【摘要】 以高纯氮气为载气和反应物,分别通过激光轰击NaF、NaCl、KF和KCl压制成的样品,生成了相应团簇NaN⁺_n和KN⁺_n,得到了团簇质谱图。其中,发现了钠杂氮团簇NaN⁺₂、NaN⁺₄、NaN⁺₅、NaN⁺₆、NaN⁺₈、NaN⁺₉、NaN⁺₁₀、NaN⁺₁₂和钾杂氮团簇KN⁺₂、KN⁺₄、KN⁺₆、KN⁺₈。质谱分析表明,氮原子数为奇数的钠和钾杂氮原子团簇不容易生成,而氮原子数为偶数的钠杂氮原子团簇和钾杂氮原子团簇较容易生成,其离子峰的相对强度随氮原子数增加而降低。更多还原

【Abstract】 Two new clusters of NaN⁺_n and KN⁺_n were generated by laser ablation of NaF, NaCl, KF and KCl discs with N₂ as carrier gas and reactant. According to the mass spectral analysis,NaN⁺_n clusters are easier to generate than KN⁺_n clusters. Even-number nitrogen clusters are easier to be generated than odd-number nitrogen clusters and the relative intensity of cluster ion peaks of even-number nitrogen clusters decreases with the increase of the number of nitrogen atom.更多还原