| MoFe_3S_4(S_2CNC_4H_8)_5和WFe_3S_4(S_2CNC_4H_8)_5单立方烷簇合物的快原子轰击质谱研究 |
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| 引用本文： | 蔡元坝,戴亮,刘秋田,雷新建,康北笙.MoFe_3S_4(S_2CNC_4H_8)_5和WFe_3S_4(S_2CNC_4H_8)_5单立方烷簇合物的快原子轰击质谱研究[J].结构化学,1992(6). |
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| 作者姓名： | 蔡元坝 戴亮 刘秋田 雷新建 康北笙 |
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| 作者单位： | 中国科学院福建物质结构研究所福州结构化学开放实验室，中国科学院福建物质结构研究所福州结构化学开放实验室，中国科学院福建物质结构研究所福州结构化学开放实验室，中国科学院福建物质结构研究所福州结构化学开放实验室，中国科学院福建物质结构研究所福州结构化学开放实验室 福州 350002，福州 350002，福州 350002，福州 350002，福州 350002 |
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| 摘 要： | 本文报道了标题簇合物的快原子轰击质谱(FAB—MS)研究,提出了标题簇合物质谱的可能断裂途径及其结构相关性。指出标题簇合物的FAB—MS与电子轰击谱(EI—MS)所表现的两种迥然不同的断裂模式。观察到单立方烷缺一个顶点和缺二个顶点的碎片离子如WFe_2S_3(S_2CNC_4H_8)_2]~+、(MoFe_2S_3(S_2CNC_4H_8)_3]~+和WFeS_3(S_2CNC_4H_8)_3]~+、MoFe_3S_3(S_2CNC_4H_8)_2]~+等,而后者的簇芯(MoFe_3S_3)结构具有缺口的立方烷状构型特点,是目前合成工作者期待合成但尚未合成出的一种固氮模型物。
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Studies of the FAB Mass Spectra of Cubane-Like Clusters MFe_3S_4L_5(M=Mo,W;L = S_2CNC_4H_8) |
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| Abstract: | The fast atom bombardment mass spectra (FAB - MS) of MFe3S4L5 were reported, on which the fragmentation pathways were proposed in accordance with view of structural chemistry, showing a fragmentation mode dictinctly different from that happened in electron impact (EI) mass spectra of the title compounds. We also observed in these experiments some novel ion fragments of incompleted cubane-like cluster with 1 or 2 apoices of cubane missed , such as WFe2S3L2+,MoFe2S3L3+, WFe3S3L3+ and MoFe3S3L2+. The last with an apex of sulfur of cubane missed seems to be an analogous to the string-bag model for the active center of nitroge-nase speculated by Prof. Lu. Jiaxi. It appeared that this incompleted cubane-like cluster compound which has still not been obtained by synthesis could be observed under condition of mass spectrometry. |
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