Open AccessDetermination of dissociation energy for ligand exchange reaction from EXAFS
Author(s) -
Miyanaga T.,
Sakane H.,
Watanabe I.
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049500015934
Subject(s) - extended x ray absorption fine structure , dissociation (chemistry) , chemistry , surface extended x ray absorption fine structure , anharmonicity , aqueous solution , transition metal , metal , ligand (biochemistry) , analytical chemistry (journal) , absorption spectroscopy , catalysis , physics , biochemistry , organic chemistry , chromatography , quantum mechanics , receptor
EXAFS (extended X‐ray absorption fine structure) experiments were performed at several different temperatures for a series of 3d transition metal ions (Cr 3+ , Fe 3+ , Fe 2+ , Ni 2+ , Co 2+ , Zn 2+ ) in aqueous solutions. Anharmonic EXAFS analyses, which include up to third order cumulant, were carried out to study on the metal‐oxygen bonding potential. According to the model in which the dissociation process is dominant for the ligand‐water exchange reaction, the dissociation energy has been first evaluated from EXAFS in solution phase.