Chloro(pentamethyl-η⁵-cyclopentadienyl)bis(triphenylphosphine)ruthenium(II)

Chloro(η5-dihydropentalenyl)bis(triphenylphosphine)ruthenium(II): synthesis, structural characterization and catalytic activity in the dimerization of phenylacetylene

“…There is a disordered solvent molecule of pentane in the cell sitting on an inversion center. The bond distances and bond angles ( Table 2) are similar to those reported for (g 5 -C 5 H 5 )Ru(PPh 3 ) 2 Cl [14], (g 5 -C 5 Me 5 )Ru(PPh 3 ) 2 Cl [15] and (g 5 -indenyl)Ru(PPh 3 ) 2 Cl [16]. Comparisons with the latter compound are perhaps the most appropriate from the perspective of the fused hydrocarbon ligand.…”

Atom‐Transfer Radical Addition (ATRA) and Cyclization (ATRC) Reactions Catalyzed by a Mixture of [RuCl2Cp*(PPh3)] and Magnesium

“…The complex shows the expected “piano stool” geometry (Figure 1). With values of 2.4042(5) and 2.3775(5) Å, respectively, the RuCl bonds of 1 are shorter than those found for the related Ru II complex [RuClCp*(PPh 3 ) 2 ] ( 2 ) (2.4575(5) Å) 12. The RuP bond of 1 , on the other hand, is slightly longer than that observed for 2 ( 1 : 2.3505(5) Å; 2 : 2.3364(6) and 2.3449(5) Å).…”

Atom Transfer Radical Additions with the Cationic Half‐Sandwich Complex [Cp*Ru(PPh3)2(CH3CN)]OTf

“…A graphic representation of the structure of 4 is depicted in Figure 3. ORTEP [13] drawing of the molecular structure of 4 in the crystal. The hydrogen atoms and the solvent molecules (3 × CH 2 Cl 2 ) are omitted for clarity.…”

“…The Ru-P bond lengths [Ru1-P1 2.3709(6) Å, Ru1-P2 2.3462(7) Å] are similar to what has been found for the neutral complex 1. [13] In order to investigate the influence of the NaOTf salt during the synthesis of complex 2, we have performed the reduction of [Cp*RuCl 2 ] 2 with zinc in acetonitrile in the absence of this salt. The formation of a trisacetonitrile complex [Cp*Ru(CH 3 CN) 3 ] + (3) was observed but as the counterion, the tetrachlorozincate anion was formed as revealed by single-crystal X-ray analysis (Scheme 3, Figure 2).…”

“…13 The resulting solution was placed in an oil bath tempered at 40°C. After the given time, a sample (20 μL) was removed from the reaction mixture, diluted with CDCl 3 (550 μL) and analyzed by 1 H NMR spectroscopy or gas chromatography.…”