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The Ionization (Heterolysis) of Covalent Compounds as a Coordination‐Chemical Phenomenon
Author(s) -
Gutmann Viktor
Publication year - 1970
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197008431
Subject(s) - heterolysis , covalent bond , ionization , chemistry , nucleophile , iodide , electron acceptor , electrophile , acceptor , ion , bromide , coordination complex , inorganic chemistry , chemical ionization , photochemistry , fluoride , ionization energy , chloride , organic chemistry , catalysis , metal , physics , condensed matter physics
The ionization of a covalent compound into a cation and an anion is a coordination‐chemical phenomenon. The ions are formed with coordination either by nucleophilic attack of an electron pair donor or by electrophilic attack of an electron pair acceptor. The dielectrically controlled component of the ionization affects only the degree to which it occurs. It is shown that the ionization generally increases with increasing donor strength of the donor or with increasing acceptor strength of the acceptor. For a given M, the ease of ionization of the MX bond increases in the order X = fluoride < chloride < bromide < iodide. These general aspects are discussed with the aid of examples.