1342894-98-7Relevant academic research and scientific papers
Reaction-based probe for hydrogen sulfite: dual-channel and good ratiometric response
Cheng, Xiaohong,Zhong, Zhicheng,Liang, Guijie,He, Ping
, p. 1372 - 1378 (2016/10/19)
We designed and synthesized a new series of intramolecular charge transfer (ICT) molecules (compounds T1, T2 and T3) by attaching various electron-donating thiophene groups to the triphenylamine backbone with aldehyde group as the electron acceptor. Based on the nucleophilic addition reaction between hydrogen sulfite and aldehyde, all compounds could act as ratiometric optical probe for hydrogen sulfite and displayed efficient chromogenic and fluorogenic signaling. Upon the addition of hydrogen sulfite anions, probe T3 displayed apparent fluorescent color changes from yellowish-green to blue, with a large emission wavelength shift (Δλ = 120?nm). T3 responded to hydrogen sulfite with high sensitivity and the detection limit was determined to be as low as 0.9?μM. At the same time, apparent changes in UV–vis spectra could also be observed. By virtue of the special nucleophilic addition reaction with aldehyde, T3 displayed high selectivity over other anions. Copyright
Fluorescent and colorimetric probes for mercury(II): Tunable structures of electron donor and π-conjugated bridge
Cheng, Xiaohong,Li, Shuang,Jia, Huizhen,Zhong, Aoshu,Zhong, Cheng,Feng, Jun,Qin, Jingui,Li, Zhen
, p. 1691 - 1699 (2012/03/27)
A new series of intramolecular-charge-transfer (ICT) molecules (compounds 1, 2, and 3) were synthesized by attaching various electron-donating thiophenes groups to a triphenylamine backbone with an aldehyde group as the electron acceptor. Based on the protection reaction between ethanethiol and aldehyde, the corresponding dithioacetals (compounds S1, S2, and S3) were prepared to serve as novel colorimetric and fluorescent chemosensors for Hg2+ ions. Also, compound S1 was further utilized to construct the chemical-reaction-based conjugated polymer probe (PS1) towards Hg2+ ions. In the presence of as little as 10 nM Hg2+, compound PS1 displayed an apparent change in the fluorescent intensity. The sensing processes were revealed to be mediated by ICT, as confirmed by time-dependent DFT calculations. Furthermore, compound S1 was successfully applied to microscopic imaging for the detection of Hg 2+ in HeLa cells with ratiometric fluorescent methods. Copyright
New alternating copolymers of fluorene and triphenylamine bearing terthiophene and acceptor groups in the side chains: Synthesis and photovoltaic properties
Li, Shuang,He, Zhicai,Zhong, Aoshu,Yu, Jian,Wu, Hongbin,Zhou, Yue,Chen, Su'An,Zhong, Cheng,Qin, Jingui,Li, Zhen
experimental part, p. 5302 - 5311 (2012/06/04)
A series of conjugated copolymers (P1 and P2-CN-P4-CN) were prepared, in which two kinds of side chains were designed: one was the repeating units similar to that of P3HT, with the aim to increase the compatible with PC 61BM and the hole mobili
