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What is the chemical structure of Tris (1-phenyl-isoquinoline) iridium (III)?
The book of "Tiangong Kaiwu", written by Yingxing in the Ming and Song Dynasties, is important in the world for containing the skills of hundreds of crafts and the origin of products. However, today I am inquiring about "Tris (1-phenyl-isoquinoline) iridium (III) ", which is a term for modern chemistry. It was not said at that time. If it is said in ancient Chinese, it is difficult to answer accurately. However, you can try to analyze its meaning to imitate ancient words.
"Tris (1-phenyl-isoquinoline) iridium (III) ", which is a coordination compound. "Tris", showing three times the amount, in chemical terms, refers to three identical ligands. " 1-Phenyl-isoquinoline ", 1-phenyl-isoquinoline also, is an organic compound with a benzene ring and an isoquinoline ring, and can be used as a ligand to coordinate with the central metal ion." iridium (III) ", iridium (III) also, iridium is a metal element, (III) shows its oxidation state is + 3.
In ancient words, this compound may be cloud: a complex composed of 1-phenyl-isoquinoline of the trinity as a ligand and iridium ion in the + 3 oxidation state. In this complex, the iridium ion occupies the center, just like Beichen occupies its place and is shared by all stars. Three 1-phenylisoquinoline ligands surround it and are connected by coordination bonds, each in its place, forming a stable structure. Although there is no such detailed chemical structure in ancient times, it is deduced from the meaning, which is roughly the same, hoping to meet the meaning of the question.
What are the main application fields of Tris (1-phenyl-isoquinoline) iridium (III)?
Tris (1-phenyl-isoquinoline) iridium (III) is an important class of organometallic complexes. Its main application fields are wide and wide.
First, in the field of organic electroluminescent devices (OLEDs), this compound plays a key role. OLEDs are increasingly important in display technology due to their self-luminescence, wide viewing angle and fast response speed. Tris (1-phenyl-isoquinoline) iridium (III) is often used as a phosphorescent material, which can greatly improve the luminous efficiency of OLED devices. Because it can effectively utilize both singlet and triplet excitons to achieve the purpose of efficient luminescence, making the display screen clearer and more colorful.
Second, in the field of chemical sensing, it also has extraordinary performance. Due to its unique optical and electronic properties, it can respond to changes in specific chemical substances or physical parameters. For example, it can selectively identify and detect certain ions or small molecules. By changing their luminescence properties, it can sensitively sense the presence and concentration changes of targets in the environment, which has great application potential in environmental monitoring and biological analysis.
Third, in the field of photocatalysis, Tris (1-phenyl-isoquinoline) iridium (III) has also emerged. It can be used as a photocatalyst to initiate many chemical reactions under light conditions. By absorbing photons, highly active excited states are generated, promoting various oxidation-reduction reactions, carbon-carbon bond formation reactions, etc., providing a novel and efficient way for organic synthesis.
What is the synthesis method of Tris (1-phenyl-isoquinoline) iridium (III)?
The method of preparing tris (1-phenylisoquinoline) iridium (III) is an important task in chemical synthesis. The method is as follows:
First, raw materials are required. 1-Phenylisoquinoline and iridium compounds are both key materials. 1-Phenylisoquinoline can be prepared from the corresponding aryl halide and isoquinoline through a suitable coupling reaction. The iridium compound, iridium (III) chloride hydrate, is often selected because of its good stability and easy availability.
times, the coordination reaction is performed. The hydrate of 1-phenylisoquinoline and iridium (III) chloride is placed in a suitable organic solvent, such as dichloromethane, N, N-dimethylformamide, etc. Under the protection of inert gas atmosphere, such as nitrogen or argon, heated and stirred at a suitable temperature. During this process, the nitrogen and carbon coordination atoms of 1-phenylisoquinoline coordinate with the central ion of iridium (III) to gradually form a complex.
Furthermore, the reaction conditions are regulated. Temperature, reaction time and molar ratio of the reactants all have a significant impact on the yield and purity of the product. Generally, the reaction temperature should be controlled between 60-120 ° C, and the reaction time is about 12-24 hours. The molar ratio of the reactants, 1-phenylisoquinoline and iridium chloride (III) hydrate should be about 3:1 to ensure that the coordination check point of iridium is fully occupied. After
, the product is separated and purified. After the reaction, the organic solvent is removed by reduced pressure distillation to obtain the crude product. Following column chromatography, silica gel is selected as the stationary phase, and the mixture of n-hexane and ethyl acetate is used as the mobile phase to separate and purify the crude product. The fractions containing the target product are collected and dried in vacuum to obtain pure tris (1-phenylisoquinoline) iridium (III).
What are the physical properties of Tris (1-phenyl-isoquinoline) iridium (III)?
The author of "Tiangong Kaiwu" was written by Yingxing in the Ming and Song Dynasties. It contains various technical products, but "Tris (1-phenyl-isoquinoline) iridium (III) " is not involved in it. Try to describe its physical properties in ancient Chinese.
"Tris (1-phenyl-isoquinoline) iridium (III) " is also a metal-organic compound. Its color is often bright and shiny, just like the light of the stars. Looking at its texture, under room temperature, it is mostly solid, solid and has a certain toughness, and cannot be easily broken. < Br >
In terms of its solubility, it is soluble in many organic solvents, such as dichloromethane and chloroform, and can be fused with solvents to form a uniform state. This property makes it useful in the field of chemical synthesis and material preparation.
When it comes to thermal stability, it can withstand high temperatures without rapid change. When heated moderately, the structure is still stable and does not decompose easily. However, if the temperature exceeds its tolerance limit, the chemical bond breaks, the state of matter may change, or it may melt gas and escape, or it may become other substances.
Its photophysical properties are particularly specific. When excited by light, it can emit bright light, and the light color changes according to the fine-tuning of the environment and structure, either showing the clarity of blue light, the softness of green light, or the warmth of yellow light. This luminous property makes it a key material in the manufacture of devices such as organic Light Emitting Diodes, which can give the device a brilliant luster and increase its efficiency.
What are the reaction properties of Tris (1-phenyl-isoquinoline) iridium (III) with other compounds?
Tris (1-phenyl-isoquinoline) iridium (III) is a class of metal-organic complexes, which are widely used in organic Light Emitting Diode (OLED) and other fields. Compared with other compounds, this compound has unique reaction characteristics.
First, it has high-efficiency phosphorescent emission characteristics. Due to the heavy atom effect of iridium (III) ions, the intersystem channeling process can be promoted, and the singlet and triplet excitons can be efficiently converted, and then the triplet excitons can participate in the luminescence process and improve the luminous efficiency. Compared with many organic compounds with only singlet states, it can utilize singlet and triplet excitons, and the theoretical quantum efficiency can be nearly 100%.
Second, the photophysical and photochemical properties of the compound can be adjusted by changing the ligand structure. Different substituents can be introduced into the benzene ring and the isoquinoline ring of 1-phenyl-isoquinoline ligands, which affect the electron cloud distribution, energy level structure and molecular geometry of the complex through electronic and spatial effects, thereby regulating its absorption and emission spectra. For example, the introduction of a power supply group can increase the HOMO energy level of the complex and red shift the emission spectrum; the introduction of an electron-absorbing group can reduce the LUMO energy level and blue shift the emission spectrum.
Third, its thermal and chemical stability is quite high. The central iridium (III) ion forms a strong coordination bond with the ligand, establishing a stable octahedral structure, endowing the complex with good thermal stability and resisting decomposition caused by high temperature. At the same time, the structure has certain resistance to common chemical reagents, and can maintain the structural integrity under a variety of chemical reaction conditions, providing protection for its application in different environments and reaction systems.
Fourth, it exhibits unique behavior in redox reactions. Iridium (III) ions are in the + 3 oxidation state and can achieve oxidation state transition through the gain and loss of electrons. Under certain conditions, it can be oxidized to a higher oxidation state or reduced to a lower oxidation state. This redox property allows it to participate in catalytic reactions or as an electron transport material to promote the reaction process by transferring electrons.
