利用雷射誘發螢光法研究1-C10H9在仲氫間質之光光譜

Laser-induced fluorescence of 1-C10H9 in solid p-H2 matrix

黃上臻(Shang-Chen Huang)

指導教授 ： 李遠鵬

國立交通大學/理學院/應用化學系所/博士(2016年)

摘要

Protonated naphthalene (C10H9+) and its neutral counterparts (hydronaphthyl radicals, C10H9) are important intermediates in the reactions of aromatic compounds and in understanding the unidentified infrared (UIR) emission and the diffuse interstellar bands (DIBs) from interstellar media. To follow up this hypothesis, their infrared and electronic spectra are needed. Here, we performed a new system that can record IR absorption and the laser-induced fluorescence spectra of 1-C10H9 radical in solid para-hydrogen (p-H2). 1-C10H9 radicals were produced upon electron bombardment of a mixture of naphthalene (C10H8) and p-H2 during matrix deposition. The dispersed fluorescence and excitation spectra of 1-C10H9 were recorded and assigned. The assignments are according to the theoretical calculations with the TD-B3LYP/6-311++G(2d,2p) method. The results are compared with previous reports on 1-C10H9 in the gaseous phase and in a Ne matrix.

關鍵字

仲氫間質 ； 紅外吸收光譜 ； 雷射誘發螢光法

並列摘要

Protonated naphthalene (C10H9+) and its neutral counterparts (hydronaphthyl radicals, C10H9) are important intermediates in the reactions of aromatic compounds and in understanding the unidentified infrared (UIR) emission and the diffuse interstellar bands (DIBs) from interstellar media. To follow up this hypothesis, their infrared and electronic spectra are needed. Here, we performed a new system that can record IR absorption and the laser-induced fluorescence spectra of 1-C10H9 radical in solid para-hydrogen (p-H2). 1-C10H9 radicals were produced upon electron bombardment of a mixture of naphthalene (C10H8) and p-H2 during matrix deposition. The dispersed fluorescence and excitation spectra of 1-C10H9 were recorded and assigned. The assignments are according to the theoretical calculations with the TD-B3LYP/6-311++G(2d,2p) method. The results are compared with previous reports on 1-C10H9 in the gaseous phase and in a Ne matrix.

並列關鍵字

solid p-H2 matrix ； IR absorption ； laser-induced fluorescence

參考文獻

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