Teachings

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Professor
MASSIMILIANO ARCA (Tit.)
Period
First Semester 
Teaching style
Convenzionale 
Lingua Insegnamento
 



Informazioni aggiuntive

Course Curriculum CFU Length(h)
[60/58]  CHEMISTRY [58/10 - Ord. 2017]  CHIMICA 12 112

Objectives

The course on Inorganic Chemistry will be mainly focussed on the comprehension of the chemistry of the periodic table through the atomic properties of the chemical elements. Furthermore a deeper insight into the nature of the chemical bonding will be given. Aim of the Laboratory module is to get the students accustomed with laboratory techniques and to introduce them to key aspects of general and Inorganic Chemistry.

Prerequisites

The participation requires the pass in General Chemistry and 1st year Laboratory of General Chemistry.
For the final examination the pass in Mathematics I (1st year) is needed as well.

Contents

1. Elemental particles and fundamental interactions. Atomic and mass number. Isotopes and isobars. Nucleosinthesis. Nuclides. Nuclear reactions. Mass defect. Nuclide chart. Fajans-Soddy rules. H and Li+ atoms. Emission atomic spectra. Schroedinger equation. Electron shells. Spin moltiplicity. Electron correlation and repulsion. Effective nuclear charge. The periodic table of the elements. Atomic radii. Periodic properties: ionic radii, ionisation energy, electron affinity. Electronegativity. Oxidation number. Dipole moment. Polarizability. Fajans rules. (T1, chap. 1; T2, chap. 1, 2; T2, chap. 3. 73-75, chap. 8, 254-258)
2. Orbital approximation. Born-Oppenheimer approximation. LCAO-MO. Overlap. Bonding, non-bonding and antibonding orbitals. MO theory for bi- and polynuclear molecules/ions. MO-localization and hybridization. Hypercoordination. Electron-deficiency. Walsh diagrams (T1, chap. 2, 44-65; T2, chap. 5, 126-149; T3, chap. 5, 201-210).
3. Metallic, covalent, ionic solid phases. Metal bonding. Crystals. Elemental cell. Crystal systems. Translational symmetry. Packing of atoms: hcp and ccp, bcc and P. Metals and intermetallic phases. Alloys. Ionic solids. Geometric factors affecting CP. Ionic radii ratio. Structure maps. Thermodynamics of ionic lattices. Lattice enthalpy. Thermal stabilities of carbonates, salts of metals in high oxidation states, polyinterhalides. Water solubility and hydration. Solubility of hydroxides and 2nd group sulphates. (T1, chap. 3, 68-100, 112-113)
4. Proton affinity, effective proton affinity, solvation free energy. Levelling effect of the solvent. Aquoacids, hydroxoacids, oxoacids. Periodic trends in the pKa values of aquoacids. Substituent effects on the acidity of oxoacids. Pauling rules. Anhydrous acid, basic, amphoteric oxides. Polyoxides and polyoxoanions. Non-aqueous solvents. HSAB theory. Superacids and superbases. (T1, chap. 4, 116-142, 144-149; T2, chap. 6, 175-182, 191-195, 204-216)
5. Electron configuration of TM ions. Ligands and complexes. Oxidation state of TMs in coordination compounds and complexes. Coordination number. Denticity. Electron classification of the donors. Naming rules and examples. Coordination geometry and coordination numbers 2, 4, 5, 6. Fluxionality. Isomerism. Polymetallic complexes. Thermodynamic aspects in the formation of metal complexes. K and Beta. Chelate and macrocyclic effects. (T1, chap. 7; T2, chap. 9, 321-335, 346-353. T3, 47-59, 60-73)
6. Principles of CFT. Spectrochemical series. HS and LS configuration. Colour and magnetism. (T1, chap. 20, 493-503, 408-409; T2, chap. 10, 362-366, 409-410; T3, 645-648, 660-668)
7. Italian law system regarding the security in the chemical laboratory. Fire extinction policy and good-practices. G16 and Molden. Design and geometry of molecules. Preparing calculations. Analysis of the output of QM calculations. Building up of MO diagrams.

Experiments: 1)HF Determination of atomic orbitals and first ionisation energies; 2) Molecular modelling of simple molecules; 3) Behaviour of chemical compounds when heated. 4) Periodicity in the main groups II and VII. 5) Polyoxovanadates: synthesis and analysis. 5) Introduction to coordination chemistry. (T4, chap. 1, 5-13, 16-17; chap. 2, 19-25, 27; chap. 3; T3, chap. 8, 14, 16-4, 17, 19 (consul.); T5, pp 316-325 (consult.)

Teaching Methods

Taught class (64 hours) and laboratory sessions (48 hours).
Lessons are held in Italian unless differently required.
Satisfactory attendance in the laboratory throughout the practical course is necessary to pass the module.
Numerical exercizes will be carried out during the semester.

Since a laboratory part is included in the course, attendance is required for both lessons and laboratory sessions. The lessons will preceed the laboratory part.

In order to satisfy specific teaching needs depending on the pandemic outbreak, it will be possible that part of the lessons will be made available through streaming services (Adobe Connect) or recordings will be distributed on-line.
Accordingly, the laboratory attendance might be scheduled for reduced groups of students or replaced by on-line activities.

Verification of learning

The evaluation of the student will occur by means of a written test aimed at verifying the basic knowledge of the topics dealt with in the course, followed by discussion for an in-depth analysis of selected points. The student will have to prove the knowledge peculiar to the course, both from a theoretical and a practical point of view; to be able of personal elaboration; to possess the required skills of communication.
The final ranking is attributed by means of a numerical evaluation expressed in thirtieths. It derives from the estimate (with equal weight) of the written test and the oral discussion, and will also keep into account the work that the student has carried out in the laboratory.
In the laboratory work, the student must show manual skills, ability in discovering interdisciplinar links, and capability to interact with other students in a positive way, fully obeying to security standards and carefully avoiding any risky behavior.
In formulating the final evaluation, the conceptual consistency, the correctness of the logic procedures for solving the proposed exercises, the adequateness of the solutions and a correct expression will be assessed. The former two aspects are mandatory for achieving the pass in the exam: higher ranking will be obtained by students matching all the aspects listed above. In order to get the highest evaluation (30/30 e lode), an excellent knowledge in each aspect dealt with in the course will be needed.

A detailed docimologic table is available on the teaching home page (Una dettagliata Tabella docimologica è disponibile sul sito docente (http://people.unica.it/massimilianoarca/files/2017/03/tabella_docimologica.pdf).

The exams procedures may undergo modifications depending on the evolution of the pandemic outbreak.

Texts

T1) P. Atkins, T. Overton, J. Rourke, M. Weller, F. Armstrong, “Chimica Inorganica”, II ed., Zanichelli.
T2) G. L. Miessler, D. A. Tarr, “Chimica Inorganica”, IV ed., Piccin.
T3) F. A. Cotton, G. Wilkinson, “Chimica Inorganica”, CEA
T4) Z. Szafran, R. M. Pike, M. M. Singh, “Microscale Inorganic Chemistry”, J. Wiley & Sons, Inc.
T5) G. Charlot, “Analisi Chimica Qualitativa”, Piccin
Further readings for each lab experience is provided and available at “http://people.unica.it/massimilianoarca”

More Information

Further readings for each lab experience is provided and available on line. Students will be enrolled in a MS-Team where all communications and links to available supporting information will be published. The official distribution platform is Adobe Connect.

Questionnaire and social

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