CAS: Can the Ionic Character of 1st Row and the Covalency of 2nd and 3rd Row Transition Metals Converge?
CAS:第一行的离子特征和第二行和第三行过渡金属的共价性可以收敛吗?
基本信息
- 批准号:1953884
- 负责人:
- 金额:$ 76万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-08-01 至 2024-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
General Public Abstract:The Chemical Synthesis Program of the Chemistry Division of the National Science Foundation supports the research of Professor Peter T. Wolczanski of Cornell University. The project seeks to train candidates in the fields of metal-centered chemistry. Most commodity (bulk) and fine (pharmacological) chemicals are synthesized utilizing catalysts. These catalysts are typically transition metal compounds that accelerate the rates of reaction. Many of these catalysts use metals that are in low abundance, toxic, and expensive. This program is studying the synthesis of cheaper catalysts, but they must be modified by organic materials -- termed ligands -- in order to provide the chemical reactivity necessary to replace the current generation of catalysts used in industry. One general solution being explored is the investigation of ligands that promise to render the cheaper metals more versatile or adaptable. Another general approach is to synthesize metal systems that will underpin truly transformative processes: the preparation of compounds that are capable of multistep chemical reactions. A specific application targets the synthesis of complexes using propellar-shaped molecules that rupture to give what are called alkylidene ligands. Synthesis of alkylidene-metal compounds would have broad implications for the advanced manufacturing within the U.S. chemical industry. The Cornell group is also supports STEM education of 5th grade and high school students. The STEM efforts include lecture materials and hands-on training modules. These activities are helping to strengthen the workforce available to support the US chemical industry.Technical Abstract:The Chemical Synthesis Program of the Chemistry Division of the National Science Foundation supports the research program of Professor Peter T. Wolczanski of Cornell University. The project seeks to train PhD candidates in the fields of inorganic and organometallic chemistry. The research identifies several reactions that are potentially transformative in regards to commodity (bulk) and fine (pharmacological) chemicals production. Typical transition metals used in catalysis are in low abundance and costly, and the work proposes to supplant these species with inexpensive 1st and 2nd row species. Various ligand platforms that display redox non-innocence, including a reversible C-C bond formation, are employed to expand the redox capacity of several first-row metals. Other 3- coordinate chelates are also involved in H-transfer chemistry to further expand the scope of reactivity. Exploration of ionic vs. covalent bonding is fundamental to the work. Transfer HX and H2 additions, akin to transfer hydrogenations, and processes like hydroformylation, are targeted with early metal systems. Specific systems show potential for tandem CH activation in conjunction with olefin metathesis, leading to a net exchange of H2 for CH2, and one tridentate ligand has the potential for an alternate polymerization mechanism to Ziegler-Natta. Unique strained reagents are employed as alkylidene generators for numerous transition metals, as replacing expensive Ru-based olefin metathesis catalysts is an important target. The production of independent, versatile PhDs capable of adapting to a challenging and fluctuating academic or industrial market is a major objective, and the further development of Charge Distribution Via Reporters (CDVR) as a pedagogical alternative to formal oxidation states will continue to be tested. The Cornell group is also preparing a general 5th grade outreach program for publication based on experience, and is developing a related outreach program for high school students.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.
摘要:美国国家科学基金会化学部化学合成项目资助了康奈尔大学Peter T. Wolczanski教授的研究。该项目旨在培养以金属为中心的化学领域的候选人。大多数商品(散装)和精细(药理学)化学品都是利用催化剂合成的。这些催化剂通常是加速反应速率的过渡金属化合物。许多这些催化剂使用的金属丰度低、有毒且昂贵。这个项目正在研究更便宜的催化剂的合成,但它们必须由有机材料修饰——称为配体——以提供取代工业上使用的当前一代催化剂所必需的化学反应性。目前正在探索的一个通用解决方案是研究配体,以期使廉价的金属更具通用性或适应性。另一种一般的方法是合成金属系统,这将支持真正的变革过程:制备能够进行多步化学反应的化合物。一个特定的应用目标是合成配合物,使用螺旋桨形状的分子,破裂产生所谓的烷基二烯配体。烷基金属化合物的合成将对美国化学工业的先进制造产生广泛的影响。康奈尔小组还支持五年级和高中生的STEM教育。STEM项目包括讲座材料和实践培训模块。这些活动有助于加强可用于支持美国化学工业的劳动力。技术摘要:美国国家科学基金化学部化学合成项目资助康奈尔大学Peter T. Wolczanski教授的研究项目。该项目旨在培养无机和有机金属化学领域的博士候选人。该研究确定了几种在商品(散装)和精细(药理学)化学品生产方面具有潜在变革性的反应。催化中使用的典型过渡金属丰度低,价格昂贵,本工作建议用价格低廉的第一和第二行金属取代这些金属。各种显示氧化还原非清白的配体平台,包括可逆的C-C键形成,被用来扩大几种第一排金属的氧化还原能力。其他3-配位螯合物也参与了h转移化学,进一步扩大了反应性的范围。离子与共价键的探索是这项工作的基础。转移HX和H2的添加,类似于转移氢化,以及氢甲酰化等过程,是早期金属系统的目标。特定体系显示出与烯烃复分解相结合的连续CH活化的潜力,导致H2与CH2的净交换,并且一种三叉戟配体具有与Ziegler-Natta交替聚合机制的潜力。由于取代昂贵的钌基烯烃转化催化剂是一个重要的目标,因此采用独特的应变试剂作为许多过渡金属的烷基烯生成剂。培养能够适应具有挑战性和波动的学术或工业市场的独立、多才多艺的博士是一个主要目标,进一步发展电荷分布通过报告(CDVR)作为正式氧化态的教学替代方案将继续进行测试。康奈尔大学小组还根据经验准备了一份通用的五年级外展计划,并正在为高中生制定相关的外展计划。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(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
TEMPO coordination and reactivity in group 6; pseudo-pentagonal planar (η 2 -TEMPO) 2 CrX (X = Cl, TEMPO)
第 6 组的 TEMPO 协调性和反应性;
- DOI:10.1039/d2cc03838b
- 发表时间:2022
- 期刊:
- 影响因子:4.9
- 作者:Kayser, Ann K.;Wolczanski, Peter T.;Cundari, Thomas R.;Bollmeyer, Melissa M.;Lancaster, Kyle M.;MacMillan, Samantha N.
- 通讯作者:MacMillan, Samantha N.
Attempts at generating metathesis-active Fe(IV) and Co(IV) complexes via the reactions of (silox)2M(THF)2, [(silox)3M][Na(THF)2] (M = Fe, Co), and related species with propellanes and triphenylboron
尝试通过 (silox)2M(THF)2, [(silox)3M][Na(THF)2] (M=Fe, Co) 的反应生成复分解活性 Fe(IV) 和 Co(IV) 配合物
- DOI:10.1016/j.poly.2022.115656
- 发表时间:2022
- 期刊:
- 影响因子:2.6
- 作者:George, Gregory M.;Wolczanski, Peter T.;MacMillan, Samantha N.
- 通讯作者:MacMillan, Samantha N.
Propellanes as Drop-In ROMP Initiators
螺旋桨作为直接 ROMP 引发剂
- DOI:10.1021/acs.organomet.1c00398
- 发表时间:2021
- 期刊:
- 影响因子:2.8
- 作者:George, Gregory M.;Wolczanski, Peter T.;MacMillan, Samantha N.
- 通讯作者:MacMillan, Samantha N.
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Peter Wolczanski其他文献
Peter Wolczanski的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Peter Wolczanski', 18)}}的其他基金
CAS: Can 1st Row Transition Metals Express the Covalency Typifying 2nd and 3rd Row Transition Metals: Comparative Studies
CAS:第一行过渡金属能否表达代表第二行和第三行过渡金属的共价:比较研究
- 批准号:
2348673 - 财政年份:2024
- 资助金额:
$ 76万 - 项目类别:
Standard Grant
Manipulating Ligand Fields: Can 1st Row Transition Elements Behave as Their 2nd Row Congeners?
操纵配体场:第一行过渡元素可以表现得像第二行同系物一样吗?
- 批准号:
1664580 - 财政年份:2017
- 资助金额:
$ 76万 - 项目类别:
Continuing Grant
SusChEM: Redox Non-Innocence in N- and C-donor Chelate Complexes of 1st Row Transition Elements: Radical Character in Chemistry
SusChEM:第一行过渡元素的 N 和 C 供体螯合物中的氧化还原非纯真:化学中的自由基特征
- 批准号:
1402149 - 财政年份:2014
- 资助金额:
$ 76万 - 项目类别:
Continuing Grant
1st Row Transition Metal Synthesis and Reactivity Studies Toward Catalysis
第一行过渡金属合成和催化反应性研究
- 批准号:
1055505 - 财政年份:2011
- 资助金额:
$ 76万 - 项目类别:
Continuing Grant
Unusual Electronic States, and 1st Row Transition Metal Coordination Chemistry Toward Catalysis
不寻常的电子态和第一行过渡金属配位化学的催化作用
- 批准号:
0718030 - 财政年份:2007
- 资助金额:
$ 76万 - 项目类别:
Standard Grant
Small Molecule Activation and Coordination Chemistry
小分子活化与配位化学
- 批准号:
0415506 - 财政年份:2004
- 资助金额:
$ 76万 - 项目类别:
Continuing Grant
Small Molecule Activation and Coordination Chemistry
小分子活化与配位化学
- 批准号:
0212147 - 财政年份:2002
- 资助金额:
$ 76万 - 项目类别:
Standard Grant
Small Molecule Activation and Materials Synthesis
小分子活化与材料合成
- 批准号:
9816134 - 财政年份:1999
- 资助金额:
$ 76万 - 项目类别:
Continuing Grant
Small Molecule Activation and Materials Synthesis
小分子活化与材料合成
- 批准号:
9528914 - 财政年份:1996
- 资助金额:
$ 76万 - 项目类别:
Continuing Grant
Small Molecule Activation and Materials Synthesis
小分子活化与材料合成
- 批准号:
9218270 - 财政年份:1993
- 资助金额:
$ 76万 - 项目类别:
Continuing Grant
相似国自然基金
ionic Hubbard 模型中符号问题与量子相变的研究
- 批准号:
- 批准年份:2025
- 资助金额:0.0 万元
- 项目类别:省市级项目
LiNO3 - Ionic Liquids/H2O新型吸收式热泵工质对的物性与应用研究
- 批准号:51506005
- 批准年份:2015
- 资助金额:20.0 万元
- 项目类别:青年科学基金项目
相似海外基金
Accelerated discovery of ultra-fast ionic conductors with machine learning
通过机器学习加速超快离子导体的发现
- 批准号:
24K08582 - 财政年份:2024
- 资助金额:
$ 76万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Sustainable Responsive Hybrid Ionic Liquid-Polymer Gel Electrolyte Materials
可持续响应杂化离子液体-聚合物凝胶电解质材料
- 批准号:
EP/Y005309/1 - 财政年份:2024
- 资助金额:
$ 76万 - 项目类别:
Research Grant
Assembly of Novel Branched Ionic Polymers: Chirality Induction and 2D Heterostructures
新型支化离子聚合物的组装:手性感应和二维异质结构
- 批准号:
2404081 - 财政年份:2024
- 资助金额:
$ 76万 - 项目类别:
Standard Grant
Unlocking the potential of poly(ionic liquids) for electrochemical sensing
释放聚(离子液体)电化学传感的潜力
- 批准号:
DP240100014 - 财政年份:2024
- 资助金额:
$ 76万 - 项目类别:
Discovery Projects
Assessment of Ionic Tracer Reaction Rate Variability for Geothermal Energy Output Prediction
地热能输出预测的离子示踪剂反应速率变异性评估
- 批准号:
24K17640 - 财政年份:2024
- 资助金额:
$ 76万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
CAS-Climate: Understanding the fundamental redox chemistry and transport of chloroaluminate anions in ionic liquid electrolytes to develop earth-abundant aluminum ion battery
CAS-Climate:了解离子液体电解质中氯铝酸盐阴离子的基本氧化还原化学和传输,以开发地球上丰富的铝离子电池
- 批准号:
2427215 - 财政年份:2024
- 资助金额:
$ 76万 - 项目类别:
Standard Grant
Ionic liquids for subtractive and additive nanomanufacturing
用于减材和增材纳米制造的离子液体
- 批准号:
MR/Y034376/1 - 财政年份:2024
- 资助金额:
$ 76万 - 项目类别:
Fellowship
Revealing the Influence of Electrolyte Solvents and Ions on Electronic and Ionic Transport in Electrochemically Doped Conjugated Polymers
揭示电解质溶剂和离子对电化学掺杂共轭聚合物中电子和离子传输的影响
- 批准号:
2349830 - 财政年份:2024
- 资助金额:
$ 76万 - 项目类别:
Standard Grant
CAS: Electrochemical Ionic Hydrogenation: Promoting Carbonyl and Imine Reduction through Electrocatalysis
CAS:电化学离子氢化:通过电催化促进羰基和亚胺还原
- 批准号:
2247645 - 财政年份:2023
- 资助金额:
$ 76万 - 项目类别:
Standard Grant
Creation of high energetic ionic liquid propellants for small satellites based on reaction analysis
基于反应分析的小卫星高能离子液体推进剂的研制
- 批准号:
23K04239 - 财政年份:2023
- 资助金额:
$ 76万 - 项目类别:
Grant-in-Aid for Scientific Research (C)