Probing the Electronic Structure and Chemical Bonding of Cryogenically-Cooled Boron and Metal-Boride Nanoclusters
探究低温冷却硼和金属硼化物纳米团簇的电子结构和化学键合
基本信息
- 批准号:2403841
- 负责人:
- 金额:$ 65万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2024
- 资助国家:美国
- 起止时间:2024-03-01 至 2028-02-29
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
With support from the Chemical Structure, Dynamics, and Mechanisms A (CSDM-A) program in the Division of Chemistry, Professor Lai-Sheng Wang and his research group at Brown University will investigate size-selected boron and metal-boride nanoclusters using high-resolution photoelectron imaging and photoelectron spectroscopy. Boron has only three valence electrons compared to four in carbon and is thus considered to be electron deficient. The electron deficiency of boron results in complicated structures and unique chemical bonds in boron-containing molecules, which are challenging to investigate. Professor Wang and his students will generate boron and metal-boride nanoclusters using a home-built laser-vaporization cluster source and utilize photoelectron spectroscopy and imaging in conjunction with theoretical calculations to provide insights into their stabilities, structures, and chemical bonding. Their studies could lead to the discovery of novel boron- and boride-based nanostructures, as well as provide fundamental knowledge about boron chemistry and chemical bonding. The research in this project will be integrated into the teaching of physical chemistry, and will provide training opportunities for undergraduate and graduate students in the design and construction of advanced experimental instrumentation and computational chemistry. This project focuses on the structure and bonding of boron clusters to provide insight into the nature of the metal-boron bonds and structural evolution of large boron clusters to lay the foundation for new boron-based nanomaterials. To achieve these research goals, Professor Lai-Sheng Wang and his students have built two different types of apparatus for photoelectron spectroscopy. One apparatus involves a magnetic-bottle photoelectron analyzer and is aimed at providing photoelectron spectra with a wide range of photon energies. Well-resolved photoelectron spectra provide electronic fingerprints, which are crucial for comparison with theoretical calculations to elucidate the structures and bonding of size-selected boron nanoclusters. The second apparatus involves high-resolution photoelectron imaging, which is aimed at obtaining vibrational information. A cryogenically cooled ion trap is being developed to create cold boron clusters from the laser-vaporization source; this is needed to obtain vibrationally resolved photoelectron spectra for boron and metal-boride clusters. The broader impact of this project includes the discovery of novel boron-based nanomaterials with potential as new platforms for nanotechnology.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
在化学系化学结构、动力学和机理A (CSDM-A)项目的支持下,布朗大学王来生教授和他的研究小组将利用高分辨率光电子成像和光电子能谱研究尺寸选择的硼和金属硼化物纳米团簇。硼只有3个价电子,而碳有4个,因此硼被认为是缺电子的。硼的电子缺乏导致含硼分子结构复杂,化学键独特,这是研究硼分子的一个挑战。王教授和他的学生将使用自制的激光汽化团簇源生成硼和金属硼化物纳米团簇,并利用光电子能谱和成像结合理论计算来深入了解它们的稳定性、结构和化学键。他们的研究可能会导致新的硼基和硼基纳米结构的发现,并提供有关硼化学和化学键的基础知识。本课题的研究将融入物理化学的教学中,为本科生和研究生提供先进实验仪器设计与建设、计算化学等方面的训练机会。本项目重点研究硼团簇的结构和键合,为深入了解金属-硼键的性质和大型硼团簇的结构演变提供依据,为新型硼基纳米材料的研究奠定基础。为了实现这些研究目标,王来生教授和他的学生们建造了两种不同类型的光电子能谱仪。一种装置包括一个磁瓶光电子分析仪,旨在提供具有大范围光子能量的光电子能谱。分辨率高的光电子能谱提供了电子指纹,这对于与理论计算进行比较来阐明尺寸选择的硼纳米团簇的结构和键合至关重要。第二个装置涉及高分辨率光电子成像,其目的是获得振动信息。开发了一种低温冷却离子阱,从激光汽化源产生冷硼团簇;这是获得硼和金属硼化物团簇的振动分辨光电子能谱所必需的。这个项目更广泛的影响包括发现新的硼基纳米材料,这些材料有可能成为纳米技术的新平台。该奖项反映了美国国家科学基金会的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Lai-Sheng Wang其他文献
Electronic structure and fragmentation properties of [Fe<sub>4</sub>S<sub>4</sub>(SEt)<sub>4−<em>x</em></sub>(SSEt)<sub><em>x</em></sub>]<sup>2−</sup>
- DOI:
10.1016/j.ijms.2007.03.001 - 发表时间:
2007-06-01 - 期刊:
- 影响因子:
- 作者:
You-Jun Fu;Julia Laskin;Lai-Sheng Wang - 通讯作者:
Lai-Sheng Wang
Bridging 2-BO in B2(BO)3- and B3(BO)3- Clusters: Boronyl Analogs of Boranes
桥接
- DOI:
- 发表时间:
- 期刊:
- 影响因子:2.9
- 作者:
Si-Dian Li;Jin-Chang Guo;Hua-Jin Zhai;Lai-Sheng Wang - 通讯作者:
Lai-Sheng Wang
AuBsub8/subsup−/sup: an Au–borozene complex
- DOI:
10.1039/d1cc07303f - 发表时间:
2022-01-01 - 期刊:
- 影响因子:4.200
- 作者:
Wei-Jia Chen;Yang-Yang Zhang;Wan-Lu Li;Hyun Wook Choi;Jun Li;Lai-Sheng Wang - 通讯作者:
Lai-Sheng Wang
Facile synthesis of the dodecahydridododecaborate (B12H122−) from borane Lewis base adducts
- DOI:
10.1007/s11426-024-2334-0 - 发表时间:
2025-01-02 - 期刊:
- 影响因子:9.700
- 作者:
Yi Jing;Xin-Ran Liu;Xinghua Wang;Hui Han;Sha-Sha Liang;Xi-Meng Chen;Donghui Wei;Lai-Sheng Wang;Xuenian Chen - 通讯作者:
Xuenian Chen
On the electronic structure of mono-rhenium oxide clusters: and ReOn (n = 3, 4)
一铼氧化物团簇的电子结构:和 ReOn (n = 3, 4)
- DOI:
- 发表时间:
2011 - 期刊:
- 影响因子:2.8
- 作者:
Wen-Jie Chen;Hua-Jin Zhai;Xin Huang;Lai-Sheng Wang - 通讯作者:
Lai-Sheng Wang
Lai-Sheng Wang的其他文献
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{{ truncateString('Lai-Sheng Wang', 18)}}的其他基金
Probing the Structures and Chemical Bonding of Size-Selected Boron and Metal-Boride Nanoclusters
探索尺寸选择的硼和金属硼化物纳米团簇的结构和化学键合
- 批准号:
2053541 - 财政年份:2021
- 资助金额:
$ 65万 - 项目类别:
Standard Grant
Investigation of Boron and Boride Nanoclusters: Laying the Foundation for New Boron Nanostructures and Nanomaterials
硼和硼化物纳米团簇的研究:为新型硼纳米结构和纳米材料奠定基础
- 批准号:
1763380 - 财政年份:2018
- 资助金额:
$ 65万 - 项目类别:
Continuing Grant
Exploratory Syntheses of Borometallic Molecular Wheels and Borospherenes
硼金属分子轮和硼球烯的探索性合成
- 批准号:
1655066 - 财政年份:2016
- 资助金额:
$ 65万 - 项目类别:
Standard Grant
Investigation of Boron and Boride Nanoclusters: Laying the Foundation for New Boron Nanostructures
硼和硼化物纳米团簇的研究:为新型硼纳米结构奠定基础
- 批准号:
1263745 - 财政年份:2013
- 资助金额:
$ 65万 - 项目类别:
Continuing Grant
Probing the Electronic Structures of Transition Metal Clusters and Solution Anions Using Photoelectron Spectroscopy and Photoelectron Imaging
利用光电子能谱和光电子成像探测过渡金属簇和溶液阴离子的电子结构
- 批准号:
1049717 - 财政年份:2011
- 资助金额:
$ 65万 - 项目类别:
Continuing Grant
Probing the Electronic and Atomic Structures of Metal Clusters and Solution-Phase Species in the Gas Phase
探测气相中金属簇和溶液相物质的电子和原子结构
- 批准号:
1036387 - 财政年份:2010
- 资助金额:
$ 65万 - 项目类别:
Continuing Grant
Probing the Electronic and Atomic Structures of Metal Clusters and Solution-Phase Species in the Gas Phase
探测气相中金属簇和溶液相物质的电子和原子结构
- 批准号:
0749496 - 财政年份:2008
- 资助金额:
$ 65万 - 项目类别:
Continuing Grant
From Gas Phase Clusters to Nanomaterials
从气相团簇到纳米材料
- 批准号:
0503383 - 财政年份:2005
- 资助金额:
$ 65万 - 项目类别:
Continuing Grant
Probing the Electronic Structures of Atomic Clusters and Solution Phase Species in the Gas Phase
探测气相中原子团簇和溶液相物质的电子结构
- 批准号:
0349426 - 财政年份:2004
- 资助金额:
$ 65万 - 项目类别:
Continuing Grant
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Tailoring and probing electronic/magnetic structure of engineered magnetic topological insulators
工程磁拓扑绝缘体的电子/磁结构的定制和探测
- 批准号:
2219610 - 财政年份:2022
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Probing local electronic structure in 2D heterostructures
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- 批准号:
2108771 - 财政年份:2018
- 资助金额:
$ 65万 - 项目类别:
Studentship
Collaborative Research: Probing and Controlling Binding Structure and Electron Transport in Molecular Electronic Devices - A Coordinated Computational and Experimental Study
合作研究:探测和控制分子电子器件中的结合结构和电子传输 - 协调计算和实验研究
- 批准号:
1609902 - 财政年份:2016
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$ 65万 - 项目类别:
Standard Grant
Collaborative Research: Probing and Controlling Binding Structure and Electron Transport in Molecular Electronic Devices--A Coordinated Computational and Experimental Study
合作研究:探测和控制分子电子器件中的结合结构和电子传输——协调计算和实验研究
- 批准号:
1609788 - 财政年份:2016
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CAREER: Surface-Enhanced Nonlinear Spectroscopy: Mapping Electronic Excited States, Probing Surface Adsorbate Structure, and Ultrasensitive Detection
职业:表面增强非线性光谱:绘制电子激发态、探测表面吸附结构和超灵敏检测
- 批准号:
1512886 - 财政年份:2014
- 资助金额:
$ 65万 - 项目类别:
Continuing Grant
CAREER: Surface-Enhanced Nonlinear Spectroscopy: Mapping Electronic Excited States, Probing Surface Adsorbate Structure, and Ultrasensitive Detection
职业:表面增强非线性光谱:绘制电子激发态、探测表面吸附结构和超灵敏检测
- 批准号:
1150687 - 财政年份:2012
- 资助金额:
$ 65万 - 项目类别:
Continuing Grant
Probing the Electronic Structure of Fe-S Clusters
探究 Fe-S 团簇的电子结构
- 批准号:
6619770 - 财政年份:2001
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Probing the Electronic Structure of Fe-S Clusters
探究 Fe-S 团簇的电子结构
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Probing the Electronic Structure of Fe-S Clusters
探究 Fe-S 团簇的电子结构
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6781801 - 财政年份:2001
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Probing the Electronic Structure of Fe-S Clusters
探究 Fe-S 团簇的电子结构
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6526167 - 财政年份:2001
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