N-Heterocyclic Carbene-Functionalized Gold Nanoclusters
N-杂环卡宾功能化金纳米团簇
基本信息
- 批准号:19F19741
- 负责人:
- 金额:$ 0.77万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for JSPS Fellows
- 财政年份:2019
- 资助国家:日本
- 起止时间:2019-07-24 至 2020-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
More recently, we have been working to expand the use of NHCs to the stabilization of gold nanoclusters. Following our initial report on the synthesis and isolation of [Au13(NHC)9Cl3]Cl2 clusters, we improved the isolation and purification procedures further in order to apply these clusters as catalysts in various reactions.And structures of clusters was confirmed by X-ray crystallographic analysis. After developing optimized procedures for the synthesis and purification of these clusters, we sought to test their activity in oxidation catalysis, along with our previously isolated NHC-phosphine ligated clusters. Towards this end we chose two model reactions, benzyl alcohol oxidation and photocatalytic benzyl amine oxidation as test cases. Benzyl alcohol oxidation using mixed phosphine/NHC Au13 clusters proceeds with moderate turnover frequency (average 7 h-1), producing benzaldehyde with high selectivity (average 95%). Due to the low stability of these clusters under catalytic conditions, we are currently investigating increasing their stability via solid supports and/or ligand modifications. We plan to also investigate other novel catalytic reactions using our family of NHC-functionalized gold nanoclusters in future research.
最近,我们一直在努力将NHC的使用扩展到金纳米簇的稳定化中。根据我们关于[AU13(NHC)9CL3] CL2簇的合成和分离的初步报告,我们进一步改进了分离和纯化程序,以便将这些簇作为各种反应中的催化剂应用。在开发了这些簇的合成和纯化的优化程序之后,我们试图测试它们在氧化催化中的活性,以及我们先前分离的NHC-膦结合簇。为此,我们选择了两种模型反应:苄醇氧化和光催化苄基胺氧化作为测试用例。使用混合磷酸/NHC AU13簇的苄醇氧化以中等的周转频率(平均7 H-1)进行,从而产生高选择性的苯甲醛(平均95%)。由于这些簇在催化条件下的稳定性较低,我们目前正在研究通过固体支撑和/或配体修饰提高其稳定性。我们计划在未来的研究中使用我们的NHC官能化金纳米簇的家族来研究其他新型催化反应。
项目成果
期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
N-heterocyclic carbene-functionalized magic-number gold nanoclusters
- DOI:10.1038/s41557-019-0246-5
- 发表时间:2019-05-01
- 期刊:
- 影响因子:21.8
- 作者:Narouz, Mina R.;Osten, Kimberly M.;Crudden, Cathleen M.
- 通讯作者:Crudden, Cathleen M.
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CRUDDEN Cathleen其他文献
CRUDDEN Cathleen的其他文献
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{{ truncateString('CRUDDEN Cathleen', 18)}}的其他基金
Beyond thiols, beyond gold: Novel NHC-stabilized nanoclusters in catalysis
超越硫醇,超越金:催化中新型 NHC 稳定纳米团簇
- 批准号:
23K21120 - 财政年份:2024
- 资助金额:
$ 0.77万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Beyond thiols, beyond gold: Novel NHC-stabilized nanoclusters in catalysis
超越硫醇,超越金:催化中新型 NHC 稳定纳米团簇
- 批准号:
21H01949 - 财政年份:2021
- 资助金额:
$ 0.77万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Application of NHC-modified Gold Nanoclusters in Photoredox Catalysis
NHC修饰金纳米团簇在光氧化还原催化中的应用
- 批准号:
20F20329 - 财政年份:2020
- 资助金额:
$ 0.77万 - 项目类别:
Grant-in-Aid for JSPS Fellows
Dual Photo/CrossCoupling Catalysis with Organosulfone: Assembly of Chiral Multi-Substituted Methanes
有机砜的双光/交叉偶联催化:手性多取代甲烷的组装
- 批准号:
16F16749 - 财政年份:2016
- 资助金额:
$ 0.77万 - 项目类别:
Grant-in-Aid for JSPS Fellows
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