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化学学报
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化学学报 ›› 1995, Vol. 53 ›› Issue (2): 158-162. 上一篇    下一篇

研究论文

激光产生的硼磷簇离结构的质谱研究

刘朝阳;黄荣彬;黄春儒;郑兰荪;齐飞;俞书勤   

  1. 厦门大学化学系;厦门大学固体表面物理化学国家重点实验室;中国科学技术大学近代化学系
  • 发布日期:1995-02-15

Mass spectrometry of B~n^±,P^±~n and B~nP^±~m generated by laser ablation

LIU CHAOYANG;HUANG RONGBIN;HUANG CHUNRU;ZHENG LANSUN;QI FEI;YU SHUQIN   

  • Published:1995-02-15

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在高真空中以脉冲激光束溅射单质硼磷及其混合物,产生了非常丰富的B~n^±,P^±~n与B~nP^±~m 对飞行时间质谱的分析发现:实验产生的硼原子簇离子基本上为同一构型,可能为密堆积的结构;磷原子簇的基本结构单元为P~8;磷与硼磷簇离子中可能存在平面环的类芳香性稳定结构; 所有这些簇离子均有使其所有价电子成对的强烈倾向.

关键词: 质谱法, 硼, 磷, 飞行时间质谱法, 原子簇, 激光溅射

By laser ablating the pure B and P powders and their mixture, abundant Bn?Pn?and BnPm?cluster ions were produced and recorded subsequently by the time-of-flight mass spectrometers. Almost all Bn?observed in this experiment have a similar structure, which is believed to be the close packed structure. The magic no. for Pn?is 8, which is 1 of their structural units. It is possible that some Pn? as well as some BnPm?cluster ions, may have a ring structure. All Pn?Bn?cluster ions have a strong tendency to have their electrons paired.

Key words: MASS SPECTROGRAPHY, BORON, PHOSPHORUS, TIME-OFF FLIGHT MASS SPECTROMETRY, ASER SPUTTERING

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