| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2013: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Research Abstract |
In order to investigate structure and reactivity of temperature-controlled hydrogen-bonded cluster ions, a photodissociation spectrometer containing a spray ionization source, a temperature-variable 22-pole ion trap (8-400 K), and a reflectron time-of-flight mass spectrometer was developed. Enantiomer-selective ultraviolet photolysis of temperature-controlled protonated tryptophan on a chiral crown ether was examined as they relate to the origin of homochirality in biological molecules. The results show that enantiomer-selective photolysis on chiral substances might play important roles in inducing an excess of L-amino acids in interstellar molecular clouds.
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