Molecular Orbital - Overview

Overview

Molecular orbitals (MOs) represent regions in a molecule where an electron is likely to be found. Molecular orbitals are obtained from the combination of atomic orbitals, which predict the location of an electron in an atom. A molecular orbital can specify the electron configuration of a molecule: the spatial distribution and energy of one (or one pair of) electron(s). Most commonly an MO is represented as a linear combination of atomic orbitals (the LCAO-MO method), especially in qualitative or very approximate usage. They are invaluable in providing a simple model of bonding in molecules, understood through molecular orbital theory. Most present-day methods in computational chemistry begin by calculating the MOs of the system. A molecular orbital describes the behavior of one electron in the electric field generated by the nuclei and some average distribution of the other electrons. In the case of two electrons occupying the same orbital, the Pauli principle demands that they have opposite spin. Necessarily this is an approximation, and highly accurate descriptions of the molecular electronic wave function do not have orbitals (see configuration interaction).

Read more about this topic:  Molecular Orbital

Other articles related to "overview":

Kewanee, Illinois - Schools - Overview
... There are also other schools in Kewanee like Visitation Catholic School home of the Giants, and a community college, Black Hawk College ... Black Hawk College-East Campus is recognized nationally for its equestrian program, as well as livestock judging teams ...
Golden Brown - Overview
... The single was a hit around the world, scaling the Top 10 as far away as Australia ... Its commercial success was probably the single factor that secured The Stranglers their continuing life in pop mainstream for the remainder of the 1980s ...
Unified Modeling Language - Topics - Diagrams Overview - Interaction Diagrams
... Interaction overview diagram provides an overview in which the nodes represent communication diagrams ... Communication diagram Interaction overview diagram Sequence diagram The Protocol State Machine is a sub-variant of the State Machine ...
United States Presidential Election, 1992 - Nominations - Democratic Party Nomination - Overview
... U.S ... Senator Tom Harkin (Iowa) ran as a populist liberal with labor union support ...