orbital symmetry

orbital symmetry

[′ȯr·bəd·əl ′sim·ə·trē]
(physical chemistry)
The property of certain molecular orbitals of being carried into themselves or into the negative of themselves by certain geometrical operations, such as a rotation of 180° about an axis in the plane of the molecule, or reflection through this plane.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
Carbonyl chemistry, carboxylic acid derivatives, and carbohydrates are discussed before concluding with special topics in biochemistry, orbital symmetry, and intramolecular reactions.
Organic Chemistry, 5th Edition (online access included)
If the [S.sub.1] state of benzene is involved, only the meta-addition mode is allowed to occur in a concerted fashion (i.e., synchronous formation of two single bonds) according to molecular orbital symmetry rules [3, 4].
Bryce-Smith, "Orbital symmetry relationships for thermal and photochemical concerted cyclo additions to the benzene ring," Journal of the Chemical Society D, no.
Effect of initial orientation on the laser-induced cycloaddition reaction of benzene and ethylene
If the state of benzene is involved, only meta addition is allowed to occur in a concerted fashion according to molecular orbital symmetry rules [11, 12].
Mechanisms of laser-induced reactions of stacked benzene molecules: a semiclassical dynamics simulation and CASSCF calculation

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