Final published version, 1.25 MB, PDF document
Available under license: CC BY: Creative Commons Attribution 4.0 International License
Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Single-molecule level control of host-guest interactions in metallocycle-C60 complexes
AU - Tang, Jian-Hong
AU - Li, Yueqi
AU - Wu, Qingqing
AU - Wang, Zixiao
AU - Hou, Songjun
AU - Tang, Kun
AU - Sun, Yue
AU - Wang, Hui
AU - Wang, Heng
AU - Lu, Cheng
AU - Wang, Xiang
AU - Li, Xiaopeng
AU - Wang, Dong
AU - Yao, Jiannian
AU - Lambert, Colin
AU - Tao, Nongjian
AU - Zhong, Yu-Wu
AU - Stang, Peter J.
PY - 2019/10/10
Y1 - 2019/10/10
N2 - Host−guest interactions are of central importance in many biological and chemical processes. However, the investigation of the formation and decomplexation of host−guest systems at the single-molecule level has been a challenging task. Here we show that the single-molecule conductance of organoplatinum(II) metallocycle hosts can be enhanced by an order of magnitude by the incorporation of a C60 guest molecule. Mechanically stretching the metallocycle-C60 junction with a scanning tunneling microscopy break junction technique causes the release of the C60 guest from the metallocycle, and consequently the conductance switches back to the free-host level. Metallocycle hosts with different shapes and cavity sizes show different degrees of flexibility to accommodate the C60 guest in response to mechanical stretching. DFT calculations provide further insights into the electronic structures and charge transport properties of the molecular junctions based on metallocycles and the metallocycle-C60 complexes.
AB - Host−guest interactions are of central importance in many biological and chemical processes. However, the investigation of the formation and decomplexation of host−guest systems at the single-molecule level has been a challenging task. Here we show that the single-molecule conductance of organoplatinum(II) metallocycle hosts can be enhanced by an order of magnitude by the incorporation of a C60 guest molecule. Mechanically stretching the metallocycle-C60 junction with a scanning tunneling microscopy break junction technique causes the release of the C60 guest from the metallocycle, and consequently the conductance switches back to the free-host level. Metallocycle hosts with different shapes and cavity sizes show different degrees of flexibility to accommodate the C60 guest in response to mechanical stretching. DFT calculations provide further insights into the electronic structures and charge transport properties of the molecular junctions based on metallocycles and the metallocycle-C60 complexes.
U2 - 10.1038/s41467-019-12534-6
DO - 10.1038/s41467-019-12534-6
M3 - Journal article
VL - 10
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 4599
ER -