Far-Ultraviolet Spectra of n-Alkanes and Branched Alkanes in the Liquid Phase Observed Using an Attenuated Total Reflection—Far Ultraviolet (ATR-FUV) Spectrometer
Far-Ultraviolet Spectra of n-Alkanes and Branched Alkanes in the Liquid Phase Observed Using an Attenuated Total Reflection—Far Ultraviolet (ATR-FUV) Spectrometer
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使用衰减全反射远紫外 (ATR-FUV) 光谱仪观察液相中正构烷烃和支链烷烃的远紫外光谱
DOI：
10.1366/10-06036
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发表时间：
2011
影响因子：
3.5
通讯作者：
Y. Ozaki
中科院分区：
文献类型：
--
作者：
S. Tachibana;Y. Morisawa;A. Ikehata;Harumi Sato;N. Higashi;Y. Ozaki
利用新研制的衰减全反射（ATR）-远紫外（FUV）光谱仪测量了正构烷烃（n = 5-14）和支链烷烃在液态下的远紫外（FUV）光谱，研究了FUV区的光谱-结构关系。正构烷烃在8.3 eV附近有一个宽带，在7.7 eV附近有一个弱肩。8.3 eV带显示出较低的能量偏移，随着烷基链长度的增加，强度显著增加。根据正构烷烃8.3eV带的峰值能量与第一电离能成正比的观察结果，我们将8.3eV带归属于由最高占据分子轨道（HOMO）到3 p和从HOMO-1到3s的跃迁引起的两个带的重叠。7.7eV的肩可能是由于从HOMO到3s的跃迁。的7.7 eV带的强度显着增加的顺序烷烃没有分支，叔，季碳原子。很可能从HOMO到3s的禁戒跃迁在从正构烷烃到具有季碳的支链烷烃的对称性大幅降低时变得允许。
Far-ultraviolet (FUV) spectra of n-alkanes (n = 5–14) and branched alkanes were measured in their liquid state by using a newly developed attenuated total reflection (ATR)-FUV spectrometer to investigate spectra–structure relationship in the FUV region. The n-alkanes show a broad band near 8.3 eV and a weak shoulder near 7.7 eV. The 8.3 eV band shows a lower energy shift with a significant intensity increase with the increase in the length of alkyl chain. We have assigned the 8.3 eV band to the overlap of two bands due to the transition from the highest occupied molecular orbital (HOMO) to 3p and that from the HOMO-1 to 3s based on the observation that the peak energy of the 8.3 eV band of the n-alkanes is proportional to the first ionization energy. The 7.7 eV shoulder may be due to the transition from HOMO to 3s. The intensity of the 7.7 eV band increases markedly in the order of alkanes without branch, with tertiary, and with quaternary carbon atoms. It is very likely that the forbidden transition from HOMO to 3s becomes allowed by the large decrease in symmetry upon going from the n-alkanes to the branched ones with the quaternary carbon, respectively.
远紫外吸收光谱作为聚合物薄膜高灵敏度定性和定量分析方法的潜力，第一部分：商业食品保鲜膜的分类
DOI：
--
发表时间：
2007
期刊：
Appl. Spectrosc. 61
影响因子：
--
作者：
M. Osa;H. Kanda;T. Yoshizaki;and H. Yamakawa;長 昌史,猿渡伸生,吉崎武尚,山川裕巳;山田 聖,河口知晃,小林邦彦,長 昌史,吉崎武尚;河口知晃,山田 聖,小林邦彦,長 昌史,吉崎武尚;Y.Kadohashi;中村 泰規;山田 哲也;丸田 悟朗;Hiroaki Benten;Naomi Kudo;Michihiro Ogawa;Michihiro Ogawa;Hideo Ohkita;Jiamo Guo;Hideo Ohkita;Kohji Masuda;Jiamo Guo;大北英生;郭嘉謨;本田哲士;大北英生;増田幸治;Hideo Ohkita;Kohji Masuda;Shunsuke Yamamoto;Hiroaki Benten;山本俊介;本田哲士;大北英生;小川倫弘;郭嘉謨;小川倫弘;増田幸治;大北英生;大北英生;池田芳史;山本俊介;郭嘉謨;Kyuyoung Heo;Christian Vogel;Tsuyoshi Furukawa;Harumi Sato
通讯作者：
Harumi Sato