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用紫外、可见、红外光谱对FeCl_3+(NH_4)_2MoS_4+NaOCH_3体系在不同的NaOCH_3/FeCl_3,Mo/Fe配比以及不同加料顺序和不同反应时间条件下生成Mo-Fe-S簇合物的可能性及其成簇类型进行了研究。当NaOCH_3/FeCl_3(摩尔比)大于20或小于5时,体系不能生成Mo-Fe-S簇。NaOCH_3/FeCl_3在6—9时可生成产物Ⅰ;在11—20盹生成产物Ⅱ。Mo/Fe摩尔比值与成簇类型无关。加料顺序只改变成簇时间,与成簇类型无关。
The possibility of forming Mo-Fe-S clusters with different molar ratios of NaOCH 3 / FeCl 3, Mo / Fe, different loading sequences and different reaction times was studied by UV, Vis and FTIR spectra of FeCl_3 + (NH_4) _2MoS_4 + NaOCH_3 system And its clustering types were studied. When NaOCH 3 / FeCl 3 (molar ratio) is more than 20 or less than 5, the system can not generate Mo-Fe-S clusters. NaOCH_3 / FeCl_3 at 6-9 can produce product Ⅰ; nap at 11-20 to produce product Ⅱ. Mo / Fe molar ratio has nothing to do with the type of cluster. The order of addition changes only the cluster time, regardless of the type of cluster.