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reactivity index definition
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Any numerical index derived from quantum mechanical model calculations that permits the prediction of relative reactivities of different molecular sites. Many indices are in use, based on a variety of theories and relating to various types of reaction. The more successful applications have been to the substitution reactions of conjugated systems where relative reactivities are determined largely by changes of pi-electron ene

See also:
regulator definition
reaction definition
reach definition
reliability definition
reliability definition
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