In theoretical chemistry, molecular electronic transitions take place when electrons in a molecule are excited from one energy level to a higher energy...

Ensemble interpretation Fluorescence Glowing pickle demonstration Molecular electronic transition, for molecules Phosphorescence Quantum jump Spontaneous emission...

A quantum jump is the abrupt transition of a quantum system (atom, molecule, atomic nucleus) from one quantum state to another, from one energy level to...

explain how a bond breaks. When applying energy to dihydrogen, a molecular electronic transition takes place when one electron in the bonding MO is promoted...

means such as UV/VIS spectroscopy it can undergo a molecular electronic transition: if such a transition brings the molecule into a repulsive state, it will...

on the electronic ground state and excited states of individual atoms and molecules as well as the study of reaction pathways and transition states that...

approximation that an electronic transition is most likely to occur without changes in the positions of the nuclei in the molecular entity and its environment...

Actual molecular spectra also show transitions which simultaneously couple electronic, vibrational, and rotational states. For example, transitions involving...

In chemistry, molecular orbital theory (MO theory or MOT) is a method for describing the electronic structure of molecules using quantum mechanics. It...

The spin transition is an example of transition between two electronic states in molecular chemistry. The ability of an electron to transit from a stable...

corresponds to a transition from the lower-lying electronic energy state to an excited electronic state (molecular electronic transition): associated with...

Molecular electronics is the study and application of molecular building blocks for the fabrication of electronic components. It is an interdisciplinary...

Indigo dye. The type of conjugation affects reactivity and molecular electronic transitions. IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold...

involved. Roughly speaking, a molecular energy state (i.e., an eigenstate of the molecular Hamiltonian) is the sum of the electronic, vibrational, rotational...

gate is based on the photochemical intersystem crossing and molecular electronic transition between photochemically active molecules, leading to logic...

due in part to the formation of molecular wires. The gels exhibited a transition between ionic conductivity and electronic conductivity on irradiation. One...

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

(almost) simultaneously absorbed by a molecule, promoting a molecular electronic transition from a lower energy state to a higher energy state. The sum...

Transition metals in the periodic table In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic...

conjunction with electronic excitation in the ultraviolet-visible region. The combined excitation is known as a vibronic transition, giving vibrational...

electronic state in order for the excitation to occur. In quantum theory, an electronic state of a diatomic molecule is represented by the molecular term...

energies of molecules are smaller than electronic transition energies by a factor of m/M ≈ 10−3–10−5, where m is electronic mass and M is typical nuclear mass...

accurate descriptions of the molecular electronic wave function do not have orbitals (see configuration interaction). Molecular orbitals are, in general,...

atomic and molecular transitions are considered. In quantum mechanics the basis for a spectroscopic selection rule is the value of the transition moment integral...

The glass–liquid transition, or glass transition, is the gradual and reversible transition in amorphous materials (or in amorphous regions within semicrystalline...

the composition, physical structure and electronic structure of matter to be investigated at the atomic, molecular and macro scale, and over astronomical...

repulsive energy e2/(4πε0R) has to be added to the electronic energy, resulting in the total molecular energy Etot(R). The energy E is the eigenvalue of...

at room temperature. Electronic spin states are more complex for transition metals. To understand the reactivity of transition metals, it is essential...

describes molecular electronic structure with localized bonds and lone pairs. Molecular orbital theory, which describes molecular electronic structure...

Catalyst for Smoking? An Initial Model on the Initiation of Electronic Cigarette Use and the Transition to Tobacco Smoking Among Adolescents". Nicotine & Tobacco...