首页> 美国政府科技报告 >Homo- and Hetero-Bimetallic Mu(Eta1-O:Eta1-O') Formate Complexes (M-OCHO-M')+PF6-(M,M'=(Eta5-C5H5)(CO)(NO)Re, (Eta5-C5H5)(CO)3W, and (Eta5-C5H5)(CO)2Fe): Their Synthesis, Solution Lability, and Reactivity Towards Hydride Donors

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Homo- and Hetero-Bimetallic Mu(Eta1-O:Eta1-O') Formate Complexes (M-OCHO-M')+PF6-(M,M'=(Eta5-C5H5)(CO)(NO)Re, (Eta5-C5H5)(CO)3W, and (Eta5-C5H5)(CO)2Fe): Their Synthesis, Solution Lability, and Reactivity Towards Hydride Donors

机译：同型和异型双金属mu（Eta1-O：Eta1-O'）甲酸盐配合物（m-OCHO-m'）+ pF6-（m，m'=（Eta5-C5H5）（CO）（NO）Re，（ Eta5-C5H5）（CO）3W和（Eta5-C5H5）（CO）2Fe）：它们的合成，溶液稳定性和对氢化物供体的反应性

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The rhenium and tungsten (eta 1-O) formates Cp(NO)(CO)Re-OC(O)H and Cp(CO)3W-OC(O)H are available through protonolysis (HBF4-HCO2H) of their methyl complexes. These formates, in turn, afford homobimetallic (ReRe) and (WW) mu(eta1-O,O') formates M-OCHO-M+ upon reacting with requisite organometallic Lewis acid (M-H/Ph3C+). Analogous heterobimetallic mu-formates (FpRe) and (FpW) (Fp=Cp(CO)2Fe) also are prepared using similar reaction chemistry. The (ReRe)mu-formate salt is labile in solution; its dissociative equilibrium can be intercepted with FpOC(O)H to give the mixed (FpRe)mu-formate. Tungsten-containing bimetallic mu-formate salts, in contrast, do not reversibly dissociate in solution. Reactions of hydride donors, including Et3BDLi, with Cp(CO)3W-OCHO-W(CO)3Cp+ give only the W formate and Cp(CO)3W-H(D); no evidence was found for hydride (deuteride) adding to the carboxylate carbon of the formate bridge. (MJM)

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作者
Tso, C. C.; Cutler, A. R.;
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年度 1988
页码 p.1-23
总页数 23
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Formates; Methyl radicals; Rhenium; Tungsten; Chemical reactions; Dissociation; Equilibrium(General); Hydrides; Reactivities; Synthesis;

机译：甲酸酯;甲基;铼;钨;化学反应;解离;平衡（一般）;氢化物;反应性;合成;

Homo- and Hetero-Bimetallic Mu(Eta1-O:Eta1-O') Formate Complexes (M-OCHO-M')+PF6-(M,M'=(Eta5-C5H5)(CO)(NO)Re, (Eta5-C5H5)(CO)3W, and (Eta5-C5H5)(CO)2Fe): Their Synthesis, Solution Lability, and Reactivity Towards Hydride Donors

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