Mass Analyzed Threshold Ionization-Photoion with VUV laser Pulsed Field Ionization and Guided Ion Beam Method Applied to the Study of State-Selected Ion-Molecule Reaction Dynamics.

摘要

This dissertation covers four major chapters. In Chapter 1, a general introduction is given on the research methods of state-selected ion-molecule reaction dynamics including VUV generation, pulse field ionization, guided ion beam method, as well as mass analyzed threshold ionization (MATI). Chapter 2 presents the development of instruments construction for the study of state-selected ion-molecule reaction dynamics. Chapter 3 represents a VUV pulsed field ionization-photoelectron spectroscopic study of pyrazine (C6H4N 2). The ionization energy was determined to be 74,906.6 +/- 2.0 cm-1 (9.28728 +/- 0.00025 eV). The PFI-PE spectrum of pyrazine exhibits well-resolved vibrational bands, which have been well characterized. In Chapter 4 the first rotationally resolved mass-analyzed-threshold (MATI) photoion spectra of N2+(X2 Sigma +g, v+=0, 1) bands of nitrogen is reported with high resolution using the pulsed field ionization method. The rovibrational spectrum of N2+(X2 Sigma +g, v+=0, 1) is analyzed. Absolute rovibrationally selected total cross sections for the charge transfer reaction N2+(X2 Sigma+ g, v+=0, 1) + Ar are measured.