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Title: Structural motifs in heteroleptic copper and cadmium selenites

Abstract

Cu(II) cations in the presence of diamine ligands such as tetramethylethylendiamine (TMEDA) react with Na2SeO3 to produce the heteroleptic selenite copper compound of formula [Cu-3(TMEDA)(3)(SeO3)(2)(H2O)(4)] (NO3)(2). In the cationic moiety two copper atoms are linked by two selenite anions through the O-Se-O bridge. One of the two bridging selenite anion coordinates to a third copper atom through the third oxygen atom. Reaction of Cd(CH3COO)(2)center dot 2H(2)O with Na2SeO3 in the presence of ligand with softer character such as thiourea [(NH2)(2)CS; tu] or selenourea [(NH2)(2)CSe; tu] in aqueous solution afforded the complex [{Cd(tu)(2)SeO3}(2)], whose structure has been elucidated by X-ray diffraction analysis. It is the first reported example of a molecular cadmium selenite complex. Two cadmium cations stabilized by the coordination of four ancillary thiourea soft ligands, are linked together by two bridging selenite ions through O and O-Se-O bridges. A comparison between the coordination mode of the selenite ion in those cadmium and copper complexes and in inorganic extended CdSeO3 and hydrated CuSeO3 phases is also reported. (C) 2017 Elsevier B.V. All rights reserved.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1461553
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Inorganica Chimica Acta
Additional Journal Information:
Journal Volume: 470; Journal Issue: C; Journal ID: ISSN 0020-1693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
cadmium; copper; crystal structure; selenite compound; selenium; selenourea and thiourea cadmium compounds

Citation Formats

Canossa, Stefano, Bellè, Enrico, Delferro, Massimiliano, Predieri, Giovanni, and Graiff, Claudia. Structural motifs in heteroleptic copper and cadmium selenites. United States: N. p., 2018. Web. doi:10.1016/j.ica.2017.05.043.
Canossa, Stefano, Bellè, Enrico, Delferro, Massimiliano, Predieri, Giovanni, & Graiff, Claudia. Structural motifs in heteroleptic copper and cadmium selenites. United States. doi:10.1016/j.ica.2017.05.043.
Canossa, Stefano, Bellè, Enrico, Delferro, Massimiliano, Predieri, Giovanni, and Graiff, Claudia. Mon . "Structural motifs in heteroleptic copper and cadmium selenites". United States. doi:10.1016/j.ica.2017.05.043.
@article{osti_1461553,
title = {Structural motifs in heteroleptic copper and cadmium selenites},
author = {Canossa, Stefano and Bellè, Enrico and Delferro, Massimiliano and Predieri, Giovanni and Graiff, Claudia},
abstractNote = {Cu(II) cations in the presence of diamine ligands such as tetramethylethylendiamine (TMEDA) react with Na2SeO3 to produce the heteroleptic selenite copper compound of formula [Cu-3(TMEDA)(3)(SeO3)(2)(H2O)(4)] (NO3)(2). In the cationic moiety two copper atoms are linked by two selenite anions through the O-Se-O bridge. One of the two bridging selenite anion coordinates to a third copper atom through the third oxygen atom. Reaction of Cd(CH3COO)(2)center dot 2H(2)O with Na2SeO3 in the presence of ligand with softer character such as thiourea [(NH2)(2)CS; tu] or selenourea [(NH2)(2)CSe; tu] in aqueous solution afforded the complex [{Cd(tu)(2)SeO3}(2)], whose structure has been elucidated by X-ray diffraction analysis. It is the first reported example of a molecular cadmium selenite complex. Two cadmium cations stabilized by the coordination of four ancillary thiourea soft ligands, are linked together by two bridging selenite ions through O and O-Se-O bridges. A comparison between the coordination mode of the selenite ion in those cadmium and copper complexes and in inorganic extended CdSeO3 and hydrated CuSeO3 phases is also reported. (C) 2017 Elsevier B.V. All rights reserved.},
doi = {10.1016/j.ica.2017.05.043},
journal = {Inorganica Chimica Acta},
issn = {0020-1693},
number = C,
volume = 470,
place = {United States},
year = {2018},
month = {1}
}