Synthesis and characterization of a bimetallic americium(iii) pyrithionate coordination complex

Zachary K. Huffman; Joseph M. Sperling; Cory J. Windorff; Brian N. Long; Lucas Cordova; Harry Ramanantoanina; Cristian Celis-Barros; Thomas E. Albrecht-Schönzart

doi:10.1039/d2cc03352f

Synthesis and characterization of a bimetallic americium(iii) pyrithionate coordination complex

Zachary K. Huffman
, Joseph M. Sperling
, Cory J. Windorff
, Brian N. Long
, Lucas Cordova
, Harry Ramanantoanina
, Cristian Celis-Barros
, Thomas E. Albrecht-Schönzart

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	11791-11794
Number of pages	4
Journal	Chemical Communications
Volume	58
Issue number	84
DOIs	https://doi.org/10.1039/d2cc03352f
State	Published - Sep 15 2022
Externally published	Yes

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title = "Synthesis and characterization of a bimetallic americium(iii) pyrithionate coordination complex",

abstract = "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.",

author = "Huffman, \{Zachary K.\} and Sperling, \{Joseph M.\} and Windorff, \{Cory J.\} and Long, \{Brian N.\} and Lucas Cordova and Harry Ramanantoanina and Cristian Celis-Barros and Albrecht-Sch{\"o}nzart, \{Thomas E.\}",

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year = "2022",

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day = "15",

doi = "10.1039/d2cc03352f",

language = "English",

volume = "58",

pages = "11791--11794",

journal = "Chemical Communications",

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publisher = "Royal Society of Chemistry",

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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.

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 - https://www.scopus.com/pages/publications/85140300230

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 -

Synthesis and characterization of a bimetallic americium(iii) pyrithionate coordination complex

Abstract

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