Formation, structures, and properties of organic monomolecular, monatomic, and the piled-up layers

1.为了研究形成、几何和电子结构，以及单体组成反应分子或网络化碳原子沉积在固体表面上的平坦表面（如良好的piled layer），我们开发了一个低温度扫描隧道显微镜，它可以将其连接到我们的照片和透视电子光谱仪。我们在石墨（0001）表面上准备了阿卡迪因或类似沙丁的聚二乙酰（PD）和原子沙丁（AS）的单体上发现了以下的组合。在一个单体准备通过蒸发来在房间温度的基础上，分子形式较大（1000）有柱结构的域，它们是，可以被分解，当它们在低温度下提供较小的部件。当一个单体准备在150 K时，在220 K时，分子可以获得适合的单体聚合物流动性，并释放柱结构。当紫外线照射在220 K时，分子被转化为AS-I在LO ... More w temperature phase Management ing raised" PD chains orthogonal to alkyl chains with gauche conformation at f3-y methylenes。在高温阶段加热AS-I到房间温度yields A-II;在加利福尼亚州的烷基和PD链的界面。70度，保养在一个普通的平面上，冷静下来，AS-II已经转变回AS-I。在更远的地方，有两种类型的AS-II，具有不同的分子基础上的评论。在单个PD链的添加、阶段的转换和变形可以被STM方法所诱导。2.我们在Au（111）上携带红外反射吸收光谱，并发现全反式分子都是用一个柱结构平坦的，因为在一个蒸发沉积的单体上用图形来准备单体。转换到AS现在是研究下的.我们已经开发了一个程序来合成Penning电离元件的固体相位分子理论上用于预期的分子取向和排列。平面上和倾斜上的方向已被验证为图形上的单链分子和多层分子的长链分子，如合成和观察到的特性。Less（低）

1.To investigate the formation, geometrical and electronic structures, and the properties of monolayers comprising reactive molecules or networked carbon atoms laid flat on solid surfaces as well as the piled-up layers, we have developed a low-temperature scanning tunneling microscope which can be connected to our photo-and Penning electron spectrometer. We have obtained the following conclusions on the monolayers of alkadiyne or sashlike polydiacetylene (PD), atomic sash (AS) prepared on graphite (0001) surfaces. In a monomer monolayer prepared by evaporation onto a substrate held at room temperature, molecules form large (1000Å) domains with column structure although they are, liable to be desorbed, while they provide small ones at low temperature. When a monolayer prepared at 150 K is annealed at 220 K, molecules obtain suitable mobility for monolayer polymerization, loosing the column structure. when irradiated with UV light at 220 K, the molecules are transformed into AS-I in a lo … More w temperature phase having raised" PD chains orthogonal to alkyl chains with gauche conformation at f3-y methylenes. Heating the AS-I to room temperature yields A S-II in a high temperature phase ; the alkyl and PD chains intersect at ca. 70゜ and are maintained in a common plane.On cooling, the AS-II is transformed back to the AS-I. Furthermore, there are two kinds 'of AS-II with different molecule-substrate commensurations. In addition, the phase transition and deformation of a single PD chain can be induced by an STM tip.2.We carried out infrared reflection absorption spectroscopy for alkadiyne on Au(111) and found that all-trans molecules are laid flat with a column structure as in a vapor-deposited monolayer on graphite if the monolayer is prepared by adsorption from a solution. Transformation to AS is now under investgation.3.We have developed a program to synthesize the Penning ionization electron spectra of solid phase molecules theoretically for expected molecular orientation and arrangement. The flat-on and tilted-on orientation were verified for the mono-and multilayers of long chain molecules on graphite, respectively, by comparing the synthesized and observed spectra. Less