The reaction of HFe_2Co(CO)_9(μ_3-S)with(η~5-C_5H_4CH_3)Mo(CO)_3CI has been carried out in refluxing tetrahydrofuran(THF)to give out heterometallic trinuclear clusters(η~5-C_5H_4CH_3)MoFeCo- (CO)_8(μ_3-S)and(η~5-...The reaction of HFe_2Co(CO)_9(μ_3-S)with(η~5-C_5H_4CH_3)Mo(CO)_3CI has been carried out in refluxing tetrahydrofuran(THF)to give out heterometallic trinuclear clusters(η~5-C_5H_4CH_3)MoFeCo- (CO)_8(μ_3-S)and(η~5-C_5H_4CH_3)_2Mo_2Fe(CO)_7(μ_3-S)by electrophilic addition-elimination reaction.Howev- er,(η~5-C_5H_4CH_3)Fe(CO)_2Cl reacted with HFe_2Co(CO)_9(μ_3-S)at room temperature to yield a tetranuclear cluster(η~5-C_5H_4CH_3)Fe_3Co(CO)_(11)(μ_4-S).The μ_4-S cluster could be used as an intermediate in confirmation of the mechanism of the electrophilic addition-elimination reaction.The syntheses,characterizations and X-ray crystal structures of these clusters are reported herein as well as the discussion on the reaction mecha- nism.展开更多
A novel heterometallic V2Ag2S4 thiocubane cluster was isolated from an assembly reaction system including (NH4)3VS4, Ag(PPh3)2NO3, OC4H8dtcNa and PhSNa in DMF. The title compound crystallizes in monoclinic space group...A novel heterometallic V2Ag2S4 thiocubane cluster was isolated from an assembly reaction system including (NH4)3VS4, Ag(PPh3)2NO3, OC4H8dtcNa and PhSNa in DMF. The title compound crystallizes in monoclinic space group C2/c with a = 2.0448(3) nm, b= 1.5086(2) nm, c= 1.7923(2) nm, β=109.32(1)°. The structure of the title compound was solved by using 1 500 (I>3σ(I)) unique reflections and refined to R = 0.068. The structural features indicate the formal oxidation state of V(IV) + Ag (I), and partial charge transfer from Ag(I) to V(IV). The actions of reactants used in the reaction are discussed and a supposed formation process of the V2Ag2S4 cluster is suggested.展开更多
文摘The reaction of HFe_2Co(CO)_9(μ_3-S)with(η~5-C_5H_4CH_3)Mo(CO)_3CI has been carried out in refluxing tetrahydrofuran(THF)to give out heterometallic trinuclear clusters(η~5-C_5H_4CH_3)MoFeCo- (CO)_8(μ_3-S)and(η~5-C_5H_4CH_3)_2Mo_2Fe(CO)_7(μ_3-S)by electrophilic addition-elimination reaction.Howev- er,(η~5-C_5H_4CH_3)Fe(CO)_2Cl reacted with HFe_2Co(CO)_9(μ_3-S)at room temperature to yield a tetranuclear cluster(η~5-C_5H_4CH_3)Fe_3Co(CO)_(11)(μ_4-S).The μ_4-S cluster could be used as an intermediate in confirmation of the mechanism of the electrophilic addition-elimination reaction.The syntheses,characterizations and X-ray crystal structures of these clusters are reported herein as well as the discussion on the reaction mecha- nism.
基金Project supported by NNSFC and the Natural Science Foundation of Fujian.
文摘A novel heterometallic V2Ag2S4 thiocubane cluster was isolated from an assembly reaction system including (NH4)3VS4, Ag(PPh3)2NO3, OC4H8dtcNa and PhSNa in DMF. The title compound crystallizes in monoclinic space group C2/c with a = 2.0448(3) nm, b= 1.5086(2) nm, c= 1.7923(2) nm, β=109.32(1)°. The structure of the title compound was solved by using 1 500 (I>3σ(I)) unique reflections and refined to R = 0.068. The structural features indicate the formal oxidation state of V(IV) + Ag (I), and partial charge transfer from Ag(I) to V(IV). The actions of reactants used in the reaction are discussed and a supposed formation process of the V2Ag2S4 cluster is suggested.
