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首页> 外文期刊>Organometallics >Cluster construction by reactions of an isomeric pair of trinuclear clusters containing a tetrathiotungstate fragment, [{Cp ' Ru(Co)}(2){W(mu-S)(4)}] and [{Cp ' Ru(CO)}(2){W(= S)(u(3)-S)(mu-S)(2)}] (Cp ' = eta(5)-C5Me5, eta(5)-C5Me4Et), with platinum
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Cluster construction by reactions of an isomeric pair of trinuclear clusters containing a tetrathiotungstate fragment, [{Cp ' Ru(Co)}(2){W(mu-S)(4)}] and [{Cp ' Ru(CO)}(2){W(= S)(u(3)-S)(mu-S)(2)}] (Cp ' = eta(5)-C5Me5, eta(5)-C5Me4Et), with platinum

机译:通过包含四硫钨酸盐片段[{Cp'Ru(Co)}(2){W(mu-S)(4)}]和[{Cp'Ru(CO)}的三核簇的异构对对的反应来构建簇(2){W(= S)(u(3)-S)(mu-S)(2)}](Cp'= eta(5)-C5Me5,eta(5)-C5Me4Et),含铂

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The reactions of the isomeric pair of trinuclear clusters [{Cp'Ru(CO)}(2){W(mu -S)(4)}] (3) and [{Cp'Ru(CO)}(2){W(=S)(mu (3)-S)(mu -S)(2)}] (4) with 1 equiv of [PtMe2(cod)] gave the respective tetranuclear clusters [{Cp'Ru(CO)}(2){W(mu (3)-S)(2)(mu -S)(2)}(PtMe2)] (5) and [{Cp'Ru(CO)}(2){W(=S)-(mu (3)-S)(3)}(PtMe2)} (6) (Cp' = eta 5-C5Me5 (=Cp*), eta (5)-C5Me4Et) containing a tetrathiotungstate fragment as the main products, which corresponds to an isomeric pair. The pentanuclear cluster [{Cp'Ru(CO)}(2){W(mu (3)-S)(4)}(PtMe2)(2)] (7) was obtained by the reaction of [{Cp'Ru(CO)}(2)-{W(mu -S)(4)}] (3) with 2 equiv of [PtMe2(cod)]. Treatment of [{Cp*Ru(CO)}(2){W(mu (4)-S)(2)(mu -S)(2)}-(PtMe2)] (5a) with excess HCl underwent monochlorination of the methyl ligand in the PtMe2 moiety to give [{Cp*Ru(CO)}(2){W(mu (3)-S)2(mu -S)(2)}(PtClMe)] (8) selectively. In the reaction of [{Cp*Ru(CO)}(2){W(mu (3)-S)(4)(PtMe2)(2)] (7a) with 1 equiv of HCl, monochlorination at one platinum center took place to give[{Cp*Ru(CO)}(2){W(mu (3)-S)(4)}(PtClMe)(PtMe2)] (10) quantitatively, whereas the reaction of Ma with excess HCl took place with monochlorination at each platinum center to give [{Cp*Ru(CO)}(2){W(mu (3)-S)(4)}(PtClMe)(2)] (9). the trinuclear cluster [{Cp'Ru(CO)}(2){W(mu -S)(4)}] (3) reacted with the platinum(0) complex [Pt(C2H4)(PPh3)(2)] to give the novel pentanuclear cluster [{Cp'Ru(CO)}(WS4)(Cp'Ru{Pt-2(PPh3)2(mu -CO)}] (11). The product 11 has a new platinum-platinum bond bridged by a carbonyl ligand which is originally located on a ruthenium center. The tetrathiotungstate ligand in 11 bridges the ruthenium fragment Cp'Ru(CO) and the three-membered metallacycle (Cp'Ru){Pt(PPh3)}(2)-(mu -CO). [References: 31]
机译:三核簇[{Cp'Ru(CO)}(2){W(mu -S)(4)}](3)和[{Cp'Ru(CO)}(2){ W(= S)(mu(3)-S)(mu -S)(2)}](4)与1当量的[PtMe2(cod)]给出各自的四核簇[{Cp'Ru(CO)} (2){W(mu(3)-S)(2)(mu -S)(2)}(PtMe2)](5)和[{Cp'Ru(CO)}(2){W(= S )-(mu(3)-S)(3)}(PtMe2)}(6)(Cp'= eta 5-C5Me5(= Cp *),eta(5)-C5Me4Et)含有四硫钨酸盐片段作为主要产物,对应于同分异构对。戊核簇[{Cp'Ru(CO)}(2){W(mu(3)-S)(4)}(PtMe2)(2)](7)是通过[{Cp'Ru (CO)}(2)-{W(mu -S)(4)}](3),其中有2当量的[PtMe2(cod)]。用过量的HCl对[{Cp * Ru(CO)}(2){W(mu(4)-S)(2)(mu -S)(2)}-(PtMe2)](5a)进行单氯甲烷处理PtMe2部分中的甲基配体以选择性地产生[{Cp * Ru(CO)}(2){W(mu(3)-S)2(mu -S)(2)}(PtClMe)](8)。在[{Cp * Ru(CO)}(2){W(mu(3)-S)(4)(PtMe2)(2)](7a)与1当量HCl的反应中,在一个铂中心进行单氯化发生定量反应[{Cp * Ru(CO)}(2){W(mu(3)-S)(4)}(PtClMe)(PtMe2)](10),而Ma与过量HCl的反应在每个铂中心进行单氯化反应,得到[{Cp * Ru(CO)}(2){W(mu(3)-S)(4)}(PtClMe)(2)](9)。三核簇[{Cp'Ru(CO)}(2){W(mu -S)(4)}](3)与铂(0)络合物[Pt(C2H4)(PPh3)(2)]反应得到新的五核簇[{Cp'Ru(CO)}(WS4)(Cp'Ru {Pt-2(PPh3)2(mu -CO)}](11)。产品11具有新的铂铂由最初位于钌中心的羰基配体桥接的键。11中的四硫钨酸盐配体桥接钌片段Cp'Ru(CO)和三元金属环(Cp'Ru){Pt(PPh3)}(2) -(mu -CO)。[参考:31]

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