| 铁-硒二元团簇离子的产生和紫外光解 |
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| 引用本文： | 陈云清,邢小鹏,刘鹏,曾嵘,高振,朱起鹤.铁-硒二元团簇离子的产生和紫外光解[J].化学物理学报(中文版),2000,13(3):257-262. |
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| 作者姓名： | 陈云清 邢小鹏 刘鹏 曾嵘 高振 朱起鹤 |
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| 作者单位： | 分子反应动力学国家重点实验室，中国科学院化学研究所分子科学中心北京 100080
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| 摘 要： | 用激光直接溅射的方法产生了铁-硒二元团簇，并用串级飞行时间质谱仪研究了二元团簇的组份和光解规律。一级谱中组成FenSen+、FenSen-1+和FenSen-、FenSen+1-是二元团簇的结构骨架和稳定组份。团簇正离子FenSen+的紫外光解结果表明，光解产物主要为一级谱中丰度较大的离子。用密度泛函方法（DFT）优化了Fe2Se2+的几何结构，并计算了其光解通道，能较好地解释光解的实验结果。
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| 关 键 词： | 铁-硒二元团簇 激光溅射 串级飞行时间质谱仪 紫外光解 |
Formation and Photodissociation of Iron-Selenium Clusters |
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| Chen Yunqing,XING Xiaopeng,Liu Peng,Zeng Rong,Gao Zhen,Zhu Qihe.Formation and Photodissociation of Iron-Selenium Clusters[J].化学物理学报(中文版),2000,13(3):257-262. |
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| Authors: | Chen Yunqing XING Xiaopeng Liu Peng Zeng Rong Gao Zhen Zhu Qihe |
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| Abstract: | Fe-Se binary cluster ions produced by direct laser ablation,were studied with a tandem time-of-flight masss pectrometer.It was found that FenSen+,FenSen-1+ in cluster cations,FenSen-FenSen+1-in cluster anions were main compositions of binary cluster ions.The photodissociation of cations FenSen+showed that FenSen+,FenSen-1+ were main photofragments,confirming their special stablity.The possible structures of Fe2Se2+ were calculated by Density Function Theory(B3LYP/LANL2DZ). |
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| Keywords: | Iron-selenium clusters Laserablation Ultraviolet photolysis |
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