检索结果-南通市图书馆

On-Surface Stereochemical Characterization of a Highly Curved Chiral Nanographene by Noncontact Atomic Force Microscopy and Scanning Tunneling Microscopy

引用

CCS Chemistry 2023年第12期5卷 2888-2896页

作者： Qigang Zhong Viktor Barat Daniel Csokas Kaifeng Niu Marcin Gorecki Animesh Ghosh Jonas Bjork Daniel Ebeling Lifeng Chi Andre Schirmeisen Mihaiela C.Stuparu Institute of Applied Physics Center for Materials Research(LaMa)Justus-Liebig University Giessen35392 Giessen School of Chemistry Chemical Engineering and BiotechnologyNanyang Technological University637371 Singapore Institute of Organic Chemistry Research Center for Natural SciencesH-1117 Budapest Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano and Soft MaterialsSoochow University215123 Suzhou Department of Physics Chemistry and BiologyIFMLinkoping University58183 Linkoping Institute of Organic Chemistry Polish Academy of Sciences01-224 Warsaw Macao Institute of Materials Science and Engineering(MIMSE) MUST-SUDA Joint Research Center for Advanced Functional MaterialsMacao University of Science and TechnologyTaipa 999078MacaoChina

A highly distorted chiral nanographene structure composed of triple corannulene-fused[5]helicenes is prepared with the help of the Heck reaction and oxidative photocyclization with an overall isolated yield of 28%.The complex three-dimensional(3D)structure of the bowl-helix hybrid nanostructure is studied by a combination of noncontact atomic force microscopy(AFM)and scanning tunneling microscopy(STM)on the Cu(111)surface,density functional theory calculations,AFM/STM simulations,and high-performance liquid chromatography-electronic circular dichroism *** examination reveals a molecular structure in which the three bowl-shaped corannulene bladesd position themselves in a C3-symmetric fashion around a highly twisted triphenylene *** molecule appears to be shaped like a propeller in which the concave side of the bowls face away from the connected[5]helicene *** chirality of the nanostructure is confirmed by the direct visualization of both MMM and PPP enantiomers at the single-molecule level by scanning probe *** results underline that submolecular resolution imaging by AFM/STM is a powerful real-space tool for the stereochemical characterization of 3D curved chiral nanographene structures.

关键词： chirality at surfaces noncontact atomic force microscopy scanning tunnelling microscopy submolecular resolution imaging single-bond resolution curved nanographenes multiple helicenes chiral nanostructures bowl-helix hybrids scanning probe microscopy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：