408359-98-8Relevant articles and documents
Luminescence Color Tuning by Regulating Electrostatic Interaction in Light-Emitting Devices and Two-Photon Excited Information Decryption
Ma, Yun,Liu, Shujuan,Yang, Huiran,Zeng, Yi,She, Pengfei,Zhu, Nianyong,Ho, Cheuk-Lam,Zhao, Qiang,Huang, Wei,Wong, Wai-Yeung
, p. 2409 - 2416 (2017)
It is well-known that the variation of noncovalent interactions of luminophores, such as π- π interaction, metal-to-metal interaction, and hydrogen-bonding interaction, can regulate their emission colors. Electrostatic interaction is also an important noncovalent interaction. However, very few examples of luminescence color tuning induced by electrostatic interaction were reported. Herein, a series of Zn(II)-bis(terpyridine) complexes (Zn-AcO, Zn-BF4, Zn-ClO4, and Zn-PF6) containing different anionic counterions were reported, which exhibit counterion-dependent emission colors from green-yellow to orange-red (549 to 622 nm) in CH2Cl2 solution. More importantly, it was found that the excited states of these Zn(II) complexes can be regulated by changing the electrostatic interaction between Zn2+ and counterions. On the basis of this controllable excited state, white light emission has been achieved by a single molecule, and a white light-emitting device has been fabricated. Moreover, a novel type of data decryption system with Zn-PF6 as the optical recording medium has been developed by the two-photon excitation technique. Our results suggest that rationally controlled excited states of these Zn(II) complexes by regulating electrostatic interaction have promising applications in various optoelectronic fields, such as light-emitting devices, information recording, security protection, and so on.
Five-stage near-infrared electrochromism in electropolymerized films composed of alternating cyclometalated bisruthenium and bis-triarylamine segments
Yao, Chang-Jiang,Zhong, Yu-Wu,Yao, Jiannian
, p. 10000 - 10008 (2013)
Oxidative electropolymerization of cyclometalated bisruthenium complexes [(Nptpy)2Ru2(tppyr)](PF6)2 and [(Nptpy)2Ru2(tpb)](PF6)2 produced adherent metallopolymeric films on electrode surfaces, where Nptpy is 4'-(p-N,N-diphenylamino)phenyl-2,2':6',2'-terpyridine, tppyr is the 2,7-bisdeprotonated form of 1,3,6,8-tetra(pyrid-2-yl)pyrene, and tpb is the 3,6-bisdeprotonated form of 1,2,4,5-tetra(pyrid-2-yl)benzene. The resulting polymers are composed of two types of alternating constituent units: tppyr- or tpb-bridged cyclometalated bisruthenium units and biphenyl-bridged bis-triarylamine segments. These films exhibited four well-defined anodic redox couples as a result of the stepwise oxidations of these two units. By manipulating the intervalence charge-transfer transitions of mixed-valent bisruthenium and bis-triarylamine units, five-stage near-infrared electrochromism with stepwise color changes accompanied by good contrast ratio and coloration efficiency has been realized in these films. The film characterization by scanning electronic microscopy and X-ray photoelectron spectroscopy techniques are presented as well.
Triphenylamine-based derivative as well as preparation method and application thereof
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Paragraph 0078-0080, (2020/08/27)
The invention discloses a derivative based on triphenylamine, wherein the derivative has the following structural general formula described in the specification, wherein R is hydrogen, alkyl, alkoxy,C4-C18 aryl, and C1-C18 alkyl substituted or unsubstituted C2-C8 heterocyclic group, and X is nitro, cyano or C1-C18 alkoxy group substituted C1-C16 alkenyl, pyridyl, bipyridyl, terpyridyl, carboxyl substituted C4-C18 aryl hydrazino alkenyl, nitro substituted C4-C18 aryl hydrazino alkenyl, alkyl substituted sulfenyl, and alkoxy substituted sulfenyl. The triphenylamine-based derivative provided bythe invention is used as a hydrogen sulfide probe molecule; it is found that the derivative has high sensitivity and good selectivity to hydrogen sulfide, after a solution containing the probe is contacted with hydrogen sulfide, the fluorescence under ultraviolet light and the color under natural light are obviously different from those before contact, and the hydrogen sulfide can be well identified.
Structure-dependent and environment-responsive optical properties of the trisheterocyclic systems with electron donating amino groups
Palion-Gazda, Joanna,Machura, Barbara,Klemens, Tomasz,Szlapa-Kula, Agata,Krompiec, Stanis?aw,Siwy, Mariola,Janeczek, Henryk,Schab-Balcerzak, Ewa,Grzelak, Justyna,Ma?kowski, Sebastian
, p. 283 - 300 (2019/03/26)
A series of 2,2′:6′,2″-terpyridine (terpy), 2,6-di(thiazol-2-yl)pyridine (dtpy), and 2,6-di(pyrazin-2-yl)pyridine (dppy) derivatives with electron donating amino groups (dimethylamine, piperidine, morpholine and diphenylamine) connected to the terpy/dtpy/
