904319-51-3Relevant academic research and scientific papers
Reactions of [η5:σ-Me2C(C5H4)(C 2B10H10)]Ru(COD) with Lewis bases: Synthesis, structure, and electrochemistry of ruthenium amine, nitrile, carbene, phosphite and phosphine comple
Sun, Yi,Chan, Hoi-Shan,Dixneuf, Pierre H.,Xie, Zuowei
, p. 3071 - 3082 (2007/10/03)
Treatment of [η5:σ-Me2C(C5H4) (C2B10H10)]Ru(COD) (1) with phosphites, phosphines, amines or N-heterocyclic carbene in THF afforded the COD displacement complexes [η5:σ
Reaction scope and mechanism of sterically induced ruthenium-mediated intramolecular coupling of o-carboranyl with cyclopentadienyl. Synthesis and structure of ruthenium complexes incorporating doubly linked cyclopentadienyl-carboranyl ligands
Sun, Yi,Chan, Hoi-Shan,Xie, Zuowei
, p. 4188 - 4195 (2008/10/09)
Reactions of [Me(R1)A(C5H3R 2)(C2B10H10)]Li2 (A = C, Si; R1 = H, Me; R2 = H, Me) with 1 equiv of RuCl 2(PPh3)3 in THF afforded the corresponding doubly linked cyclopentadienyl-carboranyl ruthenium-(II) hydride complexes [η-Me2C(C5H3)(C2B 10H10)]RuH(PPh3)2 (6), [η 5-MeHC(C5H3)(C2B10H 10)]RuH-(PPh3)2 (7), [η5-Me 2C(5-Me-C5H2)(C2B10H 10)]RuH(PPh3)2 (8), [η5-Me 2C(3/4-Me-C5H2)(C2B 10H10)]RuH-(PPh3)2 (9a/9b), and [η5-Me2Si(C5H3)(C 2B10H10)]RuH(PPh3)2 (10) in 72-85% isolated yields. On the other hand, interaction of [Me 2C(C5H4)(C2B10H 10)]Li2 with 1 equiv of RuCl2[PPh 2(OEt)]3 produced only [η5:σ-Me 2C(C5H4)((C2B10H 10)]Ru[PPh2(OEt)]2 (14). An equimolar reaction of [Me2C(C5H4)(C2B 10H10)]-Li2 with RuCl2(PPh 3)3 in the presence of dppe (dppe = 1,2-bis(diphenylphosphino)ethane) generated [η5:σ-Me 2C(C5H4)(C2B10H 10)]Ru(dppe) (15). No ruthenium hydride complexes were detected in the latter two cases. Treatment of [η5-Me2C(C 5H3)(C2B10H 10)]RuH(PPh3)2 (6) with excess HBF 4·OEt2 in toluene gave the neutral ligand Me 2C(C5H4)(C2B10H 10) (12). This work showed that such intramolecular coupling reactions were driven by steric factors. A possible reaction mechanism was proposed to account for these ruthenium-mediated coupling reactions. All new complexes were fully characterized by multinuclear NMR techniques and elemental analyses. Molecular structures of 6, 7, and 8 were further confirmed by single-crystal X-ray analyses.
