ID:
503329
Duration (hours):
48
CFU:
6
SSD:
CHIMICA ORGANICA
Year:
2025
Overview
Date/time interval
Primo Semestre (22/09/2025 - 16/01/2026)
Syllabus
Course Objectives
The course aims to provide the basic knowledge of the most common spectroscopic techniques (IR, UV, NMR and Mass) for structural determinations applied to organic molecules. At the end of the course it is expected that the student will be able to analyze the spectroscopic data and to propose a structure of an unknown molecule that is in agreement with them.
Course Prerequisites
Inorganic Chemistry, Physic and Organic Chemistry foundational knowledge.
Teaching Methods
Lectures with constant projection on screen of experimental spectroscopic data, classroom exercises on the interpretation of UV, IR, NMR and MS spectra with discussion led by the teacher.
Assessment Methods
The exam consists of an oral test. The oral exam will begin with the analysis of the spectroscopic data obtained from an unknown organic compound and will continue with the discussion on the techniques and instrumentation used for the analysis.
Texts
S. Duckett and B. Gilbert, Foundations of Spectroscopy, Oxford University Press, 2000.
D. H. Williams, I. Fleming, Spectroscopic Methods in Organic Chemistry, McGraw - Hill, 1995
M. Hesse, H. Meier, B. Zeeh, Spectroscopic Methods in Organic Chemistry, 2nd Edition, Georg Thieme Verlag, 2010.
R.M. Silverstein, F. X. Webster, D. Kiemle, D. L. Bryce, Spectrometric Identification of Organic Compounds, 8th Edition, Wiley, 2020.
D. H. Williams, I. Fleming, Spectroscopic Methods in Organic Chemistry, McGraw - Hill, 1995
M. Hesse, H. Meier, B. Zeeh, Spectroscopic Methods in Organic Chemistry, 2nd Edition, Georg Thieme Verlag, 2010.
R.M. Silverstein, F. X. Webster, D. Kiemle, D. L. Bryce, Spectrometric Identification of Organic Compounds, 8th Edition, Wiley, 2020.
Contents
The electromagnetic spectrum. Absorption and emission. Spectral regions, electronic transitions and
intensity. Ultraviolet-visible spectroscopy: recording and interpreting the spectra, applications,
conjugated dienes, polyenes and aromatic compounds. Fluorescence and Phosphorescence. Infrared
spectroscopy: vibrational excitation, types of vibrational excitation, stretching and bending,
overtones and harmonics, dependence of the IR spectrum on molecular structure, analysing spectra,
examples. Nuclear magnetic resonance: the basis, instrumentation, chemical shifts, resonance
intensities, spin-spin coupling, example of 1H and 13C spectra of organic molecules.
Techniques in organic mass spectrometry. Basic components and processes of ionisation, separation,
detection. Formation of the mass spectrum: molecular ion, isotopic peaks, product ions (from simple
cleavage and from rearrangement), peaks from ion-molecule reactions, peaks formed by metastable ion
dissociations. Interpretation of mass spectra (electron ionisation EI); molecular mass and structure
understanding. Fundamentals of ion fragmentation. Practicals: behaviour of the main classes of organic
substances.
intensity. Ultraviolet-visible spectroscopy: recording and interpreting the spectra, applications,
conjugated dienes, polyenes and aromatic compounds. Fluorescence and Phosphorescence. Infrared
spectroscopy: vibrational excitation, types of vibrational excitation, stretching and bending,
overtones and harmonics, dependence of the IR spectrum on molecular structure, analysing spectra,
examples. Nuclear magnetic resonance: the basis, instrumentation, chemical shifts, resonance
intensities, spin-spin coupling, example of 1H and 13C spectra of organic molecules.
Techniques in organic mass spectrometry. Basic components and processes of ionisation, separation,
detection. Formation of the mass spectrum: molecular ion, isotopic peaks, product ions (from simple
cleavage and from rearrangement), peaks from ion-molecule reactions, peaks formed by metastable ion
dissociations. Interpretation of mass spectra (electron ionisation EI); molecular mass and structure
understanding. Fundamentals of ion fragmentation. Practicals: behaviour of the main classes of organic
substances.
Course Language
Italian
More information
Since the course is chosen by the student, it is not possible to predict the extent of attendance, however as in previous years, the teacher guarantees the transmission of all the projected material and lecture notes. For working students (or certified equivalent situations), video lessons and specific support will be provided.
Degrees
Degrees
Chemistry
Bachelor’s Degree
3 years
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People
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