Ag[B(S2O7)2]: The First Transition Metal Borosulfate Featuring Disulfate Groups. Issue 11 (26th January 2021)

• Record Type: Journal Article
• Authors: Netzsch, Philip; Höppe, Henning A.
• Is Part Of: European journal of inorganic chemistry. Issue 11(2021)
• Page Start: 1065
• Page End: 1070
• Publication Date: 2021-01-26
• Subjects: Borosulfates -- Silicate-analogues -- Precious metals -- Silver -- Structure elucidation; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.202001095
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: Hitherto, the structural diversity of transition metal borosulfates has been limited to B−O−S and B−O−B bridges. Ag[B(S2 O7 )2 ] represents the very first transition metal borosulfate featuring S−O−S bridges. The compound was synthesized solvothermally in oleum (65 % SO3 ) and crystallizes in a new structure type in P 21 / c (no. 14) with Z =4, a =950.7(4) pm, b =960.1(4) pm, c =1173.0(4) pm and β =98.350(11)°. The crystal structure comprises complex anions [B(S2 O7 )2 ] − – consisting of a central boron atom and two chelating disulfate groups – and charge balancing Ag + ions. Vibrational spectroscopy confirms the presence of S−O−S bridges. A thermal decomposition from Ag[B(S2 O7 )2 ] towards Ag[B(SO4 )2 ] was monitored by means of thermogravimetric analysis (TGA) and temperature programmed X‐ray diffraction (TPXRD). Abstract : Ag[B(S2 O7 )2 ] represents the very first precious metal borosulfate containing disulfate groups, i. e . S−O−S bridges, and thus further enriches the crystal chemistry of transition metal borosulfates. By thermal release of SO3 originating from the disulfate groups, the complex anions [B(S2 O7 )2 ] − condense to one‐dimensional chains in Ag[B(SO4 )2 ] containing solely B−O−S bridges.