Mononuclear Ru/Os Compounds with Cyclic C5–C6 Ligands (Except Compounds containing monohapto Ligands)

Synthesis and Reactivity of Cyclopentadienyl Ruthenium(II) Complexes with Tris(alkylthio)benzenes: Transformation between Dinuclear and Sandwich-Type Complexes

“…The resultant pale yellow liquid was dried under vacuum for 5 h at room temperature (28 mg, 81%). 1 H NMR (400 MHz, CDCl 3 ): δ 1.03 (t, 9H, CH 3 , J = 14.7 Hz), 1.67 (sext, 6H, CH 2 , J = 7.59 Hz), 2.88 (t, 6H, CH 2 , J = 14.7 Hz), 7.02 (s, 3H, C 6 H 3 ). ESI-MS (m/z): [M + H] + calcd for C 15 H 25 S 3 , 301.1118; found, 301.1109.…”

“…Then, the reaction mixture was added to water and a white precipitate was collected by filtration, washed successively with water and cold methanol, and vacuum-dried (55 mg, 86%). 1 H NMR (400 MHz, CDCl 3 ): δ 2.47 (s, 9H, CH 3 ), 6.88 (s, 3H, C 6 H 3 ).…”

“…Pale yellow crystals were obtained upon recrystallization from acetone−diethyl ether at −40 °C (36 mg, 46%). 1 ). An aqueous solution (0.5 mL) of K[FSA] (53 mg, 0.245 mmol) was added to an acetone (2.5 mL) solution of [RuCpL 1 ][PF 6 ] (38 mg, 0.062 mmol) and stirred at room temperature for 6 h. The solution was extracted with dichloromethane (20 mL), and the organic layer was dried over MgSO 4 before being evaporated.…”

“…The solution was evaporated and dried in vacuo for 6 h to afford a yellow liquid (32 mg, 28%). 1 [FSA] (15 mg, 0.032 mmol) and L 1 (19 mg, 0.064 mmol). Acetone and diethyl ether were bubbled with nitrogen gas for 15 min before use.…”

Arene-Osmium(II) Complexes in Homogeneous Catalysis

“…Although the behavior of (η 6 -arene)-osmium(II) complexes mimics to some extent that of their ruthenium counterparts, the chemistry of the former has been comparatively much less studied [11,[36][37][38][39]. However, their catalytic potential is well documented and different works have shown that, in some instances, a comparable or even superior effectiveness can be achieved with this particular class of compounds when compared to their ruthenium analogues, or to related half-sandwich complexes of other metals more commonly employed in homogeneous catalysis, such as rhodium and iridium.…”