PART II.a – Physical chemistry Problem 1
... below which the chain does not bend. For polyethylene the Kuhn length is 3.5 lengths of C‐C bond and for polystyrene it is 5 C‐C bond lengths. d) Explain differences between Kuhn lengths for polyethylene and polystyrene and find end‐to‐end distance for both if each macromolecule has 10000 monomer ...
... below which the chain does not bend. For polyethylene the Kuhn length is 3.5 lengths of C‐C bond and for polystyrene it is 5 C‐C bond lengths. d) Explain differences between Kuhn lengths for polyethylene and polystyrene and find end‐to‐end distance for both if each macromolecule has 10000 monomer ...
Lecture 19: Quantization of the simple harmonic oscillator Phy851 Fall 2009
... • Let the ground state |ε0〉 have energy: ...
... • Let the ground state |ε0〉 have energy: ...
CHEM3117/CHEM3917 Spectroscopy and Quantum Chemistry
... Method, Predicting Molecular Structure and Thermochemistry. (E&R 27.8) Lecture 15: Applications of Computational Chemistry: Predicting Molecular Spectra. (E&R 27.9) Workshop 1: Computational Chemistry Workshop. H2O as an example Workshop 2: Computational Chemistry Workshop: Setting up the problem fo ...
... Method, Predicting Molecular Structure and Thermochemistry. (E&R 27.8) Lecture 15: Applications of Computational Chemistry: Predicting Molecular Spectra. (E&R 27.9) Workshop 1: Computational Chemistry Workshop. H2O as an example Workshop 2: Computational Chemistry Workshop: Setting up the problem fo ...
electric field spectroscopy of ultracold polar molecular dimers
... do with lasers. However, I do intend to discuss a kind of spectroscopy that is peculiar to polar molecules in an ultracold environment. It turns out that polar molecules at low temperatures respond really strongly to electric fields, particularly when the molecules collide. So, by monitoring the sca ...
... do with lasers. However, I do intend to discuss a kind of spectroscopy that is peculiar to polar molecules in an ultracold environment. It turns out that polar molecules at low temperatures respond really strongly to electric fields, particularly when the molecules collide. So, by monitoring the sca ...
Super-Shell Structure in Two-Component Dilute Fermionic Gases
... For small we have used a perturbative approach* to derive a traceformula for the U(3)→SO(3) transition. Further on we have derived a uniform traceformula for the diameter and circle orbits, valid for all values of . * Creagh, Ann. Phys. (N.Y.) 248, 60 (1996) ...
... For small we have used a perturbative approach* to derive a traceformula for the U(3)→SO(3) transition. Further on we have derived a uniform traceformula for the diameter and circle orbits, valid for all values of . * Creagh, Ann. Phys. (N.Y.) 248, 60 (1996) ...
CCR 19: Spectroscopic Notation
... principal (P term) state, the same limiting term as for the sharp series. Finally, the fundamental emission spectrum was the result of transitions from the higher fundamental (F terms) energy states to the lowest D term state, the limiting term for the fundamental series. In Figure SN-3 the principa ...
... principal (P term) state, the same limiting term as for the sharp series. Finally, the fundamental emission spectrum was the result of transitions from the higher fundamental (F terms) energy states to the lowest D term state, the limiting term for the fundamental series. In Figure SN-3 the principa ...
Pressure and Kinetic Energy
... classically allowed, they do not occur • As the temperature increases, the energy of the molecules __________ • In some collisions, the molecules have enough energy to excite to the first excited state • As the temperature continues to increase, more molecules are in excited states ...
... classically allowed, they do not occur • As the temperature increases, the energy of the molecules __________ • In some collisions, the molecules have enough energy to excite to the first excited state • As the temperature continues to increase, more molecules are in excited states ...
Van der Waals Forces Between Atoms
... and this is certainly zero, as are all the other leading terms. Baym (Lectures on Quantum Mechanics) concluded from this that there is no leading order energy correction between two hydrogen atoms if one of them is in the ground state. This is incorrect: the first excited state of the twoatom ...
... and this is certainly zero, as are all the other leading terms. Baym (Lectures on Quantum Mechanics) concluded from this that there is no leading order energy correction between two hydrogen atoms if one of them is in the ground state. This is incorrect: the first excited state of the twoatom ...
Document
... Thus Aeikx are eigenfunctions of the momentum operator with eigenvalues p = ±kћ. The particle in a box wavefunction ψ = D sin kx can be expressed as a linear combination of momentum eigenfunctions, i.e. ψ = D sin kx = D′ (eikx + e-ikx). A single measurement of the particle’s momentum must give a def ...
... Thus Aeikx are eigenfunctions of the momentum operator with eigenvalues p = ±kћ. The particle in a box wavefunction ψ = D sin kx can be expressed as a linear combination of momentum eigenfunctions, i.e. ψ = D sin kx = D′ (eikx + e-ikx). A single measurement of the particle’s momentum must give a def ...
Lecture 3
... If you have a system with two energy levels E1 and E2 where E2 > E1 then a photon of energy E = hf = E2 - E1 can cause a transition in the system from energy state 1 to 2. Similarly the system can decay from energy state 2 to 1 which will happen since it lowers the systems potential energy. Over a l ...
... If you have a system with two energy levels E1 and E2 where E2 > E1 then a photon of energy E = hf = E2 - E1 can cause a transition in the system from energy state 1 to 2. Similarly the system can decay from energy state 2 to 1 which will happen since it lowers the systems potential energy. Over a l ...
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.