Electrons, excitons and hydrogen bonding: electron-promoted desorption from molecular ice surfaces.
Electrons, excitons and hydrogen bonding: electron-promoted desorption from molecular ice surfaces.
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电子、激子和氢键：电子促进的分子冰表面解吸。
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
M. McCoustra
中科院分区：
文献类型：
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作者：
D. Marchione;M. McCoustra
本文报道了苯（C_6H_6）在250 eV电子辐照下从甲醇（CH_3OH）和乙醚（CH_3CH_2 OCH_2CH_3）浓冰中的脱附，并与我们以前的C_6H_6从水（H_2 O）冰体系中脱附的研究结果进行了比较。C6 H6电子促进脱附（EPD）被认为是敏感的基板的化学性质，反映了本地化的O-原子与那些涉及的C-原子的激发的重要性;和氢键相互作用中的作用，在电子辐照期间传输非解离的电子激发到基板/C6 H6接口。
Desorption of benzene (C6H6) from thick methanol (CH3OH) and diethyl ether (CH3CH2OCH2CH3) ices during irradiation with 250 eV electrons is reported and compared with our previous work on C6H6 desorption from water (H2O) ice systems. C6H6 electron-promoted desorption (EPD) is seen to be sensitive to the chemical nature of the substrate reflecting both the importance of the excitations localised around the O-atom versus those involving the C-atom; and the role of hydrogen bonding interactions in transporting non-dissociative electronic excitation to the substrate/C6H6 interfaces during the electron irradiation.