Project description
Chiral spin crossover complexes support control of magnetic and chiroptical properties
Spin crossover (SCO) occurs when the ground-state-electron spin state configuration of certain transition metal complexes switches between a high-spin to a low-spin configuration due to an external stimulus. Leveraging chiral SCO complexes can enable chiroptical and magneto-chiroptical effects – changes in optical properties due to interaction with circularly polarised light without or with magnetic field dependence. Such chiral SCO complexes thus open the door to exquisite control of magnetic and chiroptical properties. With the support of the Marie Skłodowska-Curie Actions programme, the MagChirSwitch project aims to leverage SCO phenomena to achieve unprecedented control over chiroptical and magneto-chiroptical effects in cutting-edge chiral Fe(II) and Fe(II)Ln(III) materials and nanomaterials.
Objective
The MagChirSwitch MSCA-PF project pioneers cutting-edge chiral Fe(II) and Fe(II)Ln(III) materials, leveraging spin-crossover (SCO) phenomena to achieve unprecedented control over chiroptical and magneto-chiroptical effects. Focusing on magneto-chiral dichroism (MChD) and (magnetic) circularly polarised luminescence ((M)CPL), MagChirSwitch aims to be the first to follow these phenomena over Fe(II) transitions, driven by the design of innovative chiral SCO complexes. The bistability of Fe(II) ions between paramagnetic and diamagnetic states offers breakthrough potential for switching chiroptical properties – an unexplored frontier that could redefine magneto-chiral materials and expand SCO applications.
The project unfolds in two phases. The first focuses on the development of chiral SCO crystalline materials and the successful detection of MChD and/or (M)CPL switching, triggered by temperature (thermally-induced SCO) or light (light-induced excited spin-state trapping, LIESST). This molecular approach enables precise design and rapid optimisation of magnetic and chiroptical properties. The second phase pushes the boundaries by transferring these magneto-switching effects to nanomaterials, advancing their real-world application potential. Nanomaterials that retain these switching abilities will enable scalable production, such as thin films for next-generation magneto-chiroptical devices. Additionally, transitioning to nanoparticles may reveal novel phenomena, such as shape changes linked to Fe(II) spin transitions.
MagChirSwitch will profoundly enhance the post-doctoral fellow’s expertise by exposing her to advanced synthesis and measurement techniques (including MChD measurements during short visits at LNCMI, CNRS), as well as interdisciplinary collaboration. This experience will be pivotal in launching her academic career, equipping her to lead her own research group at a university in Europe and securing high-impact research funding.
Fields of science (EuroSciVoc)
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CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
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(opens in new window) HORIZON-MSCA-2024-PF-01
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75794 Paris
France
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