title: Stabilizing Superacid Anions: The New [H(S4O13)2]3-Anion in the Crystal Structure of Li3[H(S4O13)2].
abstract: The unique hydrogenium-bis-tetrasulfate anion [H(S4O13)2]3-in the crystal structure of Li3[H(S4O13)2] (monoclinic, P21/n (No. 14), Z=2, a=552.46(4) pm, b=939.70(6) pm, c=1876.6(1) pm, β=97.492(3)°, V=965.9(1)⋅106pm3) is the longest protonated polysulfate chain ever observed. Very strong symmetrical hydrogen bonds are a bold feature of the crystal structure. The protonation of a very weak base such as [S4O13]2-and accordingly the stabilization of the first base of the superacid H2S4O13is a significant success towards the still elusive polysulfuric acids.
authors: Institute for Inorganic and Analytical Chemistry, Justus-Liebig-University of Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany.
authors: Lisa Verena
authors: LV
authors: Schindler
authors: Institute for Inorganic and Analytical Chemistry, Justus-Liebig-University of Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany.
authors: Anna
authors: A
authors: Becker
authors: Institute for Inorganic and Analytical Chemistry, Justus-Liebig-University of Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany.
authors: Mathias Siegfried
authors: MS
authors: Wickleder
keywords: crystal structure; hydrogen bonds; hydrogen polysulfate; polysulfate; superacidic systems