Fe_3(CO)_(12)与4个S,N取代的杂环硫代酰胺配前体[SCSC(SR)NNPh(SL_n),其中SL_1:R=Me;SL_2:R=Et;SL_3:R=n-Pr;SL_4:R=i-Bu]反应,合成得到含硫氮杂环卡宾配体的通式为[Fe_3(CO)_8(μ_3-S)_2L]的4个新羧合铁簇合物(1～4).其配体S原子和杂环卡宾L皆来自配前体SL的劈开.对它们进行了元素分析,IR,~2H NMR和MS表征,并用X射线衍射测定了2的晶体分子结构,表明含硫氮杂环分子片CSC(SR)NNPh(L)的卡宾碳具有sp~2成键特征,其C_(卡宾)键长为0.1960nm.2的分子几何构型维持母体物[Fe_3(CO)_9(μ_3-S)_2]的形状,其中卡宾基取代四方锥分子骨架Fe_3S_2基底平面Fe(1)S(1)Fe(3)S(2)的Fe(3)原子上径向位置的一个端羰基CO. SC_ (SC) NNPh (SL_n), where SL_1: R = Me; SL_2: R = Et; SL_3: R = n-Pr; SL_4: R = i-Bu] to synthesize four new carboxylate clusters of the general formula [Fe_3 (CO) _8 (μ_3-S) _2L] (1 ~ 4) .The ligand S atom and heterocyclic carbene L are both cleaved from the ligand precursor SL.They were characterized by elemental analysis, IR, ~ 2H NMR and MS, and X-ray diffraction 2. The results show that the carbene carbon of CSC (SR) NNPh (L) has the sp ~ 2 bond character and the C_ (Carbad) bond length is 0.1960nm.2 The shape of [Fe_3 (CO) _9 (μ_3-S) _2] was maintained, in which the carbenes replaced the Fe (3) with the tetragonal cone skeleton Fe_3S_2 ) At one atom of the radial position of the terminal carbonyl CO.