Synthesis,Structure,and Optical-response Magnetic Property of a Heteroarene-azo Functionalized Mn_(19) Cluster  

作　　者：Yongkai Deng Yingying Wu Zhaoyang Li Zvonko Jagličić Rakesh Kumar Gupta Chenho Tung Di Sun 

机构地区：[1]Key Lab of Colloid and Interface Chemistry,Ministry of Education,School of Chemistry and Chemical Engineering,Shandong University,Jinan,Shandong,250100 China [2]School of Materials Science and Engineering,Nankai University,38 Tongyan Road,Haihe Educational Park,Tianjin,300350 China [3]Institute of Mathematics,Physics and Mechanics&Faculty of Civil and Geodetic Engineering,University of Ljubljana,1000 Ljubljana,Slovenia

出　　处：《Chinese Journal of Chemistry》2023年第14期1667-1672,共6页中国化学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.52261135637,22171164);the Natural Science Foundation of Shandong Province(No.ZR2022QB191);the Taishan Scholar Project of Shandong Province of China(Nos.tsqn201812003 and ts20190908);the Instrument Improvement Funds of Shandong University Public Technology Platform(No.ts20220102);the Slovenian Research Agency(Grant No.P2-0348).

摘　　要：Metal clusters with photoswitching ligands can undergo magnetic changes under light radiation,which makes them potential optical-response magnetic-switching materials.Herein,a photoswitchable Mn-oxo cluster[Mn^(II)_(15)Mn^(III)_(4)(L)_(18)(OH)_(12)(N_(3))_(6)](ClO_(4))_(2)(C_(6)H_(5)CN)_(8),(Mn19azo,HL=1-(hydroxymethyl)-3,5-dimethyl-4-(phenyldiazenyl)-pyrazole)has been designed and synthesized to realize the photoswitching behavior.Mn19azo shows quick trans-to-cis transformation upon 365 nm light irradiation in CH2Cl2 solution and solid state as confirmed by UV-Vis spectra.After the powder sample was irradiated for 80 min,the Curie constant of Mn19azo increases by about 7%.The change of magnetic properties can be considered as the result of the change of intermolecular interactions.

关 键 词：CRYSTALSTRUCTURE Cluster compounds PHOTOCHROMISM Magnetic properties Stimuli-responsive molecular magnet 

分 类 号：O641.4[理学—物理化学]