329358-32-9Relevant academic research and scientific papers
Reactions of [Os3(CO)10(μ-H)2] and [Os3(CO)8{μ3-Ph2PCH2P(Ph)C6H4}(μ-H)] with pymS?SnPh3 (pymS = pyrimidine-2-thiolate): Synthesis and Structure of Triosmium Clusters Containing pymS Ligand
Joy, Md Tuhinur R.,Ghosh, Shishir,Kabir, Shariff E.
, p. 257 - 264 (2021)
Abstract: Reactivity of pymS?SnPh3 (pymS = pyrimidine-2-thiolate) towards two unsaturated triosmium clusters [Os3(CO)10(μ-H)2] and [Os3(CO)8{μ3-Ph2PCH2P(Ph)C6H4}(μ-H)] are investigated. Reaction of pymS?SnPh3 with [Os3(CO)10(μ-H)2] affords [Os3(CO)10(μ-pymS)(μ-H)] (1) and [Os3(CO)9(μ3-pymS)(μ-H)] (2), while with [Os3(CO)8{μ3-Ph2PCH2P(Ph)C6H4}(μ-H)] leads to the isolation of only [Os3(CO)8(μ-pymS)(μ-H)(μ-dppm)] (3). In both reactions, the products are formed via incorporation of the thiolate part (pymS) of pymS?SnPh3 into the parent clusters through Sn?S bond cleavage. Clusters 1–3 have been characterized by a combination of analytical and spectroscopic data together with single crystal X-ray diffraction analysis. Graphic Abstract: Reactions of pymS?SnPh3 with two unsaturated triosmium clusters have been investigated which resulted in the isolation and characterization of three triosmium clusters containing a pymS ligand.[Figure not available: see fulltext.]
Reactivity of [(μ-H)Os3(CO)8{Ph2PCH2P(Ph)C 6H4}] with organic heterothiols; X-ray structures of [H(μ-H)Os3(CO)8(η2-pyS){Ph 2PCH2P(Ph)C6H4}] and [Os3(CO)8(μ-η2-pyS){Ph 2
Kabir, Shariff E.,Malik, K.M. Abdul,Molla, Elias,Mottalib, M. Abdul
, p. 157 - 164 (2007/10/03)
The reaction of [(μ-H)Os3(CO)8 {Ph2PCH2P(Ph)C6H4}] (3) with pyridine-2-thiol (pySH, C5H4NSH) at room temperature gave two novel clusters [(μ-H)Os3(CO)8(μ-pyS)(μ-dppm)] (4) and [H(μ-H)Os3(CO)8(η2-pyS){Ph 2PCH2P(Ph)C6H4}] (5) in 55 and 15% yields, respectively. Compound 4 is formed by simple oxidative addition of pySH and demetallation of the phenyl ring of dppm ligand whereas the 50-electron cluster 5 results from oxidative addition of pySH and coordination of the thiolate moiety as a chelating ligand and cleavage of one of the metal-metal bonds. The analogous reaction of 3 with pySH at 80°C gave the new compound [Os3(CO)8(μ-η2-pyS){Ph 2PCH2P(Ph)C6H4}] (6) in 20% yield together with 4 and 5 in 40 and 7% yields, respectively. Compound 6 contains a chelating/bridging pyS ligand and an orthometallated dppm ligand. In contrast, the reaction of 3 with pyrimidine-2-thiol (pymSH, C4H3N2SH) at room temperature and at 80°C affords only the simple oxidative addition product [(μ-H)Os3(CO)8(μ-pymS)(μ-dppm)] (7). Compound 6 reacts with molecular hydrogen to give 5 and 4 in 20 and 10% yields, respectively. Compound 5 was converted to 6 (30%) with the formation of 3 (10%) by refluxing in heptane at 98°C. The new complexes 4, 5, 6 and 7 have been characterized by spectroscopic data together with X-ray structure determinations for 5 and 6.
