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用飞行时间质谱仪探测了直接激光气化碱式碳酸镁样品产生的质谱,结果表明:氧化镁团簇与同时产生的水分发生了原位溶剂化反应并产生了各种尺寸的溶剂化氧化镁团簇离子。这些团簇离子包括:[Mg(H2O)m]+(m=0,1,2,3),[Mg(MgO)(H2O)m]+(m=1,2,3,4),[H(MgO)(H2O)m]+(m=0,1,2,3,4,5,6),[H(MgO)2(H2O)m]+(m=0,1,2,3,4,5,6),[H(MgO)3(H2O)m]+(m=1,2,3,4,5,6,7),[H(MgO)4(H2O)m]+(m=2,3,4,5,6,7,8)和[H(MgO)5(H2O)m]+(m=3,4,5,6,7,8,9)。它们是经过氧化镁团簇增长过程和团簇溶剂化过程交织构成的多种反应路径形成的。这些溶剂化团簇的丰度分布显示:可能存在着溶剂化的壳层结构。
The mass spectra produced by direct laser-evaporated basic magnesium carbonate samples were detected by time-of-flight mass spectrometry and the results showed that magnesia clusters were solvated in situ with the simultaneous generation of water and produced solvated magnesia of various sizes Cluster ions. These cluster ions include [Mg (H2O) m] + (m = 0,1,2,3), [Mg (MgO) (H2O) m] + (m = 1,2,3,4), [ H (MgO) (H2O) m] + (m = 0,1,2,3,4,5,6), [H (MgO) 2 (H2O) m] + (m = , 4, 5, 6), [H (MgO) 3 (H 2 O) m] + (m = 1,2,3,4,5,6,7), [H (MgO) 4 (M = 2,3,4,5,6,7,8) and [H (MgO) 5 (H2O) m] + (m = 3,4,5,6,7,8,9). They are formed by a variety of reaction pathways formed by the growth of magnesia clusters and the solvation of clusters. The abundance distribution of these solvated clusters shows that there may be solvated shell structures.