Les infos clés
En résumé
Knowing the geometrical structure of the molecules around us is one of the most important and fundamental issues in the field of chemistry. This course introduces the two primary methods used to determine the geometrical structure of molecules: molecular spectroscopy and gas electron diffraction.
In molecular spectroscopy, molecules are irradiated with light or electric waves to reveal rich information, including:
- Motions of electrons within a molecule (Week 1),
- Vibrational motions of the nuclei within a molecule (Week 2), and
- Rotational motions of a molecule (Week 3).
In the gas electron diffraction method, molecules are irradiated with an accelerated electron beam. As the beam is scattered by the nuclei within the molecule, the scattered waves interfere with each other to generate a diffraction pattern. In week 4, we study the fundamental mechanism of electron scattering and how the resulting diffraction images reveal the geometrical structure of molecules.
By the end of the course, you will be able to understand molecular vibration plays an important role in determining the geometrical structure of molecules and gain a fuller understanding of molecular structure from the information obtained by the two methodologies.
FAQ
Do I need to buy a textbook?
No, you can learn the contents without any textbooks. However, if you hope to learn more on the subjects treated in this course, you are recommended to read the textbook introduced below:
Kaoru Yamanouchi, “Quantum Mechanics of Molecular Structures,” Springer-Verlag, 2012.
Les prérequis
The basics of quantum mechanics
Le programme
- Two major methods to determine the geometrical structure of molecules in the gas phase: molecular spectroscopy and gas electron diffraction
- How to quantize various motions of molecules, extract the quantized energy levels, and determine the geometrical structure of molecules from the spectrum
- The fundamental mechanism of electron scattering on the basis of quantum mechanics and how to determine the geometrical structure of molecules from gas electron diffraction images
Les intervenants
Kaoru Yamanouchi
Professor of Chemistry
The University of Tokyo
Le concepteur
La plateforme
EdX est une plateforme d'apprentissage en ligne (dite FLOT ou MOOC). Elle héberge et met gratuitement à disposition des cours en ligne de niveau universitaire à travers le monde entier. Elle mène également des recherches sur l'apprentissage en ligne et la façon dont les utilisateurs utilisent celle-ci. Elle est à but non lucratif et la plateforme utilise un logiciel open source.
EdX a été fondée par le Massachusetts Institute of Technology et par l'université Harvard en mai 2012. En 2014, environ 50 écoles, associations et organisations internationales offrent ou projettent d'offrir des cours sur EdX. En juillet 2014, elle avait plus de 2,5 millions d'utilisateurs suivant plus de 200 cours en ligne.
Les deux universités américaines qui financent la plateforme ont investi 60 millions USD dans son développement. La plateforme France Université Numérique utilise la technologie openedX, supportée par Google.
