Suchergebnis: Katalogdaten im Herbstsemester 2022

Chemie Master Information
Anorganische Chemie
529-0143-01LAspects of Modern Inorganic Chemistry: Concepts, Building Blocks, and PolymersW+6 KP3GH. Grützmacher, J. Grützmacher
KurzbeschreibungGeneral bonding concepts
AIM and ELF as descriptors of electronic structures
GCMT model, carbenes and carbene analogues, homo and heteronuclear unsaturated bonds
Electron precise cluster, electron deficient cluster, and special cluster
General concepts and definitions of inorganic polymers, polysilanes,
polysiloxanes, polyphosphazenes
LernzielThe course starts with an introduction into general concepts allowing to understand why main group element and transition metal compounds from the higher periods show different properties when compared to their lighter congeners. The Atom in Molecule (AIM) Theory and Electron Localization Function (ELF) will be introduced as means to interpret the electron density distribution in molecules. Carbenes and carbene analogues will be discussed as building blocks for compounds with unsaturated bonds which in turn may serve as precursors to inorganic polymers.
Electron counting rules allow to distinguish different type of clusters which can be divided into electron precise cluster, various electron deficient cluster (for example Wade-Mingos-Cluster), and special cluster.
An introduction into general concepts for syntheses and analyses of inorganic polymers will be given. Specifically, polysilanes, polysiloxanes, and polyphosphazenes will be discussed and possible applications of these polymers will be highlighted.
Recent literature will be provided and discussed jointly by the participants of the course (flipped classroom).

The man goal of the lecture is to provide a general understanding of the current literature in the field of modern inorganic chemistry with respect to building blocks used for the synthesis of cluster, polymers, and materials.
SkriptA handout of the presented material will be distributed to the participants of the course. Articles from recent literature will be provided and discussed in the course.
LiteraturOrginal literature is indicated in the course material.
Voraussetzungen / BesonderesBasis for the understanding of this lecture are the courses Allgemeine Chemie 1&2, and Anorganische Chemie 1: Übergangsmetallchemie.
Fachspezifische KompetenzenKonzepte und Theoriengeprüft
Verfahren und Technologiengeprüft
Methodenspezifische KompetenzenAnalytische Kompetenzengeprüft
Medien und digitale Technologiengefördert
Soziale KompetenzenKommunikationgefördert
Kooperation und Teamarbeitgefördert
Menschenführung und Verantwortunggefördert
Selbstdarstellung und soziale Einflussnahmegefördert
Sensibilität für Vielfalt gefördert
Persönliche KompetenzenAnpassung und Flexibilitätgefördert
Kreatives Denkengeprüft
Kritisches Denkengeprüft
Integrität und Arbeitsethikgefördert
Selbstbewusstsein und Selbstreflexion gefördert
Selbststeuerung und Selbstmanagement gefördert
Physikalische Chemie
529-0443-01LAdvanced Magnetic Resonance Information
Findet dieses Semester nicht statt.
W+6 KP3GG. Jeschke, A. Barnes
KurzbeschreibungThe course is for advanced students and covers selected topics from magnetic resonance spectroscopy. This semester, the lecture will introduce and discuss the dynamics of electron-nuclear spin systems and experiments based on hyperfine interactions in electron paramagnetic resonance (EPR) spectroscopy and dynamic nuclear polarization (DNP) for sensitivity enhancement in NMR.
LernzielThe course aims at enabling students to understand and design experiments that are based on hyperfine coupling between electron and nuclear spins. This includes analytical and numerical treatment of spin dynamics as well as instrumental aspects. Additionally, students will learn how to use hyperfine couplings to increase sensitivity in solid state NMR via dynamic nuclear polarization (DNP), with an emphasis on the instrumentation required to perform DNP with magic angle spinning (MAS) NMR.
InhaltThe course starts with a recapitulation of density operator and product operator formalism with special emphasis on electron-nuclear spin systems in the solid state. We then treat basic phenomena, such as passage effects, avoided level crossings, and hyperfine decoupling. Based on these foundations, we discuss polarization transfer from the electron to the nuclear spin and back, as well as spin diffusion as a mechanism for polarizing nuclear spins beyond the immediate vicinity of the electron spin. The second half of the course will cover dynamic nuclear polarization (DNP), with a focus on instrumentation required to perform pulsed DNP with magic angle spinning (MAS) at ultra-high magnetic fields. A review of salient interactions in the NMR solid state NMR Hamiltonian, DNP mechanisms, and electron decoupling with MAS will motivate discussions of technology development. Specific technologies to be covered include, but are not limited to, frequency agile gyrotron oscillators, corrugated waveguides, microwave lenses, strategies for creating pulsed and frequency chirped microwaves, spherical MAS rotors and supporting stators, high temperature superconductor (HTS) based compact magnets, and radio-frequency circuits for multinuclear spin control and detection.

Prerequisite: A basic knowledge of Magnetic Resonance, e.g. as covered in the Lecture Physical Chemistry IV, or the book "Spin Dynamics" by Malcolm Levitt.
SkriptA script which covers the topics will be distributed in the lecture and will be accessible through the course Moodle
529-0027-00LAdvanced Magnetic Resonance - Solid State NMR Information W+6 KP3GM. Ernst
KurzbeschreibungThe course is for advanced students and introduces and discusses the theoretical foundations of solid-state nuclear magnetic resonance (NMR).
LernzielThe aim of the course is to familiarize the students with the basic concepts of modern high-resolution solid-state NMR. Starting from the mathematical description of spin dynamics, important building blocks for multi-dimensional experiments are discussed to allow students a better understanding of modern solid-state NMR experiments. Particular emphasis is given to achiving high spectral resolution.
InhaltThe basic principles of NMR in solids will be introduced. After the discussion of basic tools to describe NMR experiments, basic methods and experiments will be discussed, e.g., magic-angle spinning, cross polarization, decoupling, and recoupling experiments. Such basic building blocks allow a tailoring of the effective Hamiltonian to the needs of the experiment. These basic building blocks can then be combined in different ways to obtain spectra that contain the desired information.
SkriptA script which covers the topics will be distributed in the lecture and will be accessible through the web page Link
Voraussetzungen / BesonderesPrerequisite: A basic knowledge of NMR, e.g. as covered in the Lecture Physical Chemistry IV, or the book by Malcolm Levitt.
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