相关实验视频

Updated: Jun 13, 2025

High Resolution Physical Characterization of Single Metallic Nanoparticles

High Resolution Physical Characterization of Single Metallic Nanoparticles

Published on: June 28, 2019

控制聚合Pt/PtH/Rh/RhH合的银超原子纳米集群成16电子超分子

Tzu-Hao Chiu¹, Michael N Pillay¹, Ying-Yann Wu¹

¹Department of Chemistry, National Dong Hwa University Hualien 97401 Taiwan Republic of China chenwei@gms.ndhu.edu.tw.

Chemical science

|September 9, 2024

概括

研究人员通过组装8电子超原子集群与间歇化物,创造了新的16电子超分子. 这些新构造,包括第一个9组化超分子,为人工元素提供了一条途径.

科学领域:

纳米技术纳米技术
材料科学材料科学材料科学
超原子化学超原子化学

背景情况:

超原子纳米集群是先进材料的构建块.
人工元素可以通过组装离散的超原子来开发.
超原子集群中的间位化物是罕见的.

研究的目的:

为了合成和表征新的16电子超分子.
为了探索8电子超原子合成子的组装.
为了研究介质化物在超分子形成中的作用.

主要方法:

电子喷雾电离质谱仪 (ESI-MS) 是一种电子喷雾电离质谱仪.
单晶X射线衍射 (SCXRD) 是一种
核磁共振 (NMR) 是一种核磁共振技术.
紫外线对紫外线的光谱学.
电化学电化学电化学
计算方法计算方法

主要成果:

合成了两种新的16电子超分子,即 (RhH) 2Ag33[S2P(OPr) ]217 (1) 和 PtHPtAg32[S2P(OPr) ]217 (2).
集群1是第一组9-doped 16-电子超分子,具有两个 (RhH) @Ag12单位.
集群2包括Pt@Ag12和 (PtH) @Ag12单位,具有前所未有的间歇化物.
集群2在热处理后转化为Pt2Ag33[S2P(OPr) ]17 (3),表明化物可变性.

结论:

这项研究提出了一条使用含化物超原子构建块的16电子超分子的新途径.
这些发现表明,有可能创建具有独特电子特性的复杂纳米结构.
这项研究为设计基于超原子组装的新人工/伪元素打开了道路.

更多相关视频

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

A Simple Method for the Size Controlled Synthesis of Stable Oligomeric Clusters of Gold Nanoparticles under Ambient Conditions

A Simple Method for the Size Controlled Synthesis of Stable Oligomeric Clusters of Gold Nanoparticles under Ambient Conditions

Published on: February 5, 2016

相关概念视频

Colloidal precipitates

Colloidal precipitates

The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...

Valence Bond Theory

Valence Bond Theory

Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...