Molecular orientation in thin films of bis(1,2,5-thiadiazolo)-p-quinobis(1,3-dithiole) on graphite studied by angle-resolved photoelectron spectroscopy.
Molecular orientation in thin films of bis(1,2,5-thiadiazolo)-p-quinobis(1,3-dithiole) on graphite studied by angle-resolved photoelectron spectroscopy.
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通过角分辨光电子能谱研究石墨上双(1,2,5-噻二唑)-p-醌二(1,3-二硫醇)薄膜的分子取向。
DOI：
10.1103/physrevb.48.2596
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Ueno
中科院分区：
文献类型：
--
作者：
Hasegawa;Tanaka;Yamashita;Inokuchi;Fujimoto;Kamiya;Seki;Ueno
用同步辐射角分辨紫外光电子能谱（UV-UV）研究了双（1，2，5-噻二唑）-对苯醌双（1，3-二硫杂环戊烯）在高取向热解石墨（HOPG）表面的取向薄膜。利用独立原子中心近似和修正的忽略双原子重叠分子轨道计算，分析了观测到的光电子强度与起飞角的关系。计算结果与实验结果吻合较好。通过比较这些结果，估计薄膜中的分子相对于HOPG表面的倾斜角β≤10 o
Angle-resolved ultraviolet photoelectron spectra using synchrotron radiation were measured for oriented thin films of bis(1,2,5-thiadiazolo)-p-quinobis(1,3-dithiole) on a cleaved highly oriented pyrolytic graphite (HOPG) surface. The observed takeoff angle dependence of the photoelectron intensity was analyzed by using the independent-atomic-center approximation and modified neglect of diatomic overlap molecular-orbital calculations. The calculated results agree well with the experimental ones. From the comparison between these results, the molecules in the thin film are estimated to lie flat with the inclination angle β≤10 o to the HOPG surface