Donor-acceptor modulation of coordination polymers for effective photothermal conversion  

作　　者：Bo Zhang Xing-Wang Li Han Fang Chang-Tai Li Si-Jia Yu Mei-Hui Yu Ze Chang Xian-He Bu 

机构地区：[1]School of Materials Science and Engineering,Nankai University,Tianjin 300350,China [2]State Key Laboratory of Elemento-Organic Chemistry,Nankai University,Tianjin 300350,China

出　　处：《Science China Chemistry》2024年第12期4175-4183,共9页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China(22375104,22371134,and 22035003);the National Key R&D Program of China(2022YFA1503301);Haihe Laboratory of Sustainable Chemical Transformations(YYJC202101)。

摘　　要：The targeted construction of donor-acceptor(D-A)materials featuring efficient photothermal(PT)conversion properties has been an attractive but challenging goal.Herein,a new series of coordination polymers(CPs)featuring different PT performances were constructed with flexible linker 1,1′-Ferrocenedicarboxylic acid(FCA)and 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine(TPT)as acceptor and donor molecules including coronene and tetrathiafulvalene(TTF).Based on the flexible configurations of FCA ligand and the directing of donor dependent D-A interactions,the structures of TF-1 to TF-3 featuring distinctive dimension were obtained based on Cd(Ⅱ)ions for investigating the PT property in configurational perspectives.A systematic investigation of the PT properties of the CPs was performed.Notably,TF-3 exhibits the finest PT conversion effect under the irradiation of560 nm laser,while TF-2 shows optimal PT conversion under 808 nm laser irradiation required for biological PT therapy,illustrating the correlation between the structural and component features of the CPs and their PT performances.Furthermore,Zn(Ⅱ)as bio-friendly ion was utilized to construct hypotoxic TF-4 that reveals similar structure to that of TF-2 for potential application.Polydimethylsiloxane(PDMS)patches doped with TF-4 exhibits considerable NIR PT conversion effect under808 nm,represented by the nearly 80℃temperature increased in 120 s for TF-4@PDMS patch(1.2 wt%)under 0.9 W cm^(-2)irradiation,the results of which herein indicate the potential of D-A CPs as versatile platform for the modulation of PT materials.

关 键 词：donor-acceptor material coordination polymer configuration modulation photothermal conversion charge transfer 

分 类 号：O641.4[理学—物理化学] TB34[理学—化学]