Studies for the reaction rates of radicals in interstellar space and planetary atmosphere
| Project/Area Number |
15550008
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Yokohama National University |
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Principal Investigator |
SEKI Kanekazu Yokohama National University, Graduate School of Engineering, Associate Prcfesson, 大学院工学研究院, 助教授 (30250103)
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| Project Period (FY) |
2003 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2005: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2004: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2003: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | radical reaction / photochemistry / C2H radical / interstellar space / planetary atmosphere / LIF / acetylene / solid state reaction / 反応速度 / 光反応 / C_2Hラジカル |
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| Research Abstract |
The reaction rates of C_2H radicals have been measured using the LIF method. The C_2H plays an important role for the photochemical process in interstellar space or planetary atmosphere. The measured LIF signal is based on B state of C_2H, and four spectra series was observed. These spectra can be assigned toΣ-Σ,Π-Π,Δ-Δ,Ф-Ф transition, respectively. The detailed analysis of a spectrum shows that the properties of the electronic state of C_2H and reaction rate with acetylene have be determined. On the other hand, photochemical process of C_2H radical in solid phase at low temperature has been investigated using the argon matrix method at 10K. Diacetylene formation was observed in the reaction C_2H with acetylene. The quantum yield is over one. This means that there are nano explosion occurs in the low temperature solid phase. It has a big meaning in the reaction mechanism of the unsaturated hydrocarbon expected to be radical in interstellar space or the planetary atmosphere.
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Report
(4 results)
Research Products
(3 results)
