C5030 Chemical Structure-sem.

Faculty of Science
Autumn 2010
Extent and Intensity
0/1/0. 1 credit(s) (fasci plus compl plus > 4). Type of Completion: z (credit).
Teacher(s)
doc. RNDr. Pavel Brož, Ph.D. (seminar tutor)
Guaranteed by
prof. RNDr. Miroslav Holík, CSc.
Department of Chemistry – Chemistry Section – Faculty of Science
Timetable
Mon 10:00–10:50 B11/205
Prerequisites
( C3401 Physical Chemistry I && C4402 Physical Chemistry II )||( C3140 Physical Chemistry I && C4020 Advanced Physical Chemistry )|| C4660 Basic Physical Chemistry && NOW( C5020 Chemical Structure )
Contemporaly hearing of the lecture Chemical Structure (C5020).
Course Enrolment Limitations
The course is also offered to the students of the fields other than those the course is directly associated with.
fields of study / plans the course is directly associated with
there are 16 fields of study the course is directly associated with, display
Course objectives
Practical exercises from the topics of the lecture Chemical structure (C5020). Students will utilize the gained information from spectroscopic methods (mass spectrometry, diffraction analysis, IR spectrometry, NMR etc.) for identification of chemical structure and will be able to propose an adequate procedure for study of chemical substances and to interpret the gained data.
Syllabus
  • 1. Electron diffraction and rtg. irradiation. Electrons particles and irradiation. Quantum numbers. Diffraction on the set of planes (Huygens and Ewald constructions). Direct and reciprocal lattice. Interference (Laue and Bragg method). Radial distribution function. 2. Absorption of electrons and gamma irradiation. Mass spectrometry (ionization methods, resolution, detection, group of molecular peaks, main types of fragmentation). Moessbauer spectroscopy (isotopic shift. quadrupolar splitting). 3. Photoelectron spectroscopy. Absorption of rtg. photon (XPS, ESCA), absorption of electrons (Auger) and UV quanta (UPS). Rtg. fluorescence. 4. Absorption of UV and visible light. Electron spectroscopy (Franck-Condom principle). Vibration and rotation structure of energy diagrams. Thermal relaxation, fluorescence, phosphorescence (types of electron transitions, particle in one-dimensional potential well, chromophores, auxochromes, external and internal effects on shifts of absorption lines. Use of electron spectroscopy in structural and quantitative analysis (Lambert-Beer law). 5. Molecules in electric field (polarizability, induced and permanent dipole moment, permitivity of dielectricum). Induced and orientation polarization. Clasius-Mossoti and Debye equations. Dipole moments (Halverstadt-Kumler and Gugenheim-Smith methods). Index of refraction and molar refraction. 6. Electrons in electric field of light wave. Rayleigh and Raman dispersion. Raman spectroscopy (anisotropy of polarizability, depolarization, Stokes and anti-Stokes transitions, vibration and rotational Raman spectra). 7. Absorption of IR an MW irradiation. IR vibrations (harmonic and anharmonic oscillator, energy on vibration levels, types of normal vibrations). Transfers among vibration energy levels. NIR in qualitative and quantitative analysis. Vibration-rotation and rotation spectra (elastic and non-elastic rotator, rotation-distortion constant). 8. Transfer of the light through material. Diffraction of light (Snellius law). Measurement of index of diffraction, its dependence on wavelength and density. Effect of the electric field (Kerr effect, Kerr factor, Kerr constant and its use in structural analysis). 9. Optical activity. Specific rotation, dependence on wavelength, Drude equation, Cotton effect, optical rotation dispersion, circular bicroism. Optical rotation and structure (absolute value, octant rule). 10. Molecules in magnetic field. Magnetic induction, magnetization, anisotropy of magnetic susceptibility. Dielectrics, paramagnetics, ferromagnetics (Curie law, Weiss correction, Curie temperature). 11. Electron paramagnetic resonance spectroscopy. Electron in magnetic field, resonance condition, Lande g-factor, hyperfine splitting, multiplicity of signals. 12. Nuclear magnetic resonance spectroscopy. Nuclei in magnetic field, nuclear spin, quantum numbers, condition of resonance, coupling constant (substitution, sterical and solvatation components).Coupling constant, stepwise reduction of spin multiplets. Number of NMR signals and symmetry of molecule. Intensity of signals and its use in quantitative analysis.
Literature
  • ATKINS, P. W. Physical chemistry. 6th ed. Oxford: Oxford University Press, 1998, xvi, 1014. ISBN 0198501013. info
Teaching methods
Computing seminar in the field of spectroscopic methods for identification of chemical structure with practical outputs.
Assessment methods
Participation in the seminar is necessary for gaining a credit. Furthermore, successful solution at least a half of examples from a final test is required.
Language of instruction
Czech
Follow-Up Courses
Further comments (probably available only in Czech)
The course can also be completed outside the examination period.
The course is taught annually.
The course is also listed under the following terms Autumn 2007 - for the purpose of the accreditation, Autumn 2010 - only for the accreditation, Autumn 2000, Autumn 2001, Autumn 2002, Autumn 2003, Autumn 2004, Autumn 2005, Autumn 2006, Autumn 2007, Autumn 2008, Autumn 2009, Autumn 2011, Autumn 2011 - acreditation, Autumn 2012, Autumn 2013, Autumn 2014, Autumn 2015, Autumn 2016, autumn 2017, Autumn 2018, Autumn 2019, Autumn 2020, autumn 2021, Autumn 2022, Autumn 2023, Autumn 2024.
  • Enrolment Statistics (Autumn 2010, recent)
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