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Magnetic Atoms and Molecules in material science, chemistry and biochemistry

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Magnetic Atoms and Molecules in material science, chemistry and biochemistry

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Academic year 2023/2024

Course ID
CHI0141
Teachers
Enrico Salvadori (Lecturer)
Degree course
Materials Science [0208M21]
Materials Science [0202M21]
MaMaself
Year
1st year, 2nd year
Teaching period
First semester
Type
Optional
Credits/Recognition
4
Course disciplinary sector (SSD)
CHIM/03 - general and inorganic chemistry
Delivery
Class Lecture
Language
English
Attendance
Optional
Type of examination
Oral
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Sommario del corso

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Course objectives

The aim of the course is to provide an introduction to magnetic phenomena in molecular and solid state systems of inorganic and bioinorganic nature. Emphasis is given on the design and study of magnetic molecules and materials with tunable properties and on their chemical reactivity. Topics include classical versus quantum mechanical pictures, paramagnetism, crystal field effects, dipolar and exchange interactions, spin chemistry and spintronics.

 

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Results of learning outcomes

Physical basis of molecular magnetism. Magnetic centers in solids.

Principles of Electron Paramagnetic Resonance (EPR) spectroscopy

Magnetic interactions: dependence on the chemical, structural and geometrical parameters of a magnetic centre.

Modern techniques of magnetic measurements.

 

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Program

Magnetism of atoms, ions and molecules.

Brief review of free atoms (and ions) magnetism: angular momentum theory; atomic terms; spin-orbit coupling; atomic multiplets; Hund’s rule magnetism; Zeeman effect. Spin Hamiltonian formalism.

From magnetic atoms to magnetic molecules and magnetic centers in solids.  Review of crystal field and ligand field theories.

- Magnetic anisotropy and paramagnetic systems; Doublet states (S=1/2) and high spin states (S>1). Spin-orbit (g), hyperfine (A) and zero field splitting (D) interactions.

-Magnetic susceptibility, EPR spectroscopy, relaxation phenomena.

-Magnetic properties of open-shell systems in single crystal and polycrystalline matrices. Magnetic systems and related phenomena in biochemistry.

-Chemical reactivity and magnetism (spin cross-over, spin chemistry)

Selected example of applications (chemistry, photochemistry,  biochemistry,  material science, solid state physics, catalysis and photocatalysis).

 

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Course delivery

The course will be taught in English.

Classes will be held in presence at the Department of Chemistry.

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Learning assessment methods

The final examination will consist of an oral examination based on a 15 min presentation by the student of a case study chosen among those provided on the web page of the course or suggested by the students based on their specific scientific interests.

 

Suggested readings and bibliography

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"Magnetochemistry" A.F. Orchard, Oxford Chemistry Primers

Selected texts and research papers will be provided and uploaded on the Moodle page of the course.



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Class scheduleV

Lessons: from 03/10/2022 to 22/12/2022

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