Zhang Bailin, Mu Xiaolan, Wang Xiuyan, Lou Nanquan. The Femtosecond Laser Photoionization and ab initio Calculation Studies of Pyridine Clusters[J]. Chinese Journal of Chemical Physics , 2002, 15(3): 181-184. doi: 10.1088/1674-0068/15/3/181-184
Citation: Zhang Bailin, Mu Xiaolan, Wang Xiuyan, Lou Nanquan. The Femtosecond Laser Photoionization and ab initio Calculation Studies of Pyridine Clusters[J]. Chinese Journal of Chemical Physics , 2002, 15(3): 181-184. doi: 10.1088/1674-0068/15/3/181-184

The Femtosecond Laser Photoionization and ab initio Calculation Studies of Pyridine Clusters

doi: 10.1088/1674-0068/15/3/181-184
  • Received Date: 2002-01-08
  • The multiphoton ionization of pyridine clusters was studied by use of 400 nm femtosecond laser and TOF MS. A series of protonated and unprotonated pyridine cluster ions were detected,which indicates that the proton transfer can also occur in weak hydrogen bonded clusters . The analysis of both ion peak width and the ion intensity ' s change with the gas resource pressure suggests that the protonated cluster ions are coming from the fragment of larger cluster ions and the relevant unprotonated cluster ions are the direct ionization products of neutral clusters. ab initio calculation results indicate the pyridine clusters are formed by weak hydrogen bonds C-H.N and the dissociation of cluster ions prefers to produce protonated products.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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The Femtosecond Laser Photoionization and ab initio Calculation Studies of Pyridine Clusters

doi: 10.1088/1674-0068/15/3/181-184

Abstract: The multiphoton ionization of pyridine clusters was studied by use of 400 nm femtosecond laser and TOF MS. A series of protonated and unprotonated pyridine cluster ions were detected,which indicates that the proton transfer can also occur in weak hydrogen bonded clusters . The analysis of both ion peak width and the ion intensity ' s change with the gas resource pressure suggests that the protonated cluster ions are coming from the fragment of larger cluster ions and the relevant unprotonated cluster ions are the direct ionization products of neutral clusters. ab initio calculation results indicate the pyridine clusters are formed by weak hydrogen bonds C-H.N and the dissociation of cluster ions prefers to produce protonated products.

Zhang Bailin, Mu Xiaolan, Wang Xiuyan, Lou Nanquan. The Femtosecond Laser Photoionization and ab initio Calculation Studies of Pyridine Clusters[J]. Chinese Journal of Chemical Physics , 2002, 15(3): 181-184. doi: 10.1088/1674-0068/15/3/181-184
Citation: Zhang Bailin, Mu Xiaolan, Wang Xiuyan, Lou Nanquan. The Femtosecond Laser Photoionization and ab initio Calculation Studies of Pyridine Clusters[J]. Chinese Journal of Chemical Physics , 2002, 15(3): 181-184. doi: 10.1088/1674-0068/15/3/181-184

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