生化分子質譜與光譜學實驗室 Laboratory for Mass Spectrometric and Spectroscopic Studies of Biomolecules

Welcome to World of Atoms, Molecules, and Ions

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Molecular Spectroscopy - course information

Our laboratory is in Room 108 of the Institute of Atomic and Molecular Sciences (IAMS, Academia Sinica) building, located on the campus of National Taiwan University. Mailing address:  P. O. Box 23-166, 1 Section 4, Roosevelt Road, Taipei 10617, Taiwan, ROC, Tel: (886)2-23668236, Fax: (886)2-23620200, E-mail: wbt@sinica.edu.tw (Dr. Wen-Bih Tzeng).

• Press [Chinese] for the Chinese version of this page. [中文版]
• Press [MATI Movie] for demonstration of our MATI experiments.

Molecules are clustered by attractive force; People are grouped by sincere love.

A postdoctoral research fellowship is available. [details]

• Introduction
  We apply molecular beam time-of-flight mass spectrometry (TOFMS) in conjunction with (1) one-color resonant two-photon ionization (1C-R2PI), (2) two-color resonant two-photon ionization (2C-R2PI), and (3) mass-analyzed threshold ionization (MATI) spectroscopy to study the properties of molecules, radicals, complexes, and clusters in the electronically excited and cationic states. The  scientific information obtained from these experimental data includes the electronic transition energies, adiabatic ionization energies, structures, active molecular vibrations, intra-molecular and intermolecular vibrational frequencies (in the S₁ and cationic ground states), intermolecular binding energies (in the S₀, S₁ and cationic ground states), etc. Most of the recent experimental results are included in the ZEKE homepage. We also perform ab initio and density functional theory (DFT) calculations to provide possible interpretation for the experimental findings.
  

• Lab equipment
  High vacuum system, pulsed molecular beam, time-of-flight mass spectrometer, pulsed tunable UV laser, pulsed/delay function generator, gated photon counter, multichannel scaler/averager, transient digitizer/oscilloscope, computerized automation system, etc.
  

• Normal vibrational modes of benzene derivatives [Reference]

• Precise IE values determined by this group [Reference]

• Terms related to molecular spectroscopy [Reference]

• Terms related to quantum chemical calculations [Reference]

• Useful physical constants and conversion factors [Reference]

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Last Updated: 2008/09/25