基于Pyrene的共价有机框架 (PyCOFs):一个审查.
Yao Yang1, Shiqiong Peng2, Songhua Chen3
1School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China. jbliwit@163.com.
Nanoscale horizons
|October 2, 2024
概括
基于Pyrene的共价有机框架 (PyCOFs) 由于它们的大平面结构,显示了增强的特性. 本综述系统地总结了PyCOF的合成,应用和未来前景.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 化学 化学 化学
背景情况:
- 基于Pyrene的共价有机框架 (PyCOFs) 正因其独特的结构和电子特性而受到关注.
- 烯单元的平面结构增强了层间的π-π相互作用,改善了载体动力学和材料结晶性.
- 自2008年以来,已经开发出多种不同的PyCOF与各种链接,显示在吸附,传感,催化和储能方面的潜力.
研究的目的:
- 系统地审查基于pyrene的共价有机框架 (PyCOFs) 的合成策略和各种应用.
- 巩固PyCOF研究的最新进展,突出其在各种科学和技术领域的潜力.
- 讨论PyCOFs发展的未来前景和挑战.
主要方法:
- 基于烯的共价有机框架 (PyCOFs) 的文献综述.
- 对不同PyCOF链接的合成方法的分析.
- 在吸附,传感,催化和能量储存方面汇编报告的应用.
主要成果:
- 由于pyrene部分,PyCOF表现出增强的结晶性和光电性质.
- 已经证明了PyCOFs的广泛应用,包括吸附/分离,化学传感,催化和能量储存.
- 尽管有希望的结果,但对PyCOF的系统审查仍然很少.
结论:
- PyCOFs代表了一类具有可调节性质和广泛适用性的有前途的材料.
- 对新型合成路径和先进应用的进一步研究是有必要的.
- 应对当前的挑战将释放PyCOF的全部潜力,以实现未来的创新.
相关概念视频
Five-Membered Heterocyclic Aromatic Compounds: Overview
3.8K
Heterocyclic aromatic compounds are cyclic compounds that are aromatic and have one or more heteroatoms—atoms other than carbon, in the ring. Depending upon the number of atoms present in the ring, they can be either five or six-membered. Examples of five-membered heterocyclic aromatic compounds include pyrrole, furan, thiophene, and imidazole. Pyrrole consists of one nitrogen atom having one lone pair of electrons. Furan and thiophene have one oxygen and one sulfur heteroatom,...
3.8K
Crystal Field Theory - Tetrahedral and Square Planar Complexes
41.7K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
41.7K
Crystal Field Theory - Octahedral Complexes
26.2K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
26.2K
Network Covalent Solids
13.4K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
13.4K
Aromatic Hydrocarbon Cations: Structural Overview
2.8K
Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group...
Removing one hydrogen from the intervening CH2 group...
2.8K
Aromatic Hydrocarbon Anions: Structural Overview
2.7K
Neutral hydrocarbons like cyclopentadiene with an odd number of carbon atoms and one intervening CH2 group in the ring are not aromatic. Cyclopentadiene with 4 π electrons does not satisfy the 4n + 2 π electron rule. Additionally, the intervening CH2 group is sp3 hybridized and lacks a vacant p orbital, thereby interrupting the overlap of p orbitals in a continuous manner and preventing the delocalization of π electrons throughout the ring.
Due to the absence of continuous...
Due to the absence of continuous...
2.7K


