Ice surface processes: tunneling reactions and isotope fractionation
Ice surface processes: tunneling reactions and isotope fractionation
批准号:
21200048
负责人:
WATANABE Naoki
金额:
$19.8万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research on Innovative Areas (Research a proposed research project)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2011
中文摘要
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英文摘要
Ice surface reactions relevant to chemical evolution and deuterium fractionation were experimentally investigated. Activation energies for ice-surface diffusion of H and D atoms were determined. It was found that effective mass of reaction system is a control-factor of tunneling reactions. The reactivities of tunneling reactions related to deuterium fraction of formaldehyde can be well explained by the effective masses. A novel route of CO_2 formation on the ice surface was found.
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Direct evidence for ammonium ion formation in ice through ultraviolet-induced acid-base reaction of NH_3 with H_3O^+
紫外线诱导 NH_3 与 H_3O^ 酸碱反应在冰中形成铵离子的直接证据
DOI:
10.1088/0004-637x/713/2/906
发表时间:
2010
期刊:
Astrophys. J.
影响因子:
--
作者:
[E-S. Moon, H. Kang, Y. Oba, N. Watanabe, A. Kouchi]
通讯作者:
A. Kouchi
アモルファス氷表面における水素原子の拡散メカニズム
非晶冰表面氢原子扩散机制
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
[羽馬哲也, 渡部直樹, 香内晃, 木村勇気, V. Pirronello]
通讯作者:
V. Pirronello
Ammonia formation by the successive hydrogenation of N atom trapped in solid N_2 at below 30K
30K以下固体N_2中捕获的N原子连续氢化形成氨
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[H. Hidaka, M. Watanabe, A. Kouchi, N. Watanabe]
通讯作者:
N. Watanabe
Laboratory measurements of atomic hydrogen diffusion and the ortho-para conversion of nascent H_2 molecules on amorphous solid water
非晶固体水中原子氢扩散和新生H_2分子邻位转化的实验室测量
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[N.Watanabe, et al.]
通讯作者:
et al.
Translational and rotational energy measurements of vacuum-ultraviolet photodesorped water molecules in their vibrational ground state from amorphous solid water
非晶态固体水振动基态真空紫外光解吸水分子的平移和旋转能量测量
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[A.Yabushita, et al.]
通讯作者:
et al.
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