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化学学报
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化学学报 ›› 1999, Vol. 57 ›› Issue (8): 937-942. 上一篇    

研究论文

四面体手性簇合物CpMo(RCp)WFe(CO)~7(μ~3-S)和CpW(RCp)MoFe(CO)~7 (μ~3- S)的合成及结构表征(R=CO~2Et,COMe,n-Bu)

徐峰;杨世琰;孙文华;殷元骐   

  1. 中国科学院兰州化学物理研究所.兰州(730000)
  • 发布日期:1999-08-15

Syntheses and characterizations of tetrahedral chiral clusters CpMo (RCp)WFe(CO)~7(μ~3-S) and CpW(RCp)MoFe(CO)~7(μ-S)(R=CO~2Et, COMe,n- Bu)

Xu Feng;Yang Shiyan;Sun Wenhua;Yin Yuanqi   

  1. Lanzhou Inst Chem Phys, CAS.Lanzhou(730000)
  • Published:1999-08-15

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被引次数

1

种用等瓣置换法,通过M^*[(R-Cp)M^1(CO)~3](R=CO~2Et,COMe;M^*=Na;R=n-Bu;M*=Li)与CpM^2FeCo(CO)~8(μ~3-S)反应,得到六种环戊二烯配体含有较大取代基的含硫四面体手性簇合物(R-Cp)M^1CpM^2Fe(CO)~7(μ~3-S)(I-3:M^1=W,M^2=Mo,R=CO~2Et;Ⅱ:M^1=W,M^2=Mo,R=COMe;Ⅲ:M^1=W,M^2=Mo,R=n-Bu;Ⅳ-2:M^1=Mo,M^2=W,R=CO~2Et;Ⅴ:M^1=Mo,M^2=W,R=COMe;Ⅵ:M^1=Mo,M^2=W,R=n-Bu).通过元素分析,IR,1^H/^1^3CNMR对合成的簇合物结要构进行了表征,并讨论了反应途径。

关键词: 簇合物, 四面体, 结构表征, 环戊二烯P, 钼络合物, 元素分析, 红外分光光度法, 质子磁共振谱法, 羰基络合物

The reactions of M^*[(R-Cp)M^1(CO)~3](R=CO~2Et,COMe;M^*=Na;R=n-Bu; M*=Li)with CpM^2FeCo(CO)~8(μ~3-S) have been carried out to give six tetrahedral chiral clusters(R-Cp)M^1CpM^2Fe(CO)~7(μ~3-S)(I-3:M^1=W, M^2=Mo, R=CO~2Et; Ⅱ:M^1=W,M^2=Mo,R=COMe;Ⅲ:M^1=W,M^2=Mo,R=n-Bu;Ⅳ-2: M^1=Mo, M^2=W,R=CO~2Et;Ⅴ:M^1=Mo,M^2=W,R=COMe; Ⅵ:M^1=Mo,M^2=W,R=n-Bu) having large substituting group in cyclopentadienyl. These clusters were characterized by elemental analyses,IR and ^1H/^1^3C NMR. The possible reaction path-ways were also discussed herewith. The cluster M*[(R-Cp) M^1(CO)~3] can give the group [(R-Cp)M^1(CO)~2](d^5ML~5) under reaction conditions,which have isolobal analogue to the group Co(CO)~3(d^9ML~3) in cluster (R-Cp)M^1CpM^2Fe(CO)~7(μ~s-S). The title clusters are derived from isolobl displacement reaction between the cluster M^*[(R-cp)M^1 (CO)~3] and (R-Cp)M^1Cp-M^2Fe(CO)~7(μ~3-S).

Key words: TETRAHEDRAL, STRUCTURE CHARACTERISTICS, CYCLOPENTADIENE P, MOLYBDENUM COMPLEX, ELEMENTAL ANALYSIS, INFRARED SPECTROPHOTOMETRY, PROTON MAGNETIC RESONANCE SPECTROMETRY, CARBONYL COMPLEX

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