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Kinetics of complex formation of 2‐methoxyphenol with ferric ion and hexacyanoferric ion
Author(s) -
Kislenko V. N.,
Olijnyk L. P.
Publication year - 2000
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/(sici)1097-4601(2000)32:3<184::aid-kin9>3.0.co;2-e
Subject(s) - chemistry , ferric , ferric ion , reaction rate constant , ion , cyanide , ligand (biochemistry) , molecule , decomposition , inorganic chemistry , kinetics , reaction rate , reaction mechanism , photochemistry , elementary reaction , organic chemistry , catalysis , biochemistry , physics , receptor , quantum mechanics
Complexes containing one molecule of organic ligand have been formed in the reaction of 2 methoxyphenol with ferric ion or hexacyanoferric ion. Kinetic investigations showed that the reaction order with respect to ferric ion or hexacyanoferric ion is close to one. The reaction order with respect to 2‐methoxyphenol is 0.8 in the reaction with ferric ion and close to 0 in the reaction with hexacyanoferric ion. The reaction mechanism, based on kinetic investigations, involves the decomposition of the initial complex, formed with the pentacoordinated complex and water or cyanide ion. In a second stage of the reaction, the pentacoordinated complex adds 2‐methoxyphenol; and one molecule of initial ligand, water, or cyanide ion, comes off. Some ratios of rate constants of elementary reactions have been calculated. © 2000 John Wiley & Sons, Inc. Int J Chem Kinet 32: 184–191, 2000