177612-52-1Relevant academic research and scientific papers
Alkynethiolato and alkyneselenolato ruthenium half-sandwich complexes: Synthesis, structures, and reactions with (η5-C5H5)2Zr
Sunada,Hayashi,Kawaguchi,Tatsumi
, p. 7072 - 7078 (2001)
Alkynethiolato and alkyneselenolato complexes of ruthenium, CpRu(PPh3)2(EC≡CR) (Cp = η5-C5H5; E = S, R = Ph (1a), SiMe3 (1b), tBu (1c); E = Se, R = Ph (2a), SiMe3 (2b)), were synthesized by the reactions of CpRuCl-(PPh3)2 with corresponding lithium alkynechalcogenolates in THF. An analogous reaction of Cp*RuCl(PEt3)2 (Cp* = η5-C5Me5) with LiSC≡CPh produced Cp*Ru(PEt3)2(SC≡CPh) (3). Complexes 1a and 2a were allowed to react in THF with Cp2Zr , generated in situ from CP2ZrCl2 and 2 equiv of n-BuLi, from which the S-bridged Ru-Zr dinuclear complexes CpRu(PPh3)(C≡CPh)(μ-S)ZrCp2 (4a) and CpRu(PPh3)(C≡CPh)(μ-Se)ZrCp2 (4b) were isolated, respectively. In these complexes, C-S(Se) bond cleavage of the alkynechalcogenolate ligands was promoted by Cp2Zr , and the Zr atom was oxidized from II to IV. Treatment of 4a and 4b in THF under 1 atm CO gave rise to CpRu(CO)(C≡CPh)(μ-E)ZrCp2 (E = S (5a), Se (5b)), while addition of tert-butyl isocyanide to a THF solution of 4b afforded CpRu(CNtBu)(C≡CPh)(μ-Se)ZrCp2 (6). The crystal structures of 1a, 1c, 2a, 2b, 3, 4a, 4b, and 5b were determined by X-ray diffraction analysis.
Metal complexes of functionalized sulfur containing ligands, X [1] synthesis of ruthenium(II) and platinum(II) 1-alkyne-1-thiolato complexes. X-ray structure analysis of trans-(Ph3P)2Pt[S-C≡C-C(CH3) 3]2
Weigand, Wolfgang,Weishaeupl, Michael,Robl, Christian
, p. 501 - 505 (2007/10/03)
The 1-alkyne-1-thiolates R-C≡C-SLi [1a: R = C(CH3)3, 1b: R = C6H11] react with L2PtCl2 (L = PPh3, 1/2 dppe) and CpRu(PPh3)2Cl, respectively to give the complexes trans-(Ph3P)2Pt[S-C≡C-C(CH3) 3]2 (2a), cis-dppePt[S-C≡C-C(CH3)3]2 (2b), and CpRu(PPh3)2-(S-C≡C-R) [3a: R = C(CH3)3, 3b: R = C6H11]. 2a has been characterized by 31P CP/MAS NMR spectroscopy and its crystal structure determined by X-ray diffraction.
