Pd[B(S <sub>2</sub> O <sub>7</sub> ) <sub>2</sub> ] <sub>2</sub> and Pd[B(SO <sub>4</sub> ) (S <sub>2</sub> O <sub>7</sub> )] <sub>2</sub> : Two Borosulfates with Pd <sup>2+</sup> in Octahedral and One with Pd <sup>2+</sup> in Square Planar Oxygen Co
The reaction of elemental palladium with B<sub>2</sub>O<sub>3</sub> and SO<sub>3</sub> at elevated temperature results in the formation of blue crystals of Pd[B(S<sub>2</sub>O<sub>7</sub>)<sub>2</sub>]<sub>2</sub>. Dependent on the reaction conditions, the compound crystallizes in two different polymorphs obtained as bulk samples. In both structures the Pd<sup>2+</sup> cations are coordinated by six oxygen atoms in form of an almost perfect octahedron. All oxygen atoms belong to the borosulfate anions [B(S<sub>2</sub>O<sub>7</sub>)<sub>2</sub>]<sup>-</sup> and link via Pd<sup>2+</sup> cations to an extended network structure. Within the uncommon octahedral oxygen coordination, the Pd<sup>2+</sup> cations reveal a d<sup>8</sup> high-spin configuration, which leads to paramagnetism. Occasionally, red crystals are formed during the reaction next to the major fraction of blue crystals of Pd[B(S<sub>2</sub>O<sub>7</sub>)<sub>2</sub>]<sub>2</sub>. Single crystal X-ray structure analysis on the red crystals reveals the sum formula Pd[B(SO<sub>4</sub>)(S<sub>2</sub>O<sub>7</sub>)]<sub>2</sub> with Pd<sup>2+</sup> in square-planar coordination.
Authors
- Rainer Pöttgen (ORCID: https://orcid.org/0000-0003-0962-279X)
- Stefan Sutorius (ORCID: https://orcid.org/0000-0001-9978-157X)
- Lars Schumacher (ORCID: https://orcid.org/0009-0009-9444-8773)
- Jörn Bruns (ORCID: https://orcid.org/0000-0002-8589-6154)
- Markus Suta (ORCID: https://orcid.org/0000-0001-8024-6665)
- David Patrun (ORCID: https://orcid.org/0009-0004-2281-7676)
- Arthur Edelmann
Institutions
- University of Cologne (DE)
- University of Münster (DE)
- Heinrich Heine University Düsseldorf (DE)
Publication Details
- Journal
- Chemistry - A European Journal
- Published
- 2025-06-02
- DOI
- https://doi.org/10.1002/chem.202501515
- Primary Topic
- Crystal Structures and Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Deutsche Forschungsgemeinschaft