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

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外文摘要：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.

外文关键词：

[2]CatenanesPhotothermal materialsSupramolecular topologiesHalf-sandwich fragment3,3'-N-donor analogues

作者：

Ying Zhao、Yin-Hang Chai、Tian Chen、Jie Zheng、Ting-Ting Li、Francisco Aznarez、Li-Long Dang、Lu-Fang Ma

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作者单位：

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

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

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaShanghai Science and Technology Committeetraining Plan for Young Core Teachers in Higher Education of Henan ProvinceNatural Science Foundation of Henan Province

项目编号：

221011082217112319DZ22701002021GGJS131232300421232

出版年：

2024

DOI：

10.1016/j.cclet.2023.109298

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCD

影响因子：0.771

ISSN：1001-8417

年,卷(期)：2024.35(6)