A molecular vibration is a periodic motion of the atoms of a molecule relative to each other, such that the center of mass of the molecule remains unchanged...

Each normal mode of molecular vibration has a symmetry which forms a basis for one irreducible representation of the molecular symmetry group. For example...

is molecular vibration, which corresponds to internal motions of the atoms such as bond stretching and bond angle variation. The molecular vibrations are...

measuring molecular vibrations using inelastic electron tunneling as Turin claimed, rather than responding to molecular keys fitting molecular locks, working...

Rotational–vibrational spectroscopy is a branch of molecular spectroscopy that is concerned with infrared and Raman spectra of molecules in the gas phase...

modes of molecular vibrations. The mid-infrared, approximately 4,000–400 cm−1 (2.5–25 μm) is generally used to study the fundamental vibrations and associated...

molecules Molecular biology Molecular design software Molecular engineering Molecular geometry Molecular Hamiltonian Molecular ion Molecular modelling...

included translational and, contrary to Krönig, also rotational and vibrational molecular motions. In this same work he introduced the concept of mean free...

vibrationally excited molecule. Physics portal Born–Oppenheimer approximation Electrostatic deflection (molecular physics/nanotechnology) Molecular energy...

In chemistry and physics, a molecular entity, or chemical entity, is "any constitutionally or isotopically distinct atom, molecule, ion, ion pair, radical...

quantum number. An assumption underlying these expressions is that the molecular vibration follows simple harmonic motion. In the harmonic approximation the...

states. Molecular spectra can be obtained due to electron spin states (electron paramagnetic resonance), molecular rotations, molecular vibration, and electronic...

solvent. Understanding vibrational solvatochromism helps researchers to characterize molecular environments and study molecular dynamics in different solvents...

spectroscopy is a branch of molecular spectroscopy concerned with vibronic transitions: the simultaneous changes in electronic and vibrational energy levels of a...

the number of vibrational modes is 3N-5, whereas for a non-linear molecule the number of vibrational modes is 3N-6. Molecular vibrational energy is known...

undesirable, leading to excessive vibrations or even structural failure in some cases. All systems, including molecular systems and particles, tend to vibrate...

Vibrational energy relaxation, or vibrational population relaxation, is a process in which the population distribution of molecules in quantum states...

mode of vibration is characterized by a modal frequency and a mode shape. It is numbered according to the number of half waves in the vibration. For example...

different vibrational and rotational energy levels are also involved. Roughly speaking, a molecular energy state (i.e., an eigenstate of the molecular Hamiltonian)...

quantum chemistry and molecular physics, the Born–Oppenheimer (BO) approximation is the best-known mathematical approximation in molecular dynamics. Specifically...

higher electronic state and vibrational level to a lower electronic state and vibrational level (typically, many vibrational levels are involved in an excited...

In molecular spectroscopy, a Jablonski diagram is a diagram that illustrates the electronic states and often the vibrational levels of a molecule, and...

In the field of molecular modeling, docking is a method which predicts the preferred orientation of one molecule to a second when a ligand and a target...

Atomic, molecular, and optical physics (AMO) is the study of matter–matter and light–matter interactions, at the scale of one or a few atoms and energy...

A molecular cloud, sometimes called a stellar nursery (if star formation is occurring within), is a type of interstellar cloud, the density and size of...

rules for fundamental vibrational transitions Cotton, Chapter 10 Molecular Vibrations Cotton p. 327 Califano, S. (1976). Vibrational states. Wiley. ISBN 0-471-12996-8...

trigonal bipyramidal, exhibit heavier vibration. The mechanism used is similar to the Berry mechanism. Some molecular compounds that adopt square pyramidal...

although X-rays can also be used. The laser light interacts with molecular vibrations, phonons or other excitations in the system, resulting in the energy...

Molecular dynamics (MD) is a computer simulation method for analyzing the physical movements of atoms and molecules. The atoms and molecules are allowed...

Watson, James K.G. (1968). "Simplification of the molecular vibration-rotation hamiltonian". Molecular Physics. 15 (5): 479–490. Bibcode:1968MolPh..15....