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Chemistry and properties of transition elements

  • School / Prep

    ENSMAC

Internal code

PI6CHPET

Description

At the end of the course, students should be able to:

State the main physico-chemical properties of transition elements and introduce crystal field theory
On the basis of solid-state chemist reasoning, predict the stability of an ion in a given site or structure (by performing crystal field stabilization energy calculations, for example, or by considering ionic radius evolutions)
State the physico-chemical processes that explain the color of transition element compounds. Know how to use Tanabe Sugano diagrams.
Name the characterization techniques to be used to determine the structure and chemical formula of a material, and establish a realistic and coherent chemical formula using the results obtained. In particular, determine the degrees of oxidation and electronic configurations of ions on the basis of magnetic measurements.
Make links between the structure/chemical formula (degrees of oxidation of ions, configurations, stoichiometry) and certain properties (electrical conduction, color) of materials.

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Teaching hours

  • CIIntegrated courses16h

Mandatory prerequisites

UE Chemistry of Materials (S5)

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Syllabus

Transition elements.

General (d,f transition elements)
Physico-chemical properties of transition elements
Crystalline field theory
Applications of the crystalline field (stability of structures, spin states, Jahn-Teller effect, evolution of ionic rays)

The color of transition element compounds.Spectroscopic termsElectron spectra and color

A first approach to color
Spectroscopic terms
Color and charge transfer
Electronic spectra and color
Tanabe Sugano diagrams

Magnetic properties of materials

Magnetic susceptibility
Free ion paramagnetism
Magnetic orders
Magnetism of compounds, examples (perovskites, spinels.)

Examples and applications:
chromium and color, titanium and anti-UV properties, iron and magnetism, cobalt and energy storage...

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Further information

Chemistry and inorganic materials

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Bibliography

Inorganic Chemistry, Huheey, Keiter and Keiter, De Boeck Université
Colour and the optical properties of materials, R. Tilley, WILEY.
Introduction to solid state chemistry, L. Smart, E. Moore, MASSON

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Assessment of knowledge

Initial assessment / Main session - Tests

Type of assessmentType of testDuration (in minutes)Number of testsTest coefficientEliminatory mark in the testRemarks
Final inspectionWritten601

Second chance / Catch-up session - Tests

Type of assessmentType of testDuration (in minutes)Number of testsTest coefficientEliminatory mark in the testRemarks
Final testWritten601