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含碳纳米管段金属管Ce2@C100的合成、单分子电导和超分子组装
作者:小柯机器人 发布时间:2022/1/23 12:35:07

中国科学院化学研究所王太山团队报道了含碳纳米管段金属管Ce2@C100的合成、单分子电导和超分子组装。相关研究成果于2022年1月19日发表在《德国应用化学》。

管状富勒烯可以被认为是具有精确结构的端封碳纳米管,是用于先进单分子电子器件的有前途的纳米碳材料。

该文中,研究人员报道了金属富勒烯管Ce 2@D 5(450)-C 100的合成和表征,该金属富勒烯管具有管状C 100笼,带有碳纳米管段和两个富勒烯端盖。由于管状Ce2@D5(450)-C100与球形Ce2@Ih-C80之间存在结构相关性,该文通过实验和理论方法对它们的结构-性能关系进行了比较。值得注意的是,单分子电导测量确定Ce 2@D 5(450)-C100的电导率比Ce 2@Ih-C 80的电导率大8倍。

此外,还研究了Ce 2@D 5(450)-C 100和[12]CPP纳米环的超分子组装,理论计算表明,Ce 2@D 5(450)-C100在[12]CPP的空腔中采用了“直立”结构。研究结果表明了这种金属管的特殊性质。

附:英文原文

Title: A Metallofullertube of Ce2@C100 with Carbon Nanotube Segment: Synthesis, Single-Molecule Conductance and Supramolecular Assembly

Author: Wang Li, Fayu Qu, Linshan Liu, Zhuxia Zhang, Jiayi Liang, Yuxi Lu, Jie Zhang, Lin Wang, Chunru Wang, Taishan Wang

Issue&Volume: 2022-01-19

Abstract: Tubular fullerenes can be considered as end-capped carbon nanotubes with accurate structure, which are promising nanocarbon materials for advanced single-molecule electronic devices. Herein, we report the synthesis and characterizations of a metallofullertube Ce  2  @  D  5  (450)-C  100  , which has a tubular C  100  cage with a carbon nanotube segment and two fullerene end-caps. As there are structure correlations between tubular Ce  2  @  D  5  (450)-C  100  and spherical Ce  2  @  I  h  -C  80  , the structure-property relationship has been compared for them by means of experimental and theoretical methods. Notably, single-molecule conductance measurement determined that the conductivity of Ce  2  @  D  5  (450)-C  100  was up to eight times larger than that of Ce  2  @  I  h  -C  80  . Furthermore, supramolecular assembly of Ce  2  @  D  5  (450)-C  100  and [12]CPP nanohoop was investigated, and theoretical calculations revealed that metallofullertube Ce  2  @  D  5  (450)-C  100  adopted a “standing” configuration in the cavity of [12]CPP. These results demonstrate the special nature of this kind of metallofullertube.

DOI: 10.1002/anie.202116854

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202116854

期刊信息

Angewandte Chemie:《德国应用化学》,创刊于1887年。隶属于德国化学会,最新IF:12.959
官方网址:https://onlinelibrary.wiley.com/journal/15213773
投稿链接:https://www.editorialmanager.com/anie/default.aspx