N2 Activation by Neutral Ruthenium Clusters
N2 Activation by Neutral Ruthenium Clusters
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DOI：
10.1021/jp401876b
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发表时间：
2013-06
影响因子：
3.7
通讯作者：
C. Kerpal;D. Harding;Jonathan T. Lyon;G. Meijer;A. Fielicke
中科院分区：
文献类型：
--
作者：
C. Kerpal;D. Harding;Jonathan T. Lyon;G. Meijer;A. Fielicke
用红外多光子解离光谱研究了氮分子与中性Ru团簇形成配合物时的活化过程。RunN 2 m（n = 5-16; m = 1，2）的测量频率落在2110和2201 cm-1之间的范围内，并且可以归因于化学吸附的σ-键合N2，其对应于金属表面上的γ-状态。频带的位置是不依赖于N2的覆盖范围，但显着的变化被发现取决于集群的大小。
The activation of nitrogen molecules when forming complexes with neutral Ru clusters in the gas phase has been investigated by probing their N–N stretching frequencies using infrared multiple photon dissociation spectroscopy. The measured frequencies for RunN2m (n = 5–16; m = 1, 2) fall in the range between 2110 and 2201 cm–1 and can be attributed to chemisorbed σ-bonded N2, which corresponds to the γ-state on metal surfaces. The band positions are not dependent on the N2 coverage, but significant variations are found depending on cluster size.