TY - JOUR
T1 - Synthesis and characterization of a bimetallic americium(iii) pyrithionate coordination complex
AU - Huffman, Zachary K.
AU - Sperling, Joseph M.
AU - Windorff, Cory J.
AU - Long, Brian N.
AU - Cordova, Lucas
AU - Ramanantoanina, Harry
AU - Celis-Barros, Cristian
AU - Albrecht-Schönzart, Thomas E.
N1 - Publisher Copyright:
© 2022 The Royal Society of Chemistry.
PY - 2022/9/15
Y1 - 2022/9/15
N2 - The aqueous reaction of sodium pyrithione, (Na)mpo, with 243AmCl3·nH2O yields a dimerized complex, [243Am(mpo)2(μ-O-mpo)(H2O)]2·3H2O. This compound is compared with isostructural lanthanide pyrithionates, where dimerization across the 4f-block is observed to be dependent upon the size of the cation. Unlike in most reported Am(iii) UV-visible absorption spectra, [243Am(mpo)2(μ-O-mpo)(H2O)]2·3H2O shows significant splitting in the fingerprint excitations. This is attributed to a unique ligand-field environment, where the Am-mpo bonds possess different bonding compared to the Nd(iii) analog because of increasing covalent interactions.
AB - The aqueous reaction of sodium pyrithione, (Na)mpo, with 243AmCl3·nH2O yields a dimerized complex, [243Am(mpo)2(μ-O-mpo)(H2O)]2·3H2O. This compound is compared with isostructural lanthanide pyrithionates, where dimerization across the 4f-block is observed to be dependent upon the size of the cation. Unlike in most reported Am(iii) UV-visible absorption spectra, [243Am(mpo)2(μ-O-mpo)(H2O)]2·3H2O shows significant splitting in the fingerprint excitations. This is attributed to a unique ligand-field environment, where the Am-mpo bonds possess different bonding compared to the Nd(iii) analog because of increasing covalent interactions.
UR - http://www.scopus.com/inward/record.url?scp=85140300230&partnerID=8YFLogxK
U2 - 10.1039/d2cc03352f
DO - 10.1039/d2cc03352f
M3 - Article
C2 - 36193661
AN - SCOPUS:85140300230
SN - 1359-7345
VL - 58
SP - 11791
EP - 11794
JO - Chemical Communications
JF - Chemical Communications
IS - 84
ER -