ADVANCED INORGANIC CHEMISTRY
Academic year and teacher
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- Versione italiana
- Academic year
- 2022/2023
- Teacher
- STEFANO CARAMORI
- Credits
- 6
- Didactic period
- Secondo Semestre
- SSD
- CHIM/03
Training objectives
- -The course deals with the electronic structure, reactivity, electrochemistry and spectroscopy of transition metal compounds. Emphasis will be given to the electron transfer processes for energy conversion and some elements of solid state chemistry will be provided.
The course includes theoretical and practical aspects. Introduction to techniques and procedures important to the successful practice of inorganic- chemistry. Development of a proper scientific approach to the execution of experiments and interpretation of the resulting data. The student should have the ability of programming the inorganic synthesis, characterizing the reaction products and understanding their chemical properties. Prerequisites
- Basic Knowledge of Inorganic Chemistry, bond theory, quantum harmonic oscillator, chemical kinetics and molecular symmetry.
Course programme
- The teaching encompass 32 h of theory and 24 h of lab practice in the Inorganic Chemistry laboratory.
Classroom lessons will be focused onthe applications of group theory and molecular symmetry to the description of bonding in coordination compounds, starting with the classical octhedral, square planar, tetrahedral compounds and moving then to lower simmetry cases. Later, applications of symmetry for the description of molecular vibrations and electronic selection rules will be intorduced. With more details the course will cover: application of group theory to ligand field theory; construction of Symmetry Adapted Linear Combinations of Atomic Orbitals (SALCs) of sigma and pi ligands; costruction of hybtrid orbitals; applications of symmetry to the derivation of normal modes of vibration in small inorganic molecules and coordination compounds; IR and Raman selection rules; a systematic approach to the symmetry of electronic states in open shell systems and selection rules for electronic transitions in octahedreal and tetrahedral complexes (Tanabe-Sugano diagrams) and in lower symmetry cases. During the applications of bond theory examples of metal-carbonyl, metal-nitrosyl, metal-nitrogen, metal-alkyl, metal-olefin and metallocene complexes will be considered.
The experimental work, is performed in the Inorganic Chemistry laboratory and will consist on the preparation and characterization of coordination compounds based on ruthenium (II), Cu(II), Co(II), Cu(I) and will involve: UV- Vis and 1H NMR characterization. Application of electrochemical methods in inorganic chemistry: cyclic voltammetry, half wave potential, reversibility criteria, kinetic and diffusional control of an electrochemical process.
Determination of the electronically excited state properties: determination of excited state oxidation and reduction potential from spectroscopic and electrochemical data. Sensitization of wide band-gap semiconductors in solar energy conversion processes.
No reports on the different experiments are requested. These will be discussed during the oral examination Didactic methods
- The course is held through 32 h of teaching lessons, with the help of slides which help explaining the different subjects and 24 h of laboratory training on the preparation, spectroscopic and electrochemical characterization of coordination compounds.
Pre-registered lessons as an aid for self study are available at r5aixzh Learning assessment procedures
- The purpose of the examination is to verify the level of knowledge on the different subjects treated during the course and evaluate the ability to apply this knowledge to the description of electronic, spectroscopic, electrochemical properties of coordination compounds. This will include the establishement of viable synthetic routes to selected compounds and the expected properties which may emerge by selecting a given characterization tool (i.e. IR, Uv-Vis, NMR, electrochemistry). The examination is oral and starts from the discussion of a selected topic of students'choice. The duration of the examination is at least 45 minute involves four questions. The exam is passed if the student demonstrates an acceptable preparation on at least three main topics/applications out of four that will be discussed
Reference texts
- Chemical Applications of Group Theory, F. Albert Cotton
Wiley VCH
Symmetry and Spectroscopy, An Introduction to Vibrational and Electronic Spectroscopy, Daniel C. Harris, Michael D Bertolucci, Dover Books on Chemistry
Inorganic Chemistry. J.E. Huheey, E.A. Keiter, R.L. Keiter. Piccin Ed. 1999
Inorganic Chemistry. D. F. Shriver, P. W. Atkins, Oxford University Press 2010
