120214-43-9

Upstream product

• 24846-20-6 {Ru(CO)2(CH₃COO)(CH₃CN)}2 
• 40958-82-5 sodium pyrazolide 
• 109665-54-5 (ruthenium)2(carbonyl)6(μ2-η2-pyrazolato)2=Dirutheniumhexacarbonyl-bis(μ2-η2-pyrazolato) 
• 177562-49-1 Ru₂(CO)4(C₃H₃N₂)2(C₃H₄N₂)2 
• 603-35-0 triphenylphosphine 

Downstream Products

• 177562-47-9 Ru₂(CO)4I(C₃H₃N₂)2(P(C₆H₅)3)2⁽¹⁺⁾*I₃^(1-)=[Ru₂(CO)4I(C₃H₃N₂)2(P(C₆H₅)3)2]I₃ 

Relevant academic research and scientific papers

Zweikernige Rutheniumcluster mit stickstoff- und sauerstoffhaltigen Chelatbruecken: Ueberfuehrung von μ2-η2-Pyrazolato- in μ1-η1-Pyrazolliganden durch Reaction mit Carbonsaeuren

The dinuclear cluster Ru2(CO)6(μ2-η2-PZ)2 are accessible from the reaction of Ru3(CO)12 with the r

Specific synthesis and reaction of hetero- and homobridged diruthenium carbonyl complexes containing one or two μ-azolato bridges

Diruthenium(I) carbonyl complexes with either hetero- or homobridges, [Ru2(μ-Pz)2(CO)4-(HPz)2] (1), [Ru2(μ-Pz′)(μ-O2CMe)(CO) 4(HPz′)2] (2), and [Ru2(μ-Pz′)2(CO)4(HPz′)2] (3), can be prepared specifically. These complexes reacted with either nucleophiles or electrophiles to produce selectively only one product. The terminal azole groups, pyrazole (HPz) or 3,5-dimethylpyrazole (HPz′), of 1-3 are easily replaced by the phosphine ligands to give [Ru2-(μ-Pz)2(CO)4(PPh3) 2] (4), [Ru2(μ-Pz′)(μ-O2CMe)(CO)4(PPh 3)2] (5), [Ru2(μ-Pz′)2(CO)4(PPh 3)2] (6), and [Ru2(μ-Pz)2(CO)4(η 1-dppm)2] (7). The μ-acetato bridge is more fragile than the μ-azolato bridge, and only the former bridge of 5 can be replaced by Pz- and SR- to afford [Ru2(μ-Pz′)(μ-Pz)(CO)4(PPh3) 2] (8) and [Ru2(μ-Pz′)(μ-SR)(CO)4(PPh3) 2] (R = Ph (9), tBu (10)). Heating the mixture of 3 with dppm in THF gave a product retaining all the μ-azolato bridges but losing two carbonyls, [Ru2(M-Pz′)2(CO)2(μ 1,η2-dppm)2] (11), whereas a similar reaction between 1-3 and nitrogen-bidentate ligands gave products retaining all four carbonyls but only one μ-azolato bridge, [Ru2(μ-L)(μ-CO)2(CO)2(μ 1,η2-(N-N))2]+ (L = Pz, N-N = bpy ([12]+), phen ([13]+); L = Pz′, N-N = bpy ([14]+), phen ([15]+)). The electrophilic addition of 4 with I2 produced [Ru2(μ-Pz)2(μ-I)(CO)4(PPh 3)2][I3] (16). The X-ray structure of this product confirms the cleavage of the Ru-Ru bond rather than the μ-azolato bridges. However, the μ-azolato and -acetato bridges, as well as the terminal azole groups, of 1-6 can be easily removed by an electrophilc reagent such as Et3O+BF4- in the presence of MeCN to give [Ru2(CO)4-(MeCN)6][BF4]2 and [Ru2(CO)4(MeCN)4(PPh3) 2][BF4]2.

The synthesis of some binuclear ruthenium(I) complexes bridged by anionic groups. X-ray structures of pyrazolate- and oxypyridinate-bridged complexes

A series of binuclear ruthenium(I) complexes, , have been prepared by two closely related routes.Complexes 2 (XY- = S2NC3H4-) and 3 (XY- = NC5H4O-) have been prepared by the reaction of with sodium 2-mercaptothiazolinate and sodium 2-oxypyridinate, respectively.The related pyrazolate-bridged complex 4 (XY- = N2C3H3-) was prepared by the reaction of sodium pyrazolate with followed by addition of PPh3.The X-ray structures of compounds 3 and 4 have been determined.Compound 3 crystallizes in the triclinic space group P1 with a 14.766(2), b 15.821(2), c 10.745(3) Angstroem, α 98.28(2) deg, β 11.99(2) deg, γ 103.29(1) deg, V 2209.1 Angstroem3, Z = 2.On the basis of 5521 unique observations (NO) and 379 parameters varied (NV) the structure has been refined to R = 0.042 and Rw = 0.054.Compound 4 crystallizes in the orthorombic space group P212121 with a 13.220(2), b 14.864(4), c 21.403(3) Angstroem, V 4200.7 Angstroem3 and Z = 4.This structure has been refined to R = 0.041 and Rw = 0.023 for NO = 3915 and NV = 546.Both structures display the sawhorse arrangement of carbonyl groups and have the phosphine ligands in the axial positions opposite the Ru-Ru binds.For 3 the oxypyridinate groups are bound in a head-to-tail arrangement.The two-atom pyrazolate bridge imparts more strain than the three-atom oxypyridinate bridge and as a result the equatorial planes of the Ru centers are tipped by only 16.2(4) deg in 3 but by 35.4(1) deg in 4.The Ru-Ru distances (2.7108(4) Angstroem (3); 2.732(1) Angstroem (4)) correspond to normal single bonds.