2013 Fiscal Year Final Research Report
Structure and reactivity of temperature-controlled hydrogen-bonded cluster ions containing biological molecules
| Project/Area Number |
23750021
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical chemistry
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
FUJIHARA Akimasa 大阪府立大学, 理学(系)研究科(研究院), 助教 (10580334)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 光解離 / アミノ酸 / 光学異性体 / キラル認識 / ホモキラリティー / 水素結合クラスター |
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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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