Tetra-μ-acetato-κ8 O: O'-bis-[(3-chloro-pyridine-κ N)ruthenium(II,III)](Ru- Ru) hexa-fluorido-phosphate 1,2-di-chloro-ethane monosolvate

Anthony J Aquino; Daniel Gerrior; T Stanley Cameron; Katherine N Robertson; Manuel A S Aquino

doi:10.1107/S2414314622002498

Tetra-μ-acetato-κ⁸ O: O'-bis-[(3-chloro-pyridine-κ N)ruthenium(II,III)](Ru- Ru) hexa-fluorido-phosphate 1,2-di-chloro-ethane monosolvate

IUCrdata. 2022 Mar 10;7(Pt 3):x220249. doi: 10.1107/S2414314622002498. eCollection 2022 Mar.

Authors

Anthony J Aquino¹, Daniel Gerrior¹, T Stanley Cameron², Katherine N Robertson³, Manuel A S Aquino¹

Affiliations

¹ Department of Chemistry, St. Francis Xavier University, PO Box 5000, Antigonish, NS, Canada, B2G 2W5.
² Department of Chemistry, Dalhousie University, 6274 Coburg Rd, Halifax, NS, Canada, B3H 4R2.
³ Department of Chemistry, Saint Mary's University, Halifax, NS, Canada, B3H 3C3.

Abstract

The title compound, [Ru₂(μ-O₂CCH₃)₄(C₅H₄ClN)₂]PF₆·C₂H₄Cl₂, was obtained via a rapid substitution reaction of 3-chloro-pyridine for water in [Ru₂(μ-O₂CCH₃)₄(H₂O)₂]PF₆ in 2-propanol and subsequent crystallization from a di-chloro-ethane solution. The cationic diruthenium(II,III) tetra-acetate core lies on a crystallographic inversion center with Ru-Ru and Ru-N bond lengths of 2.2738 (3) and 2.2920 (17) Å, respectively. The Ru-Ru-N bond angle is close to linear at 176.48 (4)°, and a significant π-stacking inter-action of 3.5649 (16) Å is seen between overlapping pyridine rings of adjacent cations.

Keywords: coordination compound; crystal structure; diruthenium tetracarboxylate; mixed-valency.

Grants and funding

Funding for this research was provided by: Natural Sciences and Engineering Research Council of Canada (grant to Manuel A.S. Aquino).