Singh D M David Jeba, Pradeep T, Bhattacharjee Joydeep, Waghmare U V
J Phys Chem A. 2005 Aug 25;109(33):7339-42. doi: 10.1021/jp052454u.
Laser evaporation of MoS(2) nanoflakes gives negatively charged magic number clusters of compositions Mo(13)S(25) and Mo(13)S(28), which are shown to have closed-cage structures. The clusters are stable and do not show fragmentation in the post-source decay analysis even at the highest laser powers. Computations suggest that Mo(13)S(25) has a central cavity with a diameter of 4.5 A. The nanosheets of MoS(2) could curl upon laser irradiation, explaining the cluster formation.
二硫化钼纳米薄片的激光蒸发产生了带负电荷的组成成分为Mo₁₃S₂₅和Mo₁₃S₂₈的幻数团簇,这些团簇具有封闭笼状结构。这些团簇很稳定,即使在最高激光功率下的源后衰变分析中也未显示出碎片化。计算表明Mo₁₃S₂₅有一个直径为4.5埃的中心腔。二硫化钼纳米片在激光照射下可能会卷曲,这解释了团簇的形成。