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Spectroscopic Characterization of Reaction Intermediates in a Model for Copper Nitrite Reductase
Author(s) -
Kujime Masato,
Fujii Hiroshi
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200503555
Subject(s) - nitrous acid , nitrite , protonation , chemistry , nitrite reductase , trifluoroacetic acid , copper , electron transfer , intramolecular force , ligand (biochemistry) , inorganic chemistry , reactive intermediate , reaction intermediate , reaction mechanism , ion , photochemistry , organic chemistry , catalysis , nitrate , biochemistry , receptor
A nitrous acid complex was identified by spectroscopic and kinetic analyses under stopped‐flow conditions as an intermediate in the reaction of copper( I ) nitrite complex 1 with trifluoroacetic acid (see scheme). A reaction mechanism was proposed in which two protons are transferred in a stepwise manner to the nitrite anion. Intramolecular electron transfer from copper to the nitrite ligand occurs in the second protonation step.