Acidity-Driven Bidirectional Room-Temperature Spin-State Switch and Fluorescence Modulation of a Mononuclear Fe(II) Complex  

作　　者：Yi-Shan Ye Xiu-Qin Chen Kai-Yan Shen Ming-Liang Tong Xin Bao 

机构地区：[1]School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094 [2]School of Chemistry,Sun Yat-Sen University,Guangzhou 510275

出　　处：《CCS Chemistry》2021年第8期2350-2358,共9页中国化学会会刊（英文）

基　　金：supported by the National Natural Science Foundation of China(nos.21871140 and 21401104).

摘　　要：Room-temperature switchable materials showing multiple responses toward external stimuli are highly desired.Herein,we report bidirectional spin-state switch and fluorescence modulation of an Fe(II)complex(1)based on a rhodamine B 2-pyridinecarbaldehyde hydrazone ligand in both the solid state and solution.The complex is predominantly stabilized in the low-spin(LS)state at room temperature due to the strong ligand-field strength imposed by acylhydrazone pyridine.

关 键 词：room-temperature switch spin-state change fluorescence modulation Fe(II)complex labile coordination sphere 

分 类 号：TB34[一般工业技术—材料科学与工程]