Size-controlled synthesis and near-infrared photothermal response of Cp* Rh-based metalla[2]catenanes and rectangular metallamacrocycles

Ying Zhao ¹Yin-Hang Chai ²Tian Chen ¹Jie Zheng ¹Ting-Ting Li ¹Francisco Aznarez ³Li-Long Dang ⁴Lu-Fang Ma²

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作者信息

1. College of Chemistry and Chemical Engineering,Henan Key Laboratory of Function-Oriented Porous Materials,Luoyang Normal University,Luoyang 471934,China
2. College of Chemistry and Chemical Engineering,Henan Key Laboratory of Function-Oriented Porous Materials,Luoyang Normal University,Luoyang 471934,China;College of Chemistry,Zhengzhou University,Zhengzhou 450001,China
3. Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,State Key Laboratory of Molecular Engineering of Polymers,Department of Chemistry,Fudan University,Shanghai 200438,China
4. College of Chemistry and Chemical Engineering,Henan Key Laboratory of Function-Oriented Porous Materials,Luoyang Normal University,Luoyang 471934,China;Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,State Key Laboratory of Molecular Engineering of Polymers,Department of Chemistry,Fudan University,Shanghai 200438,China
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Abstract

A variety of research reports on novel supramolecular topologies have been published over the last years.However,it is still a great challenge to tap into the inner functional properties of these complexes.Herein,two tetranuclear metallamacrocycles 1 and 2 and four octonuclear[2]catenanes 3-6 were constructed successfully via a coordination-driven self-assembly strategy,by conscious design and use of the tetram-ethyl bidentate pyridine ligand L1,and the appropriate selection of six binuclear half-sandwich rhodium building units with different longitudinal dimensions.The complexes have been fully characterized by single crystal X-ray diffraction analysis and NMR spectroscopy.Furthermore,near-infrared photothermal studies of the obtained[2]catenanes reveal different photothermal response in solid and solution states,which may be attributed to a strong fluorescence quenching effect of the half-sandwich organometallic fragment and different conjugated effect of Cp*Rh based building blocks in the interlocking structures.The photothermal conversion efficiencies of[2]catenanes 4-6 fall in the range 30.5％-16.5％respectively.This contribution aims to play a key role in the experimental development of Cp*-based photothermal materials.

Key words

[2]Catenanes/Photothermal materials/Supramolecular topologies/Half-sandwich fragment/3,3'-N-donor analogues

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基金项目

National Natural Science Foundation of China(22101108)

National Natural Science Foundation of China(22171123)

Shanghai Science and Technology Committee(19DZ2270100)

training Plan for Young Core Teachers in Higher Education of Henan Province(2021GGJS131)

Natural Science Foundation of Henan Province(232300421232)

出版年

2024

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCDCSCD

影响因子：0.771

ISSN：1001-8417

参考文献量60

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