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Uranium(VI) bis(imido) chalcogenate complexes: synthesis and density functional theory analysis
- Source :
- Inorganic chemistry. 48(6)
- Publication Year :
- 2009
-
Abstract
- Bis(imido) uranium(VI) trans- and cis-dichalcogenate complexes with the general formula U(N(t)Bu)(2)(EAr)(2)(OPPh(3))(2) (EAr = O-2-(t)BuC(6)H(4), SPh, SePh, TePh) and U(N(t)Bu)(2)(EAr)(2)(R(2)bpy) (EAr = SPh, SePh, TePh) (R(2)bpy = 4,4'-disubstituted-2,2'-bipyridyl, R = Me, (t)Bu) have been prepared. This family of complexes includes the first reported monodentate selenolate and tellurolate complexes of uranium(VI). Density functional theory calculations show that covalent interactions in the U-E bond increase in the trans-dichalcogenate series U(N(t)Bu)(2)(EAr)(2)(OPPh(3))(2) as the size of the chalcogenate donor increases and that both 5f and 6d orbital participation is important in the M-E bonds of U-S, U-Se, and U-Te complexes.
Details
- ISSN :
- 1520510X
- Volume :
- 48
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Inorganic chemistry
- Accession number :
- edsair.doi.dedup.....8b3d620910ac12f956aa166b43204714