Rotational spectroscopy
... • Electromagnetic radiation can interact with a molecule to change the rotational state. • Typical rotational transitions occur in the microwave region of the electromagnetic spectrum. • There is a selection rule that states that the quantum number can change only by + or - 1 for an allowed rotation ...
... • Electromagnetic radiation can interact with a molecule to change the rotational state. • Typical rotational transitions occur in the microwave region of the electromagnetic spectrum. • There is a selection rule that states that the quantum number can change only by + or - 1 for an allowed rotation ...
Nuclear and Particle Physics
... nucleons move independently in potential well allowed energy states determined by V(r) ...
... nucleons move independently in potential well allowed energy states determined by V(r) ...
10. Molecules and Solids
... Vibrational Motion: A Simple Harmonic Oscillator The Schrödinger Equation can be separated into equations for the positions of the electrons and those of the nuclei. The simple harmonic oscillator accurately describes the nuclear positions of a diatomic molecule, as well as more complex molecules. ...
... Vibrational Motion: A Simple Harmonic Oscillator The Schrödinger Equation can be separated into equations for the positions of the electrons and those of the nuclei. The simple harmonic oscillator accurately describes the nuclear positions of a diatomic molecule, as well as more complex molecules. ...
Questions - TTU Physics
... a. Assume that, for calculating vibrational properties, each H2 molecule can be treated as a quantum mechanical simple harmonic oscillator with natural frequency ω. Find an expression for the vibrational partition function Zvib of this gas. b. Assume that, for calculating rotational properties, an H ...
... a. Assume that, for calculating vibrational properties, each H2 molecule can be treated as a quantum mechanical simple harmonic oscillator with natural frequency ω. Find an expression for the vibrational partition function Zvib of this gas. b. Assume that, for calculating rotational properties, an H ...
Quiz 9
... The Pauli Exclusion Principle states that more than one fermion – particles with 21 -integer spin – cannot exist in the exact same quantum mechanical state; i.e. at least one quantum number must differ. As a result, for any energy level, n, there are l = 0, 1, . . . , (n − 1) orbital angular momentu ...
... The Pauli Exclusion Principle states that more than one fermion – particles with 21 -integer spin – cannot exist in the exact same quantum mechanical state; i.e. at least one quantum number must differ. As a result, for any energy level, n, there are l = 0, 1, . . . , (n − 1) orbital angular momentu ...
Exam 2 Sol/81/F01
... (c) There is a 2S1/2 state 40 040 cm–1 above the ground state. What is its electron configuration most likely to be? Two possibilities should come to mind: 1s2 2s1 2p2 and 1s2 2s2 3s1. The first leads to several possible states, but with the possibility that the three 2s and 2p electrons could be al ...
... (c) There is a 2S1/2 state 40 040 cm–1 above the ground state. What is its electron configuration most likely to be? Two possibilities should come to mind: 1s2 2s1 2p2 and 1s2 2s2 3s1. The first leads to several possible states, but with the possibility that the three 2s and 2p electrons could be al ...
LEP 5.1.03 -15 Franck-Hertz experiment with Ne-tube
... He also postulated that only those orbits occur for which the angular momentum of the electron is an integral multiple of h/2p, i.e. n*h/2p, where n is an integer and h is Planck’s constant. Bohr’s picture of electrons in discrete states with transitions among those states producing radiation whose ...
... He also postulated that only those orbits occur for which the angular momentum of the electron is an integral multiple of h/2p, i.e. n*h/2p, where n is an integer and h is Planck’s constant. Bohr’s picture of electrons in discrete states with transitions among those states producing radiation whose ...
lecture #7 ppt
... A light source, Now W is not thermal energy density but the energy density of the light source (assumed to be large enough that we can neglect the thermal ...
... A light source, Now W is not thermal energy density but the energy density of the light source (assumed to be large enough that we can neglect the thermal ...
lecture1
... Double bond stretching region (λ = 5.4 – 6.4 µm). This include C = C, C = O, C = N with C = O at 5.9 µm. Acids (-C=O-OH) and esters (-C=O-OR) absorb at lower wavelength while amides (-C=O-NH2) absorb at longer wavelength with two peaks, hence discrimination is possible. These three regions are the “ ...
... Double bond stretching region (λ = 5.4 – 6.4 µm). This include C = C, C = O, C = N with C = O at 5.9 µm. Acids (-C=O-OH) and esters (-C=O-OR) absorb at lower wavelength while amides (-C=O-NH2) absorb at longer wavelength with two peaks, hence discrimination is possible. These three regions are the “ ...
03-02BohrAtom
... Bohr’s Quantum Atom Assumptions of Bohr’s model: 1. Only certain orbits are allowed “stationary states” ...
... Bohr’s Quantum Atom Assumptions of Bohr’s model: 1. Only certain orbits are allowed “stationary states” ...
Balmer Series
... (Note: run the spectrum tube for no more than 30 seconds with 30 seconds cooling period.) 1. Looking into the spectrometer of ionized hydrogen gas, estimate the λ of the red, blue, and violet bright lines to the nearest 10 nm. [Note: 5000 Angstroms = 500 nm and 1 nm = 1 x 10-9 m] 2. Calculate for ea ...
... (Note: run the spectrum tube for no more than 30 seconds with 30 seconds cooling period.) 1. Looking into the spectrometer of ionized hydrogen gas, estimate the λ of the red, blue, and violet bright lines to the nearest 10 nm. [Note: 5000 Angstroms = 500 nm and 1 nm = 1 x 10-9 m] 2. Calculate for ea ...
Franck–Condon principle
The Franck–Condon principle is a rule in spectroscopy and quantum chemistry that explains the intensity of vibronic transitions. Vibronic transitions are the simultaneous changes in electronic and vibrational energy levels of a molecule due to the absorption or emission of a photon of the appropriate energy. The principle states that during an electronic transition, a change from one vibrational energy level to another will be more likely to happen if the two vibrational wave functions overlap more significantly.