Tail-mercapto-phenyl Porphyrin Synthesis And Self-assembled Porphyrin Monolayer Preparation And Characterization

Porphyrin is a basic biological molecules, which is widespread in the nature. such as hemoglobin and chlorophyll, Vitamin B-12, The molecule not only participated in the many important biological reaction: oxygen transport, catalysis, plant photosynthesis. But also Porphyrin molecules has the ability to bond and release gas, it is an active center conducted. organisms reaction. Based on the structure of porphyrin unique and important role in the body. In recent years, porphyrin compounds in Bionics, medicine, materials, chemistry and other areas have been extensive research and applicationIn the last 20 years, Self-assembled monolayers (SAMs) is a new ultra-thin films of organic rapidly developmenting. Compared with other films, self-assembled monolayer ordered, fewer defects, lower energy; it is easy to study it using modern technology physical and chemical characterization; At the molecular level, the monolayer is designed through artificial surface structure to obtain the desired physical and chemical nature of the interface. So it is ideal model system to study surface and interfacial phenomena complex. As sulfur atoms formed easily Au-S on the surface through self-assembly technology. Synthesized sulfhydryl porphyrins, thus forming Porphyrin-Self-assembled monolayers. To study the electronic transfer of the different phases and the functions of the nano-porphyrin molecular devices1. Porphyrin compounds favored by the researchers because of their excellent optoelectronic properties and stability. In this part, mainly on the following: (1), Progress of the porphyrin compounds; (2), The progress of the self-assembled monolayers; (3), preparation and application of the mercapto-porphyrin self-assembled monolayer2. Synthesis of Hydroxy-porphyrin, different chain length and different number of the mercapto-porphyrin, and it were characterized by IR, UV, HNMR for preparating self-assembled monolayers porphyrin3. Porphyrin compounds with the optical, and magnetic properties, so it widely used in materials science and molecular electronics, the location of the porphyrin ring on the basement to determine their different properties, such as: catalytic, storage properties, we have synthesized and prepared self-assembled monolayers of the different number mercapto-porphyrin, using UV, EIS, XPS to study porphyrin ring position on the basement. To provide the necessary explanations building porphyrin molecular nanotechnology devices and further improving device performance.