Quantum chemistry

lasting attraction between atoms that enables the formation of chemical compounds

mode of arrangement of electrons in different shells of an atom

alt=The solar wind moving through the magnetosphere alters the movements of charged particles in the Earth's thermosphere or exosphere, and the resulting ionization of these particles causes them to emit light of varying colour, thus forming auroras near the polar regions.|thumb|201x201px|The solar wind moving through the [[magnetosphere alters the movements of charged particles in the Earth's thermosphere or exosphere, and the resulting ionization of these particles causes them to emit light of varying color, thus forming auroras near the polar regions.]] Ionization or ionisation is the proce

minimum amount of energy required to remove an electron from an atom or molecule in the gaseous state

mathematical function describing the location and behavior of an electron within an atom

field of chemistry

thumb|The Solar Settlement, a sustainable housing community project in [[Freiburg, Germany|upright=1.2]] thumb|Charging station in France that provides energy for electric cars using solar energy|upright=1.2 thumb|Solar panels on the International Space Station|upright=1.2Photovoltaics (PV) is the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon studied in physics, photochemistry, and electrochemistry. The photovoltaic effect is commercially used for electricity generation and as photosensors.

mixing (superposition) of atomic orbitals in chemistry

different states of quantum systems

nano-scale semiconductor particle subject to quantum effects

quantum operator for the energy

wave-like behavior of an electron in a molecule

conceptual and mathematical opposite of an electron

theoretical model used in chemistry

method for describing the electronic structure of molecules using quantum mechanics

one of two foundational theories of quantum chemistry

one of four quantum numbers which are assigned to each electron in an atom to describe that electron's state

two electrons that occupy the same orbital but have opposite spins

electric current generation from light

set of three rules proposed by physicist Friedrich Hund

type of molecular orbital in chemistry

The notion that the motion of atomic nuclei and electrons can be separated

physical interactions and constructions between multiple proteins

method of approximation for the determination of the wave function and the energy of a quantum many-body system in a stationary state

Theories of quantum chemistry explained via relativistic mechanics

In chemistry, the study of sonochemistry is concerned with understanding the effect of ultrasound in forming acoustic cavitation in liquids, resulting in the initiation or enhancement of the chemical activity in the solution. Therefore, the chemical effects of ultrasound do not come from a direct interaction of the ultrasonic sound wave with the molecules in the solution.

probability density of electrons being somewhere

quantum mechanical effect in which the expectation value of the distance when the wave functions of two or more indistinguishable particles overlap changes due to exchange symmetry of identical particles

decrease in attraction between an electron and the nucleus

abstract coordinate depicting chemical reaction progress

expression that describes the wave function of a multi-fermionic system

spectral line associated with absorption or emission of light by atomic nuclei, atoms, or molecules

quantum chemistry rule regarding vibronic transitions

Method for the determination of the approximate ground state of a quantum mechanical system.

electron occupying an orbital by itself rather than in a pair

a mapping of possible energy states of a system

Interatomic interaction model

molecular ion

In chemistry, a superatom is any cluster of atoms that seem to exhibit some of the properties of elemental atoms. One example of a superatom is the cluster .

The reluctance of 'ns' pair of electrons to take part in bond formation

statistical weight of a quantum level

electrons in an atom's inner shells, which do not participate in chemical bonding

in solid-state physics, a quantum lattice model of fermions with nearest-neighbor interactinos that describes the conductor-insulator transition

semi-empirical rules for quantum chemistry

in quantum physics, an abbreviated description of the total spin and orbital angular momentum quantum numbers of the electrons in a multi-electron atom

law of photochemistry

rule dealing with the filling of electrons into orbitals belonging to same shell

theorem in quantum mechanics that in closed-shell Hartree–Fock theory, the first ionization energy of a molecular system equals the negative of the orbital energy of the highest occupied molecular orbital

chemical term

interaction between electronic and nuclear vibrational motion in a molecule

Chemical theory

organization devoted to applying quantum physics to chemistry

Autoionization is a process by which an atom or a molecule in an excited state spontaneously emits one of the outer-shell electrons, thus going from a state with charge  to a state with charge , for example from an electrically neutral state to a singly ionized state.

physical model treating some aspects in terms of quantum mechanics and others by classical physics

interaction between electrons, often complicating physical calculations

quantum mechanical model of a quantum nonrelativistic particle subject to a classical spherically symmetric potential well

Microcanonic transition state theory of unimolecular reactions

shift of energy in physics

mathematical calculation method