Syntheses, structures, and IR spectroscopic characterization of new uranyl sulfate/selenate 1D-chain, 2D-sheet and 3D-framework

✍ Scribed by Ling, Jie (author);Sigmon, Ginger E. (author);Ward, Matthew (author);Roback, Nancy (author);Burns, Peter C. (author)

• Book ID: 121212038
• Publisher: Oldenbourg Wissenschaftsverlag
• Year: 2010
• Tongue: English
• Weight: 608 KB
• Volume: 225
• Category: Article
• ISSN: 2194-4946
• DOI: 10.1524/zkri.2010.1228

✦ Synopsis

Abstract

Three uranyl sulfates, (C~6~H~20~N~4~)(UO~2~)~2~(SO~4~)~4~ · (H~2~O)~2~~6~ (TETAUS), (C~15~H~14~N~3~)(UO~2~)(SO~4~)~2~ · (H~2~O)~2~ (TPUS), and K~2~[(UO~2~)(SO~4~)~2~(H~2~O)] · H~2~O (KUS), and two uranyl selenates, K(H~3~O)(UO~2~)~2~(SeO~4~)~3~ · (H~2~O)~6~ (KUSe) and (H~3~O)~2~[(UO~2~)~2~(SeO~4~)~3~ · (H~2~O)] (USe), were synthesized by slow evaporation of aqueous solutions at room temperature. TETAUS crystallizes in space group P-1, a = 6.7186(5) Å, b = 9.2625(7) Å, c = 13.1078(9) Å, α = 72.337(2)°, β = 89.198(2)°, γ = 70.037(1)°, V = 726.89(9) Å^3^, Z = 1. TPUS is triclinic, P-1, a = 6.9732(7) Å, b = 13.569(1) Å, c = 13.641(1) Å, α = 111.809(2)°, β = 102.386(2)°, γ = 93.833(2)°, V = 1150.0(2) Å^3^, Z = 2. KUS is orthorhombic, Cmca, a = 12.171(2) Å, b = 16.689(3) Å, c = 10.997(2) Å, V = 2233.8(6) Å^3^, Z = 8. These uranyl sulfates are built from infinite one-dimensional uranyl sulfate chains with different topologies. KUSe is monoclinic, __P__2~1~/n, a = 14.715(1) Å, b = 10.1557(7) Å, c = 15.833(1) Å, β = 114.415(1)°, V = 2154.5(3) Å^3^, Z = 4. Its structure is based on a two-dimensional uranyl selenate sheet. USe crystallizes in space group __P__2~1~/c, a = 10.6124(2) Å, b = 14.7717(3) Å, c = 13.7139(3) Å, β = 96.989(1)°, V = 2133.86(8) Å^3^, Z = 4, with a complex three-dimensional uranyl selenate framework containing channels extending in three directions.