固/液界面三联苯-3,5,3′,5′四羧酸自组装及结构调控研究  

Self-assembly and structural regulation of p-terphenyl-3,5,3′,5′-tetra-carboxylic acid network at solid/liquid interface

作　　者：邱深玉[1,2] 周琦 张城东 李思齐 李玉碟 李未[1,2] QIU Shenyu;ZHOU Qi;ZHANG Chengdong;LI Siqi;LI Yudie;LI Wei(School of Science,Nanchang Institute of Technology,Nanchang 330099,China;Nanchang Key Laboratory of Optoelectronic Conversion and Energy Storage Materials,Nanchang Institute of Technology,Nanchang 330099,China)

机构地区：[1]南昌工程学院理学院,江西南昌330099 [2]南昌工程学院南昌市光电转换与储能材料重点实验室,江西南昌330099

出　　处：《南昌工程学院学报》2022年第6期102-106,共5页Journal of Nanchang Institute of Technology

基　　金：江西省教育厅科学技术研究项目(GJJ180941);江西省自然科学基金资助项目(20202 BABL201016);国家自然科学基金资助项目(12064026);南昌工程学院研究生创新计划项目(YJSCX20211);国家级大学生创新创业教育计划项目(202211319014)。

摘　　要：羧酸分子的自组装对理解二维表面纳米结构的精确构建起着重要作用。本文利用5500扫描隧道显微镜研究了在高定向热解石墨表面(HOPG)上三联苯-3,5,3′,5′四羧酸(TPTC)自组装结构,以及1,3-间苯二甲酸(IPA)和冠烯(COR)客体分子对TPTC自组装结构的调控。结果表明,TPTC通过两种简并氢键自组装形成5种不同形状的网络结构,并且每种网络结构的数量不相同。然后在IPA形成的“锯齿形”氢键网络结构中加入TPTC和COR两种客体分子,发现COR会进入TPTC网络结构形成六角形多孔主客体结构。The self-assembly of carboxylic acid molecules plays an important role in understanding the precise construction of two-dimensional surface nanostructures.In this paper,the self-assembled structure of p-terphenyl-3,5,3′,5′-tetra-carboxylic acid(TPTC)on highly oriented pyrolytic graphite surface(HOPG)was studied by scanning tunneling microscopy(STM)with extremely high molecular resolution,and the regulatory behaviors of Isophthalic acid(IPA)and coronene(COR)on TPTC self-assembly structure were also investigated.The results clearly show that the target molecule TPTC can self-assemble into glass-like random-tiling motifs presenting five types of pores,including a different number of molecular networks via hydrogen bonding.When TPTC and COR guest molecules were added into the zigzag hydrogen bond network structure formed by IPA,it was found that COR would enter TPTC network structure to form a hexagonal porous host-guest structure.

关 键 词：扫描隧道显微镜 三联苯-3 5 3′ 5′四羧酸 自组装 主客体结构 

分 类 号：O485[理学—固体物理]