2020-2021 / CHIM9291-1

Structural analysis

Duration

20h Th, 25h Pr

Number of credits

 Bachelor in chemistry4 crédits 

Lecturer

Christian Damblon, Loïc Quinton

Coordinator

Loïc Quinton

Language(s) of instruction

French language

Organisation and examination

Teaching in the second semester

Schedule

Schedule online

Units courses prerequisite and corequisite

Prerequisite or corequisite units are presented within each program

Learning unit contents

The course aims to give students a logical method of identifying unknown molecules based on a set of spectra. The course emphasizes the complementarity of physico-chemical methods, including mass spectrometry, infrared spectroscopy, UV-Visible spectroscopy and nuclear magnetic resonance. The methods are introduced successively, by means of examples whose resolution requires the cumulative contribution of the techniques introduced at this moment of the course. Mass spectrometry and associated methods (MS / MS) are essential methods widely used in the chemical industry and control laboratories. It requires a good knowledge of basic chemistry and reactivity in organic chemistry as well as the interpretation of isotopic distributions. Nuclear magnetic resonance is an important second part of the course. It comes in addition to the notions introduced in Organic Chemistry and Physical Chemistry. The use of 1 H and 13 C NMR as well as the basic notions of two-dimensional NMR (2D NMR) are amply illustrated. Examples also include organometallic compounds with non-zero spin central atoms. The course gives a large part to the resolution of exercises.

Learning outcomes of the learning unit

The objectives of the course are to gather the theoretical and experimental tools necessary to the determination of the structure of organic, organometallic and biological molecules and to describe the method of optimal use of spectroscopic information to determine an univocal structure, at least until connectivities.

Prerequisite knowledge and skills

General Organic Chemistry
General Physical Chemistry

Planned learning activities and teaching methods

Problem solving sessions of increasing complexity, in sync with the techniques gradually seen during, under the supervision of an assistant. These exercises prepare for a working method allowing for proper management of time and information. Access to spectral databases (ULgSpectra) and familiarization with measuring instruments will also be provided

Mode of delivery (face to face, distance learning, hybrid learning)

Reference books More Spectroscopic Problems in Organic Chemistry (Spectroscopy in Chemical Education, Baker et al, Heyden, 1967) Organic Structure from Spectra (Sternell et Kalman, Wiley, 1987) Spectrometric Identification of Organic Compounds (Silverstein, Bassler et Morill, Wiley, Ed7, 2005)

Organisational adjustments related to the current health context

During the most delicate periods of the health crisis, the theoretical course and the exercise sessions will be offered completely online in the form of live videoconferences or pre-recorded capsules.
Practices will be kept in person as much as possible, under optimal security conditions.
The exam is held in person, unless prohibited by the authorities. In this extreme case, the exam would then be organized online either via the eCampus platform or using other tools which will be communicated later.

Recommended or required readings

Reference books More Spectroscopic Problems in Organic Chemistry (Spectroscopy in Chemical Education, Baker et al, Heyden, 1967) Organic Structure from Spectra (Sternell et Kalman, Wiley, 1987) Spectrometric Identification of Organic Compounds (Silverstein, Bassler et Morill, Wiley, Ed7, 2005)

Assessment methods and criteria

Below you will find information on the evaluation methods planned for in-person and remote exams as well as those planned for hybrid sessions. Depending on how the health crisis evolves, the chosen method will be communicated to you no later than one month before the start of the exam session.

Any session :

- In-person

written exam ( open-ended questions )

- Remote

written exam ( open-ended questions )

- If evaluation in "hybrid"

preferred in-person


Additional information:

Written exam. Knowlege and understanding of the theory and basic principle will be evaluated. the ability to apply the theory will be evaluated by the analysis of unknown compounds using multiple spectra.
 

Work placement(s)

Organizational remarks

Contacts

Pr. Christian Damblon Institut de Chimie, Bât. B6, 4000 Liège 1, Sart Tilman e-mail: c.damblon@ulg.ac.be


Prof. Loïc Quinton  Laboratory of Mass Spectrometry -  Biological Chemistry MolSys Research Unit Allée du six Aout 11 - Quartier Agora B4000 -Liège 1 - Belgium Tel +32 4 366 3679 loic.quinton@uliege.be
Sophie Rappe, doctorante, Assistante e-mail:sophie.rappe@ulg.ac.be