Open AccessEXAFS studies of americium(III)–benzimidazole complex in ethanol
Author(s) -
Yaita T.,
Tachimori S.,
Edelstein N. M.,
Bucher J. J.,
Rao L.,
Shuh D. K.,
Allen P. G.
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/s0909049500019415
Subject(s) - benzimidazole , extended x ray absorption fine structure , denticity , chemistry , ligand (biochemistry) , americium , molar ratio , molecule , metal , coordination number , nitrogen , carbide , crystallography , ion , crystal structure , inorganic chemistry , absorption spectroscopy , organic chemistry , actinide , catalysis , biochemistry , physics , receptor , quantum mechanics
The local structures of Am, Nd and Er‐Benzimidazole (Biz) in solution were determined by EXAFS. The BIZ molecule coordinated to Am and Nd through two nitrogen atoms in a bidentate fashion. Two nitrogen atoms of BIZ ligated to Am and Nd with the bond distances R Am‐N = 2.63 Å and R Nd‐N = 2.65 Å, respectively. The total coordination number of the Am BIZ complexes (at a molar ratio of metal ion to ligand of 1:20) was ~10 but that of Nd BIZ complex was ~9.