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Updated: Sep 17, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
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Synthesis, Characterization, and Light Sensitivity in Titanium Piano Stool Alkyl and Sulfur Complexes,
Bayler G Barnes1, Alejandro J Metta-Magaña2, Eric W Reinheimer3
1Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, United States.
Abstract:
The piano stool complex (C5Me5)-TiMe3, 1, reacts with HSCPh3 to produce (C5Me5)-TiMe2(SCPh3), 2. Reduction of 2 with an alkali metal (K or Na) produces the sulfide complexes [K-(crypt)]-[(C5Me5)-TiMe2(S)], 3-K-(crypt), and (C5Me5)-TiMe2(μ-S)-M-(18-crown-6), 3-M-(18c6) (M = K, Na). 3-K-(crypt) is the first example of a piano stool titanium complex featuring a terminal sulfide. Compounds 1-3 are photosensitive, with photolysis experiments, monitored through 1H NMR and UV-visible spectroscopies, demonstrating 1 as the most photostable and 3 as the least photostable.
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