2021/11/05 by Vitaly V. Chaban, Chaban, Vitaly V.
Chemistry · Materials Science · Medicine · #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Inorganic and Organometallic Chemistry #Magnetism in coordination complexes #Metal complexes synthesis and properties #Organometallic Complex Synthesis and Catalysis #Soft Condensed Matter (cond-mat.soft)
paper · pdf · doi:10.48550/arxiv.2111.03292
openalex publication_date 2021/11/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Diethyl sulfoxide (DESO) is far less known than its shorter-alkyl-chain\nhomolog, dimethyl sulfoxide. Although the field of senior dialkyl sulfoxides\ndoes not currently exhibit an explosive growth, new fundamental and applied\nresearch works routinely appear from a few research groups in the world.\nRecently, the tetraethylammonium diethylsulfoxidopentachloroplatinate complex\ncompound was synthesized containing the DESO molecule as a neutral ligand. In\nthe present paper, we use a systematic computational method to rationalize the\nmentioned synthetic achievement in coordination chemistry. We show that only up\nto two DESO molecules may exist in the platinum (IV) complex ion, whereas all\nhigher contents of DESO are thermodynamically unstable and the sterical factor\nplays an important role in their instabilities. Structural analysis of the\ntetraethylammonium diethylsulfoxidopentachloroplatinate ion pair reveals its\nrather strong cation-anion coordination and for the first time explains an\nexperimentally derived high melting point. The reported results are expected to\ninspire experimental efforts to extend the universe of senior sulfoxides as\nneutral organic ligands in d-metal complexes.\n