Title of Research Project
Synchrotron Photoionization Study of the O(3P) + Alpha-Angelica Lactone (AAL) at 550 and 700K
Major
Chemistry
Research Abstract
The purpose of this research is to study the oxidation of alpha-angelica lactone (AAL) initiated by O(3P) using the synchrotron radiation from the Advanced Light Source (ALS) at the Lawrence Berkeley National Laboratory. The reaction species are investigated by multiplexed photoionization mass spectrometry. Mass-to-charge ratios, time traces, and photoionization spectra are collected for each primary product to help in their identification. Their adiabatic ionization energies are also obtained. The observed primary products at 550 K are ketene (m/z 42), acetaldehyde (m/z 44), methyl ketene (m/z 56), methyl vinyl ketone (m/z 70), methylglyoxal (m/z 72), dimethyl glyoxal (m/z 86), and 5-methyl-2,4 furandione (m/z 114). The same products with the exception of methyl ketene (m/z 56) and 5-methyl-2,4 furandione (m/z 114) are observed at 700 K.
Faculty Mentor/Advisor
Giovanni Meloni
Included in
Synchrotron Photoionization Study of the O(3P) + Alpha-Angelica Lactone (AAL) at 550 and 700K
The purpose of this research is to study the oxidation of alpha-angelica lactone (AAL) initiated by O(3P) using the synchrotron radiation from the Advanced Light Source (ALS) at the Lawrence Berkeley National Laboratory. The reaction species are investigated by multiplexed photoionization mass spectrometry. Mass-to-charge ratios, time traces, and photoionization spectra are collected for each primary product to help in their identification. Their adiabatic ionization energies are also obtained. The observed primary products at 550 K are ketene (m/z 42), acetaldehyde (m/z 44), methyl ketene (m/z 56), methyl vinyl ketone (m/z 70), methylglyoxal (m/z 72), dimethyl glyoxal (m/z 86), and 5-methyl-2,4 furandione (m/z 114). The same products with the exception of methyl ketene (m/z 56) and 5-methyl-2,4 furandione (m/z 114) are observed at 700 K.
