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- https://chem.libretexts.org/Courses/University_of_California_Davis/UCD_Chem_110A%3A_Physical_Chemistry__I/UCD_Chem_110A%3A_Physical_Chemistry_I_(Larsen)/Lectures/15%3A_3D_Rotations_and_Microwave_SpectroscopyWe continue our discussion of the solutions to the 3D rigid rotor: The wavefunctions (the spherical harmonics), the energies (and degeneracies) and the TWO quantum numbers (J and m_J) and thei...We continue our discussion of the solutions to the 3D rigid rotor: The wavefunctions (the spherical harmonics), the energies (and degeneracies) and the TWO quantum numbers (J and m_J) and their ranges. We discussed that the components of the angular momentum operator are subject to the Heisenberg uncertainty principle and cannot be know to infinite precision simultaneously, however the magnitude of angular momentum and any component can be. This results in the vectoral representation.
- https://chem.libretexts.org/Courses/University_of_California_Davis/UCD_Chem_110A%3A_Physical_Chemistry__I/UCD_Chem_110A%3A_Physical_Chemistry_I_(Larsen)/LecturesUC Davis: Chemistry 110A Physical Chemistry I: Introduction to Quantum Mechanics Fall 2021: Delmar Larsen Agenda ● Lectures ● Homework ● Worksheets Thumbnail: Michael Faraday delivering a Christmas le...UC Davis: Chemistry 110A Physical Chemistry I: Introduction to Quantum Mechanics Fall 2021: Delmar Larsen Agenda ● Lectures ● Homework ● Worksheets Thumbnail: Michael Faraday delivering a Christmas lecture at the Royal Institution. 1856. (Public Domain).
- https://chem.libretexts.org/Courses/University_of_California_Davis/UCD_Chem_110A%3A_Physical_Chemistry__I/UCD_Chem_110A%3A_Physical_Chemistry_I_(Larsen)/Lectures/22%3A_Perturbation_TheoryThe basic steps perturbation theory is discussed including its application to the energy and wavefunctions. A reminder of the orbital approximation was discussed (where an N-electron wavefunction can...The basic steps perturbation theory is discussed including its application to the energy and wavefunctions. A reminder of the orbital approximation was discussed (where an N-electron wavefunction can be described as N 1-electron orbitals that resemble the hydrogen atom wavefunctions). A consequence of the orbital approximation is the ability to construct electron configurations which are filled by the aufbau principle. However, the aufbau principle is only a guideline and not a hardfast rule.
- https://chem.libretexts.org/Courses/University_of_Florida/CHM2047%3A_One-Semester_General_Chemistry_(Kleiman)/01%3A__Introduction/1.06%3A_First_attempts_to_model_the_H_atomInitial attempts to understand and model the H-atom provided an explanation of the atomic line-spectra but left many questions unanswered.
- https://chem.libretexts.org/Courses/University_of_California_Davis/UCD_Chem_110A%3A_Physical_Chemistry__I/UCD_Chem_110A%3A_Physical_Chemistry_I_(Koski)/Depreciated/Homework_(2017)/Homework_6B%3A_ab_initio_CalculationsHomework 6B introduces modern ab initio calculations via the ChemCompute website. Students will use predict the potential energy curve for the dissociation of H_2 which can be used to predict the bond...Homework 6B introduces modern ab initio calculations via the ChemCompute website. Students will use predict the potential energy curve for the dissociation of H_2 which can be used to predict the bond energy and bond length of the bond of molecular hydrogen. The spring constant can be extracted from this calculation, but will not be addressed in this assignment. Due 10/31/16.
- https://chem.libretexts.org/Courses/University_of_California_Davis/UCD_Chem_110A%3A_Physical_Chemistry__I/UCD_Chem_110A%3A_Physical_Chemistry_I_(Larsen)/Lectures/10%3A_Expectation_values_2D-PIB_and_Heisenberg_Uncertainty_Principle_(Lecture)We extend the 1D particle in a box to the 2-D and 3D cases. From this we identified a few interesting phenomena including multiple quantum numbers and degeneracy where multiple wavefunctions share th...We extend the 1D particle in a box to the 2-D and 3D cases. From this we identified a few interesting phenomena including multiple quantum numbers and degeneracy where multiple wavefunctions share the identical energy. We were able to provide a quantitative backing in using the Heisenberg Uncertainty principle from wavefuctions in terms of the standard deviations and we ended the lecture on the five postulates of quantum mechanics.
- https://chem.libretexts.org/Courses/BethuneCookman_University/BCU%3A_CH_332_Physical_Chemistry_II/Workgroup_Activities/Workgroup_5%3A_Translation_Partition_FunctionDeriving the Translation Partition Function.
- https://chem.libretexts.org/Courses/University_of_California_Davis/Chem_205%3A_Symmetry_Spectroscopy_and_Structure/01%3A_Basics_of_Spectroscopy/1.03%3A_Different_types_of_SpectroscopyHere's a summary of some of the most common and widely used types of spectroscopy: Different types of spectroscopy focus on the absorption, emission, or scattering of light by molecules or atoms. The ...Here's a summary of some of the most common and widely used types of spectroscopy: Different types of spectroscopy focus on the absorption, emission, or scattering of light by molecules or atoms. The amount of photons that goes through the cuvette and into the detector is dependent on the length of the cuvette and the concentration of the sample.
- https://chem.libretexts.org/Courses/Remixer_University/Construction_Guide_for_LibreTexts_2e/10%3A_Page_Settings/10.07%3A_TagsIf remixing has been used to create a page, the author metatag should have been carried forward and the acknowledgement at the bottom of the page should reflect this. This page titled 10.7: Tags is sh...If remixing has been used to create a page, the author metatag should have been carried forward and the acknowledgement at the bottom of the page should reflect this. This page titled 10.7: Tags is shared under a not declared license and was authored, remixed, and/or curated by Your Name and Institution. & My name and Institution via source content that was edited to the style and standards of the LibreTexts platform.
- https://chem.libretexts.org/Courses/Remixer_University/Construction_Guide_for_LibreTexts_2e/02%3A_A_Framework_for_Designing_Online_Texts/2.02%3A_Content_on_LibreTextsA textbook starts with some thoughts about content. What is it we want to teach? This part of CAP is obviously critical - but it is the least important to discuss in general for a few reasons: (1) Eac...A textbook starts with some thoughts about content. What is it we want to teach? This part of CAP is obviously critical - but it is the least important to discuss in general for a few reasons: (1) Each course within each discipline is different; (2) each professor will want to cover different things in different levels of depth; and (3) it is mostly the same as what you would find in a traditional hardcopy textbook.
- https://chem.libretexts.org/Courses/BethuneCookman_University/BCU%3A_CH_332_Physical_Chemistry_II/Workgroup_Activities/Workgroup_1%3A_Valence_Bond_Orbitals_for_HydrogenA quantum description of bonding in molecules requires generating the wavefunctions that are solutions to the multi-body (involving both nuclei and electrons) Schrödinger equation. These wavefunctions...A quantum description of bonding in molecules requires generating the wavefunctions that are solutions to the multi-body (involving both nuclei and electrons) Schrödinger equation. These wavefunctions must describe each electron as accurately as quantum mechanics can. The two theories commonly used in constructing these wavefunctions are valence bond (VB) theory and molecular orbital (MO) theory. This activity addresses a topical application of these theories to diatomic hydrogen.
