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Hybridization of Atomic Orbitals II03:35

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sp3d and sp3d 2 Hybridization
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Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
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Electron Configurations

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Electron configurations and orbital diagrams can be determined by applying the Aufbau principle (each added electron occupies the subshell of lowest energy available), Pauli exclusion principle (no two electrons can have the same set of four quantum numbers), and Hund’s rule of maximum multiplicity (whenever possible, electrons retain unpaired spins in degenerate orbitals).
The relative energies of the subshells determine the order in which atomic orbitals are filled (1s, 2s, 2p, 3s, 3p,...
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An atom comprises protons and neutrons, which are contained inside the dense, central core called the nucleus, with electrons present around the nucleus. Taking into account the wave–particle duality of electrons and the uncertainty in position around the nucleus, quantum mechanics provides a more accurate model for the atomic structure. It describes atomic orbitals as the regions around the nucleus where electrons of discrete energy exist, characterized by four quantum...
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Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
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五-SiC 的电子结构.

Zhichao Liu1, Xiaobiao Liu2, Junru Wang1

  • 1School of Physics and Electronic Informations, Yantai University, Yantai 264005, China.

Materials (Basel, Switzerland)
|June 10, 2023
PubMed
概括

碳纳米带显示基于宽度和方向的可调节电子特性. 齐格扎格的g-SiC3纳米带对高容量的离子电池电极有前途.

科学领域:

  • 材料科学 材料科学 材料科学
  • 凝聚物质物理学 凝聚物质物理学
  • 纳米技术 纳米技术

背景情况:

  • 由于量子限制,一维纳米带在光电子和自旋电子中提供了独特的优势.
  • -碳纳米带代表了基于立体几何学的可调节性质的新型结构.

研究的目的:

  • 为了研究penta-SiC2和g-SiC3纳米带的电子结构特性.
  • 探索纳米丝带宽度和边缘条件对其电子和材料特性的影响.

主要方法:

  • 用密度函数理论 (DFT) 进行全面的电子结构计算.
  • 分析了不同宽度和边缘配置的碳纳米带 (penta-SiC2和g-SiC3).

主要成果:

  • 五SiC2和g-SiC3纳米带的电子特性严重依赖于宽度和方向.
  • 在一个五SiC2型中观察到反铁磁半导体行为,在其他类型中观察到中度带间隙,以及在扶手椅g-SiC3.3中观察到振荡带间隙.
  • 齐格扎格g-SiC3纳米带表现出极好的导电性,高理论容量 (1421 mA hg-1),低离子扩散障碍,表明适用于离子电池.

结论:

  • 该研究为Si-C纳米带在先进电子和光电子设备中的应用提供了理论基础.
关键词:
离子电池是一种离子电池.电子结构 电子结构第一个原则是第一原则.纳米带是一种纳米带.碳化合物的化合物.

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  • 齐格扎格g-SiC3纳米带显示出作为下一代离子电池的高性能电极材料的巨大潜力.