Chemical Formula | C8H6S2 |
Molar Mass | 166.268 g/mol |
Appearance | Colorless to light yellow solid |
Density | 1.22 g/cm³ |
Melting Point | 39 - 41 °C |
Boiling Point | 220 - 222 °C |
Solubility In Water | Insoluble |
Solubility In Organic Solvents | Soluble in common organic solvents like chloroform, dichloromethane |
Flash Point | 96 °C |
Refractive Index | 1.648 (estimate) |
Vapor Pressure | Low at room temperature |
What are the main uses of 2,2-bithiophene?
2% 2C2-bipyridine is mainly used in the synthesis of metal complexes and has important uses in many fields. In the field of chemical synthesis, it can be used as a ligand to form stable complexes with metal ions. This complex can be used as a catalyst to efficiently catalyze many organic reactions. For example, in some coupling reactions, the complexes formed by 2,2-bipyridine and transition metals can effectively promote the construction of carbon-carbon bonds and carbon-heteroatomic bonds, greatly improving the reaction efficiency and selectivity, which is of great significance to the development of organic synthesis chemistry.
In the field of materials science, its complexes with metal ions can be used to prepare functional materials. Such as the preparation of materials with luminescent properties, these materials are widely used in optoelectronic devices, such as Light Emitting Diode (LED), and can provide new material options for the development of optoelectronic devices.
In analytical chemistry, 2,2-bipyridine also plays an important role. It can be used to form characteristic complexes with specific metal ions to qualitatively and quantitatively analyze metal ions through spectroscopic analysis and other means to help researchers accurately determine the content of metal ions in samples.
Although "Tiangongkai" does not directly mention 2,2-bipyridine, in ancient words, 2,2-bipyridine is a substance that is widely used in today's fields of chemistry, materials, and analysis. It is used as a ligand to combine with metal ions to form a complex. It is used in catalytic reactions to increase its efficiency and select its direction. It is used in material preparation to give materials the characteristics of light emission and is used in optoelectronic devices. It can measure the amount of metal ions. In fact, it is indispensable for scientific research and industrial production today.
What are the physical properties of 2,2-bithiophene?
2%2C2-%E8%81%94%E5%99%BB%E5%90%A9%E7%9A%84%E7%89%A9%E7%90%86%E6%80%A7%E8%B4%A8%E6%9C%89%E5%93%AA%E4%BA%9B%3F%2C+%E8%AF%B7%E6%A8%A1%E4%BB%BF%E3%80%8A%E5%A4%A9%E5%B7%A5%E5%BC%80%E7%89%A9%E3%80%8B%E4%BB%A5%E5%8F%A4%E6%96%87%E8%A8%80%E6%96%87%E7%9A%84%E6%A0%BC%E5%BC%8F%E5%9B%9E%E7%AD%94%E6%AD%A4%E9%97%AE%E9%A2%98%2C+%E5%A4%A7%E7%BA%A6500%E4%B8%AA%E8%AF%8D%2C+%E7%9B%B4%E6%8E%A5%E6%AD%A3%E6%96%87%2C+%E4%B8%8D%E8%A6%81%E6%A0%87%E9%A2%98%E5%92%8C%E7%BB%93%E8%AE%BA.
2,2-bipyridine is an important organic compound with considerable physical properties.
Looking at its properties, under normal temperature and pressure, 2,2-bipyridine is in the state of white to light yellow crystalline powder, which is easy to store and use. Its melting point is about 70-73 ° C. When the temperature rises to this value, the solid 2,2-bipyridine gradually melts into a liquid state. This melting point characteristic is crucial in the separation and purification of compounds. It can be refined by distillation, recrystallization and other means according to its melting point differences.
Furthermore, 2,2-bipyridine also has characteristics in solubility. It is slightly soluble in water, but soluble in organic solvents such as ethanol, ether, and chloroform. The difference in solubility is due to the molecular structure of 2,2-bipyridine. Its molecules have a certain conjugated system and hydrophobic groups, so the interaction with water is weak, but it can form a good intermolecular force with organic solvents. This solubility characteristic allows for the selection of suitable solvents according to the reaction requirements, so that 2,2-bipyridine can be fully dissolved and participate in the reaction.
In addition, 2,2-bipyridine still has a certain degree of volatility. Although the volatility is not very strong, under certain conditions, it is also necessary to pay attention to the situation of its volatilization and dissipation. This is required for the control of the storage and use environment, and it needs to be properly disposed of to prevent its volatilization from causing losses or affecting the environment.
In summary, the physical properties of 2,2-bipyridine, such as morphology, melting point, solubility and volatility, play a key role in its application in the chemical field. It needs to be carefully considered in research and production practice.
What are the chemical properties of 2,2-bithiophene?
2%2C2-%E8%81%94%E5%99%BB%E5%90%A9%E7%9A%84%E5%8C%96%E5%AD%A6%E6%80%A7%E8%B4%A8%E5%A6%82%E4%BD%95%3F%2C+%E8%AF%B7%E6%A8%A1%E4%BB%BF%E3%80%8A%E5%A4%A9%E5%B7%A5%E5%BC%80%E7%89%A9%E3%80%8B%E4%BB%A5%E5%8F%A4%E6%96%87%E8%A8%80%E6%96%87%E7%9A%84%E6%A0%BC%E5%BC%8F%E5%9B%9E%E7%AD%94%E6%AD%A4%E9%97%AE%E9%A2%98%2C+%E5%A4%A7%E7%BA%A6500%E4%B8%AA%E8%AF%8D%2C+%E7%9B%B4%E6%8E%A5%E6%AD%A3%E6%96%87%2C+%E4%B8%8D%E8%A6%81%E6%A0%87%E9%A2%98%E5%92%8C%E7%BB%93%E8%AE%BA.
2,2-Bipyridine is also an organic compound. Its chemical properties are very interesting and are quite important to chemists.
Looking at its structure, containing dipyridyl groups connected by a single bond, this unique structure endows it with specific chemical properties. It has good coordination ability and shines brightly in the field of coordination chemistry. It can complex with many metal ions to form stable complexes. These complexes either play an important role in catalytic reactions or exhibit strange properties in the field of materials science.
In terms of their physical properties, at room temperature, they are mostly white to pale yellow crystals with a certain melting point and boiling point. And in organic solvents, it has a certain solubility, but it is slightly less soluble in water.
Furthermore, 2,2-bipyridine has certain electronic properties. Because the pyridine ring has a conjugated system, it can participate in the electron transfer process. In the fields of photochemistry and electrochemistry, it also has potential applications. It can be used as a photosensitizer to assist the progress of photochemical reactions; or it can be modified on the surface of the electrode to affect the electrochemical behavior of the electrode.
In short, 2,2-bipyridine has a variety of chemical properties due to its unique chemical structure. It has important applications in many scientific fields and is indeed an indispensable compound.
What are the synthesis methods of 2,2-bithiophene?
2% 2C2-bipyridine, also known as 2,2 '-azanaphthalene, is an important intermediate in organic synthesis. Its synthesis methods are rich and diverse, and each has its own strengths and weaknesses. It is widely used in many fields. The following is a detailed description of its synthesis method for you:
1. ** Chemical oxidative coupling method **: With pyridine as the starting material, under the action of a specific chemical oxidant, an oxidative coupling reaction occurs between pyridine molecules to generate 2% 2C2-bipyridine. The advantage of this method is that the raw material pyridine is widely sourced, easy to obtain, and the reaction conditions are relatively mild, which can be carried out under general laboratory conditions. However, the selectivity of this method is poor, and a variety of by-products are easily generated during the reaction process, which makes it difficult to separate and purify the product, and puts forward higher requirements for subsequent product quality control.
2. ** Metal Catalytic Coupling Method **: With the help of transition metal catalysts, such as palladium, nickel, etc., pyridine derivatives are coupled. Under the synergistic action of suitable reaction conditions and ligands, 2% 2C2-bipyridine can be synthesized efficiently and selectively. The significant advantage of this method is that it has high reactivity and selectivity, can accurately construct the structure of the target product, effectively reduce the occurrence of side reactions, and has high product purity. However, the high cost of metal catalysts, the recovery and repurpose of the catalyst after the reaction face challenges, which limits the application of this method in large-scale industrial production to a certain extent.
3. ** Electrochemical synthesis method **: In the electrochemical system, pyridine is used as the reactant to achieve the synthesis of 2% 2C2 -bipyridine through electrode reaction. This method has outstanding advantages such as green environmental protection and mild reaction conditions. It avoids the use of a large number of harmful chemical reagents in traditional chemical synthesis and is environmentally friendly. At the same time, through the precise regulation of reaction parameters such as electrode materials and electrolyte, the process and selectivity of the reaction can be better controlled. However, the current scale of electrochemical synthesis is relatively small, and industrial scale-up production still needs to overcome many technical challenges, such as the stability of electrodes and the design of large-scale reaction devices.
What is the price range of 2,2-bithiophene in the market?
In today's market, the price of 2,2-bipyridine varies according to various circumstances. However, the range of its price varies roughly depending on the quality, source, and supply and demand.
If it is an ordinary commercial product, its price may be between a few yuan and a few tens of yuan per gram. However, if its purity is extremely high and meets the fine standards required for scientific research, the price will be very expensive, or to a hundred yuan per gram, even more expensive.
In the market, the price of goods is always controlled by supply and demand. If there are many people who need it for a while, and there are few people who supply it, the price will increase; on the contrary, if the supply exceeds the demand, the price will drop. And its source is also related, and the price may be different between those produced locally and those imported from faraway countries. For those who are local, or because the cost of transshipment by boat and car is saved, the price is slightly easier; for those who come from afar, the price may increase due to the addition of freight and customs duties.
The difference in quality is also the main reason for pricing. Those with few impurities and high purity are suitable for rigorous experiments and manufacturing, and their price is higher than that of regular products. In order to know the exact price of 2,2-bipyridine, it is necessary to carefully examine its quality and observe its supply and demand status before obtaining a more accurate number.