Odd-Numbered Ring Cluster Tc<sub>9</sub>(μ-O)<sub>9</sub>Cl<sub>6</sub>(OOCCCl<sub>3</sub>)<sub>15</sub>: Synthesis, Crystal Structure, and Optical and Thermal Properties
Herein, we report a method for the preparation of the first odd homometallic and heterovalent nine-centered Tc wheel, [Tc<sub>9</sub>(μ-O)<sub>9</sub>Cl<sub>6</sub>(OOCCl<sub>3</sub>)<sub>15</sub>]. The synthesized compound represents the pioneering instance of such clusters among d<sub>4</sub> elements and is the fourth instance observed across all metals. The ring was synthesized by a solvothermal method in a solution of technetium acid in trichloroacetic anhydride. By single-crystal X-ray diffraction (XRD), powder XRD, and FTIR, the crystal structure was established. By UV-vis spectroscopy, thermogravimetric analysis, and density functional theory calculations, the optical, thermal, and some chemical properties were studied. The molar extinction coefficients in 16 solvents were determined. The heating of the complex in trichloroacetic anhydride leads to the formation of carbonyl compounds.
Authors
- Mikhail A. Volkov (ORCID: https://orcid.org/0000-0002-6515-4874)
- E. V. Abkhalimov (ORCID: https://orcid.org/0000-0001-6733-9322)
- Mikhail S. Grigoriev (ORCID: https://orcid.org/0000-0002-6363-5535)
Institutions
- Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (RU)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2024-12-06
- DOI
- https://doi.org/10.1021/acs.inorgchem.4c04227
- Primary Topic
- Lanthanide and Transition Metal Complexes
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Ministry of Science and Higher Education of the Russian Federation