Synthesis, Characterization, and Light Sensitivity in Titanium Piano Stool Alkyl and Sulfur Complexes, [(C<sub>5</sub>Me<sub>5</sub>)TiMe<sub>2</sub>R]<sup><i>n</i>−</sup> (R = Me, SCPh<sub>3</sub>, S; <i>n</i> = 0, 1)
The piano stool complex (C<sub>5</sub>Me<sub>5</sub>)-TiMe<sub>3</sub>, <b>1</b>, reacts with HSCPh<sub>3</sub> to produce (C<sub>5</sub>Me<sub>5</sub>)-TiMe<sub>2</sub>(SCPh<sub>3</sub>), <b>2</b>. Reduction of <b>2</b> with an alkali metal (K or Na) produces the sulfide complexes [K-(crypt)]-[(C<sub>5</sub>Me<sub>5</sub>)-TiMe<sub>2</sub>(S)], <b>3-K-(crypt)</b>, and (C<sub>5</sub>Me<sub>5</sub>)-TiMe<sub>2</sub>(μ-S)-M-(18-crown-6), <b>3-M-(18c6)</b> (M = K, Na). <b>3-K-(crypt)</b> is the first example of a piano stool titanium complex featuring a terminal sulfide. Compounds <b>1-3</b> are photosensitive, with photolysis experiments, monitored through <sup>1</sup>H NMR and UV-visible spectroscopies, demonstrating <b>1</b> as the most photostable and <b>3</b> as the least photostable.
Authors
- Eric W. Reinheimer (ORCID: https://orcid.org/0000-0002-9491-1571)
- Alejandro J. Metta‐Magaña (ORCID: https://orcid.org/0000-0001-9993-8485)
- Cory J. Windorff (ORCID: https://orcid.org/0000-0002-5208-9129)
- Bayler G. Barnes
Institutions
- New Mexico State University (US)
- The University of Texas at El Paso (US)
- Rigaku (United States) (US)
- Rigaku (United Kingdom) (GB)
Publication Details
- Journal
- Organometallics
- Published
- 2025-06-02
- DOI
- https://doi.org/10.1021/acs.organomet.5c00080
- Primary Topic
- Organometallic Complex Synthesis and Catalysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- American Chemical Society Petroleum Research Fund
- National Institute of General Medical Sciences
- Division of Chemistry