Pressure-induced emission band separation of the hybridized local and charge transfer excited state in a TPE-based crystal

doi:10.1039/c8cp02096e

CORC > 化学研究所 > 中国科学院化学研究所

	Pressure-induced emission band separation of the hybridized local and charge transfer excited state in a TPE-based crystal
	Liu, Xuedan 1; Li, Aisen 2; Xu, Weiqing 2; Ma, Zhiyong 1; Jia, Xinru 3
刊名	PHYSICAL CHEMISTRY CHEMICAL PHYSICS
	2018-05-21
卷号	20 期号:19 页码:13249-13254
ISSN号	1463-9076
DOI	10.1039/c8cp02096e
英文摘要	We herein report a newly synthesized simple molecule, named TPE?C4, with twisted D-A structure. TPE?C4 showed two intrinsic emission bands ascribed to the locally excited (LE) state and the intramolecular charge transfer (ICT) state, respectively. In the crystal state, the LE emission band is usually observed. However, by applying hydrostatic pressure to the powder sample and the single crystal sample of TPE?C4, dual-fluorescence (445 nm and 532 nm) was emerged under high pressure, owing to the pressure-induced emission band separation of the hybridized local and charge transfer excited state (HLCT). It is found that the emission of TPE?C4 is generally determined by the ratio of the LE state to the ICT state. The ICT emission band is much more sensitive to the external pressure than the LE emission band. The HLCT state leads to a sample with different responsiveness to grinding and hydrostatic pressure. This study is of significance in the molecular design of such D-A type molecules and in the control of photoluminescence features by molecular structure. Such results are expected to pave a new way to further understand the relationship between the D-A molecular structure and stimuli-responsive properties.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000432601300014
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/42851]
专题	中国科学院化学研究所
通讯作者	Ma, Zhiyong
作者单位	1.Beijing Univ Chem Technol, Coll Chem Engn, Beijing State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China 2.Jilin Univ, Coll Phys, Inst Theoret Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Jilin, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, Minist Educ, Key Lab Polymer Chem & Phys,Beijing Natl Lab Mol, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xuedan,Li, Aisen,Xu, Weiqing,et al. Pressure-induced emission band separation of the hybridized local and charge transfer excited state in a TPE-based crystal[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2018,20(19):13249-13254.
APA	Liu, Xuedan,Li, Aisen,Xu, Weiqing,Ma, Zhiyong,&Jia, Xinru.(2018).Pressure-induced emission band separation of the hybridized local and charge transfer excited state in a TPE-based crystal.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,20(19),13249-13254.
MLA	Liu, Xuedan,et al."Pressure-induced emission band separation of the hybridized local and charge transfer excited state in a TPE-based crystal".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 20.19(2018):13249-13254.