Fluorescence modulation via photoinduced spin crossover switched energy transfer from fluorophores to Fe-II ions

doi:10.1039/c7sc05221a

	Fluorescence modulation via photoinduced spin crossover switched energy transfer from fluorophores to Fe-II ions
	Shi, Quan 2; Liu, Tao 1; Wang, Jun-Li 1; Liu, Qiang 1; Meng, Yin-Shan 1; Liu, Xin 1; Zheng, Hui 2; Duan, Chun-Ying 1
刊名	CHEMICAL SCIENCE
	2018-03-21
卷号	9 期号:11 页码:2892-2897
ISSN号	2041-6520
DOI	10.1039/c7sc05221a
文献子类	Article
英文摘要	Molecular materials possessing phototunable fluorescence properties have attracted great interest owing to their potential applications in optical switches and storage. However, most fluorescence modulation is realized through light-responsive structural isomerization in solution. It is a formidable challenge to achieve phototunable fluorescence emission with high fatigue resistance and a fast response rate in the solid state for the development of devices. Here, a mononuclear compound was constructed via the coordination of fluorophores with Fe-II ions, whose electronic configuration changed from low spin to high spin upon light irradiation. The photoinduced spin crossover of Fe-II ions was accompanied by a 20% increase in the fluorescence emission intensity. A temperature-dependent spectroscopic study together with time-dependent density functional theory calculations revealed that the effective spectral overlap between the emission of the fluorophores and the absorption band of the Fe-II ions differed between the low spin and high spin states. The photoinduced spin crossover switched the energy transfer from the fluorophore to the Fe-II ion, resulting in fluorescence modulation. The presented results provide a novel approach for developing optical memory and sensors via electron rearrangement of photoinduced spin crossover.
WOS关键词	ORTHO-FLUOROAZOBENZENES ; ORGANIC NANOPARTICLES ; IRON(II) COMPLEX ; STATE ; PHOTOMAGNETISM ; LUMINESCENCE ; TRANSITION ; PHOTOCHROMISM ; MAGNET
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000431100800004
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/167114]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Liu, Tao
作者单位	1.Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Liaoning Prov Key Lab Thermochem Energy & Mat, Thermochem Lab,Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Shi, Quan,Liu, Tao,Wang, Jun-Li,et al. Fluorescence modulation via photoinduced spin crossover switched energy transfer from fluorophores to Fe-II ions[J]. CHEMICAL SCIENCE,2018,9(11):2892-2897.
APA	Shi, Quan.,Liu, Tao.,Wang, Jun-Li.,Liu, Qiang.,Meng, Yin-Shan.,...&Duan, Chun-Ying.(2018).Fluorescence modulation via photoinduced spin crossover switched energy transfer from fluorophores to Fe-II ions.CHEMICAL SCIENCE,9(11),2892-2897.
MLA	Shi, Quan,et al."Fluorescence modulation via photoinduced spin crossover switched energy transfer from fluorophores to Fe-II ions".CHEMICAL SCIENCE 9.11(2018):2892-2897.