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Zur Kinetik des durch Cu 2+ ‐Äthylendiamin katalysierten H 2 O 2 ‐Zerfalls: Metallionen und H 2 O 2 , 14. Mitteilung
Author(s) -
Kaden Thomas,
Sigel Helmut
Publication year - 1968
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.660510434
Subject(s) - chemistry , diethylenetriamine , ethylenediamine , decomposition , ligand (biochemistry) , kinetic energy , chemical reaction kinetics , medicinal chemistry , kinetics , crystallography , stereochemistry , chemical kinetics , inorganic chemistry , organic chemistry , receptor , biochemistry , physics , quantum mechanics
Abstract Kinetic studies of the Cu 2+ ‐ethylenediamine catalysed decomposition of H 2 O 2 show the initial rate v 0 of H 2 O 2 decomposition to be proportional to [H+] −1 , [H 2 O 2 ], and [Cu 2+ ‐en] 2 . Maximal velocity is found at a ratio of [Cu 2+ ] tot :[en] tot = 1:1,5. It is suggested that the active complex has a binuclear structure. This structure and probable mechanisms of the reaction are discussed. The kinetic measurements of the Cu 2+ ‐diethylenetriamine‐H 2 O 2 system are difficult to interprete because of degradation of the ligand by H 2 O 2 .