Structural and Nanotribological Properties of a BODIPY Self-Assembly.

Structural and Nanotribological Properties of a BODIPY Self-Assembly.
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BODIPY 自组装体的结构和纳米摩擦学特性

DOI:
10.3389/fchem.2021.704915
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发表时间:
2021
影响因子:
5.5
通讯作者:
Zeng Q
Zeng Q
中科院分区:
化学3区
文献类型:
--
作者:
Tan S;Luo W;Zhang Y;Ren XK;Liu Y;Chen Z;Zeng Q

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硼-二吡咯亚甲基(BODIPY)是一类很有前途的功能染料,其优异的光学性质与其超分子组装密切相关。本文利用扫描隧道显微镜(STM)对尿嘧啶官能化的BODIPY衍生物的自组装行为进行了详细的研究。基于密度泛函理论(DFT)方法的模拟和计算,可以认为有序自组装结构的形成归因于尿嘧啶基团之间氢键的形成。此外,用原子力显微镜(AFM)测量了HOPG表面自组装的纳米摩擦学性质。对BODIPY衍生物的自组装研究有助于加深对表面组装机理的理解。
Boron-dipyrromethenes (BODIPY) are promising functional dyes, whose exceptional optical properties are closely related to their supramolecular assembly. Herein, the self-assembly of a BODIPY derivative functionalized with uracil groups is explicitly and thoroughly investigated by using scanning tunneling microscopy (STM). Based on the simulation and calculation by density functional theory (DFT) method, it can be concluded that the construction of ordered self-assembly structure is attributed to the formation of hydrogen bonds between uracil groups. Moreover, the nanotribological property of the self-assembly on HOPG surface is measured by using atomic force microscopy (AFM). The effort on self-assembly of the BODIPY derivative could enhance the understanding of surface assembly mechanism.
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