unoccupied orbital

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• Atomic orbital — The shapes of the first five atomic orbitals: 1s, 2s, 2px, 2py, and 2pz. The colors show the wave function phase. These are graphs of ψ(x,y,z) functions which depend on the coordinates of one electron. To see the elongated shape of ψ(x,y,z)2… …   Wikipedia

• Lowest Unoccupied Molecular Orbital — (LUMO), das niedrigste unbesetzte Orbital eines Moleküls. In einem Molekül stehen verschiedene Molekülorbitale zur Verfügung, die von den vorhandenen Elektronen besetzt werden. Diese Orbitale sind verschieden energiereich. Sie werden daher nach… …   Deutsch Wikipedia

• Molecular orbital — See also: Molecular orbital theory In chemistry, a molecular orbital (or MO) is a mathematical function describing the wave like behavior of an electron in a molecule. This function can be used to calculate chemical and physical properties such… …   Wikipedia

• Molecular orbital diagram — A molecular orbital diagram, or MO diagram for short, is a qualitative descriptive tool explaining chemical bonding in molecules in terms of molecular orbital theory in general and the Linear combination of atomic orbitals molecular orbital… …   Wikipedia

• Highest Occupied Molecular Orbital — (HOMO), das höchste besetzte Orbital eines Moleküls (siehe auch Molekülorbitaltheorie). In einem Molekül stehen verschiedene Molekülorbitale zur Verfügung, die von den vorhandenen Elektronen besetzt werden. Diese Orbitale sind verschieden… …   Deutsch Wikipedia

• analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …   Universalium

• coordination compound — Chem. complex (def. 10). Also called coordination complex. * * * ▪ chemistry Introduction  any of a class of substances with chemical structures in which a central metal atom is surrounded by nonmetal atoms or groups of atoms, called ligands… …   Universalium

• X-ray absorption fine structure — (XAFS) is a specific structure observed in X ray absorption spectroscopy (XAS). By analyzing the XAFS, information can be acquired on the local structure and on the unoccupied electronic states.The X ray absorption spectra show a steep rise at… …   Wikipedia

• photochemical reaction — Chemical reaction initiated by absorption of energy in the form of visible (light), ultraviolet, or infrared radiation. Primary photochemical processes occur as an immediate result, and secondary processes may follow. The most important example… …   Universalium

• Fukui Kenichi — ▪ Japanese chemist born Oct. 4, 1918, Nara, Japan died Jan. 9, 1998, Kyoto       Japanese chemist, corecipient with Roald Hoffmann of the Nobel Prize for Chemistry in 1981 for their independent investigations of the mechanisms of chemical… …   Universalium

• Mir — This article is about the Soviet/Russian space station. For other uses, see Mir (disambiguation). Mir …   Wikipedia