Fe, Co, Ni, etc.); spin-crossover; molecular magnets; chemistry of contrast agents for Magnetic Resonance Imaging (Mn2+ and Gd3+ complexes)
Special Issue Information
Dear Colleagues,
The field of molecular magnetism has become an important part of coordination chemistry. Single-molecule magnets (SMMs), mononuclear SMMs, so-called single-ion magnets (SIMs), and single-chain magnets (SCMs) are compounds exhibiting slow relaxation of magnetization based on a pure molecular origin (without any long-range ordering typical for “bulk” magnets). The interest in this class of complexes is driven by their promising application potential in ultradense information storage, quantum computing and spintronics. Nevertheless, they operate at very low temperatures (currently up to 80 K) so far. In order to overcome this problem, it is necessary to tune/increase the magnetic anisotropy of complexated metal ions by a rational ligand design and to understand all parameters governing the process of relaxation of magnetization. Unfortunately, this is still a challenge for coordination chemists and therefore more magneto-structural correlations, as well as in-depth investigation of dynamic magnetic processes, are required.
Other important sub-class in molecular magnetism represents complexes showing spin crossover (SCO), which is the spin transition between high-spin and low-spin state usually induced by different external constraints (e.g., temperature, pressure or light). Such compounds can find many interesting applications including molecular switches, sensors, or display technologies, etc. Seeking for new systems with adequate abruptness, temperature and other characteristics of the spin transition is still in the center of attention in order to reveal structural parameters responsible for the concrete SCO behavior consequently providing information how to fabricate advanced SCO materials.
Thus, it is a great pleasure for me to invite you to participate in this Special Issue, which should provide the most recent developments and advances in the above-mentioned topics concerning SMMs, SIMs, SCMs, tuning of magnetic anisotropy, investigation of relaxation processes in molecular magnets, and also new SCO systems.
Dr. Bohuslav Drahos
Guest Editor
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Keywords
- Single-molecule magnet (SMM)
- Single-ion magnet (SIM)
- Single-chain magnet (SCM)
- Magnetic anisotropy
- Zero-field splitting (ZFS)
- Relaxation of magnetization
- Spin crossover (SCO)
- Transition metal complex
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